RedMax Trimmer EXZ2450S PH User Guide

EXZ2450S-PH

848-J9W-93A0 (909)

2009-08

OWNER'S/OPERATOR'S

MANUAL

BC-EX2

EXZ2450S-PH

EXtreme™

LRT-EX

PS-EX

HE-EX2

RMS-EX

EXZ2450S-PH

WARNING

The engine exhaust from this

product contains chemicals

known to the State of California to

cause cancer, birth defects or

other reproductive harm.

WARNING

Before using our products,

please read this manual carefully

to understand the proper use of

your unit.

APPLICABLE SERIAL NUMBERS :

ENGINE UNIT 60100000 and up

PH-EXZ

BC-EX2

LRT-EX

PS-EX

HE-EX2

RMS-EX

60300000 and up

50200000 and up

000531

000000

000101

and up

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EXZ2450S-PH

1. Parts location

1. Loop handle

2. Suspention point

3. Stop switch

4. Throttle cable

5. Throttle trigger

6. Drive shaft housing

7. Knob bolt

8. Spark arrester

9. Starter knob

10. Fuel tank

BC-EX2

11. Primer pump

12. Choke lever

13. Air cleaner cover

14. Debris guard

15. Gear case

16. Cutting line head

17. Blade

18. Gear case

LRT-EX

PS-EX

19. Guide bar

20. Saw chain

21. Chain cover

22. Gear case

23. Wheel

24. Blade guard

25. Blade

26. Sweeper belt

HE-EX2

RMS-EX

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2. Specifications

■ Model EXZ2450S-PH

Engine

Type···················································································································· Air-cooled 2-stroke gasoline

Model ··················································································································································· GZ23N

Displacement······················································································································ 1.5cu-in (23.6cm )

-1

Max. output···························································································· 1.15Hp (0.858kW)at 8000/min (rpm)

-1

Idle speed························································································································3000 200/min (rpm)

Fuel······················································································································ Mixture(Gasoline 50 : Oil 1)

(when using RedMax genuine oil)

Carburetor·················································································································· Walbro Diaphragm type

Spark plug···································································································································NGK CMR7H

Fuel tank capacity····························································································································21.3 fl.oz (0.63

)

Durability period···············································································································································300hrs.

■ BC-EX2

Overall size(LxWxH) ····················································································· 70.5(1790)x9.8(250)x12.2(310) in(mm)

Dry weight w/o acc.···························································································································· 11.5 lbs (5.2kg)

Transmission········································································································ Centrifugal clutch, Rigid driveshaft

Reduction ratio··················································································································································· 1.462

Cutting head rotating direction·············································································· Counter-clockwise(Operator view)

■ LRT-EX

Overall size(LxWxH) ····················································································· 90.1(2300)x9.8(250)x12.2(310) in(mm)

Dry weight w/o acc.····························································································································· 13.4 lbs(6.1kg)

Cutting head

Type ·····················································································································Reciprocating Double blade

Tooth ····················································································································································28teeth

Pitch······························································································································································30

Effective cut width·························································································································16 in (40cm)

Angle adjust range·····························································90°( 45° from cutting head position aligned shaft)

■ PS-EX

Overall size(LxWxH) ····················································································· 83.9(2100)x9.8(250)x12.2(310) in(mm)

Dry weight w/o bar and chain·········································································································· 11.1 lbs (5.05 kg)

Cutting head

Guide bar : Type··············································································· OREGON DOUBLE GUARD 109666

Size ·················································································································· 12(300) in(mm)

Saw chain : Type ········································································································· OREGON 90SG44X

pitch x guage ·············································································· 3/8x0.042(9.53x1.07) in(mm)

Sprocket ·······················································································································································7T

Oil pump·······································································································································Plunger type

■ HE-EX2

Overall size(LxWxH) ····················································································· 71.2(1810)x9.4(240)x13.2(335) in(mm)

Dry weight w/o acc.···························································································································· 14.5 lbs (7.2kg)

Transmission ·························································· Centrifugal clutch, Rigid driveshaft, Bevel gears(Angle:90 deg.)

Reduction ratio ······································································································································· 2.538(33.13)

Blade length ···································································································································· 7.87(200) in(mm)

■ RMS-EX

Overall size(LxWxH) ······················································································ 71.3(1810)x27(686)x12.2(310) in(mm)

Dry weight w/o acc.·························································································································· 20.5 lbs (9.29kg)

Specifications are subject to change without notice.

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EXZ2450S-PH

3. Warning labels on the machine

( )

15m (50ft)

(1) Read owner/operator manual before operating this machine.

(2) Wear head, eye and ear protection.

(3) Warning! Danger of kickback.

(4) Beware of thrown objects.

(5) Warning/Attention

(6) Keep all children, bystanders and helpers 15 meters away from the brushcutter

IMPORTANT

If warning label peel off or become soiled and impossible to read, you should contact the dealer from

which you purchased the product to order new labels and affix them in the required location(s).

WARNING

Never modify your brushcutter.

We won't warrant the machine, if you use the remodeled brushcutter or you don't observe the

proper usage written in the manual.

4. Symbols on the machine

For safe operation and maintenance, symbols

are carved in relief on the machine. According

to these indications, please be careful not to

take a mistake.

■ EMISSION CONTROL

An emission control label is located on the engine.

EMISSION CONTROL INFORMATION

THIS ENGINE MEETS U.S. EPA AND CALI-

FORNIA EXH / EVP REGS FOR 2009* S.O.R.E.

(a) The port to refuel the "MIX GASOLINE"

Position: FUEL TANK CAP

ENGINE FAMILY : 9HQZS.0244XY* DISPL.: 24cc

EMISSION CONTROL SYSTEM : EXH;EM/EVP;SP*

COMPLIANCE PERIOD : 300 HOURS

REFER TO OPERATOR'S MANUAL FOR MAINTE-

NANCE, SPECIFICATIONS AND ADJUSTMENTS.

MANUFACTURED:

(b) The direction to close the choke

Position: AIR CLEANER COVER

USE JASO FD OR ISO L-EGD GRADE 50:1 OIL

Position: AIR CLEANER COVER

*1: The year will be changed every year of manufacturing.

*2: The initial number will be changed every year of

manufacturing.

(d) If you turn the rod by screwdriver follow the

arrow to the “MAX” position, the chain oil

flow more, and if you turn to the “MIN”

position, less.

*3: SP : Sealed tank made of HDPE or PE.

Position: Bottom of the GEAR CASE

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5. For safe operation

b: Approved ear protection to reduce the

risk of hearing loss.

WARNING

c: Approved (ANSI Z87.1.) eye protection

and foot protection to reduce the risk of

injury associated with thrown objects.

d: Face filter mask in dusty conditions to

reduce the risk of injury associated with

the inhalation of dust.

e: Wear sturdy rubber-soled shoes or

shoes with some other form of anti-slip

protection to help protect you against

falling.

f: Wear thick anti-vibration gloves to

reduce the risk of whitefinger disease.

g: Do not wear loose clothing, scarves,

neck chains, unconfineed long hair, and

like to reduce the risk of injury

• A brushcutter or trimmer can be

dangerous if used incorrectly or

carelessly, and can cause serious or

fatal injury to the operater or others. It

is extremely important that you read

and understand the contents of this

Owner's manual.

• Under no circumstances may the

design of the machine be modified

without the permission of the

manufacturer. Always use genuine

accessories and parts. Non-authorized

modifications and/or accessories or

parts can result in serious personal

injury or the death of the operator or

others.

• When planning your work schedule,

allow plenty of time to rest. Limit the

amount of time over which the product

is to be used continuously to

somewhere around 30 ~ 40 minutes per

session. Also try to keep the total

amount of work performed in a single

day under 2 hours or less.

• If you don’t observe the working time,

or working manner (See p6), Repetitive

Stress Injury(RSI) could occur.

If you feel discomfort, redness and

swelling of your fingers or any other

part of your body, see a doctor before

getting worse.

associated with objects being drawn into

air intake and rotating parts.

Personal protective equipment cannot

eliminate the risk of injury but it will reduce

the degree of injury.

4. The ignition system of your unit produces

an electromagnetic field of a very low

intensity. This field may interfere with some

pacemakers. To reduce the risk of serious

or fatal injury, persons with pacemaker

should consult their physician and the

pacemaker munufacturer before operating

this tool.

5. The area within a perimeter of 50 feet (15

meters) of the person using the product

should be considered a hazardous area

into which no one should enter. If

necessary yellow warning rope, warning

signs should be placed around the

perimeter of the area.

■ Basic safety rules

1. Never operate the product when you are

fatigued, ill, or upset, or under the

influence of madication that may make you

drowsy, or if you are under the influence

of alcohol or drugs.

When work is to be performed

simultaneously by two or more persons,

care should also be taken to constantly

look around or otherwise check for the

presence and locations of other people

working so as to maintain a distance

between each person sufficient to ensure

safety.

6. Avoid using the product where stable

footing and balance are not assured.

7. All product service, other than the items

listed in the Owner's Manual, should be

performed by competent service

personnel.

8. Always shut off the engine before setting it

down.

9. Start the engine only in well ventilated

areas. Never start or run the engine inside

a closed room or building and potentially

explosive atmosphere. Exhaust fumes

2. Never use the product;

a: When the ground is slippery or when

you can't maintain a steady posture.

b: At night, at times of heavy fog, or at any

other times when your field of vision

might be limited and it would be difficult

to gain a clear view of the working area.

c: During rain storms, during lightning

storms, at times of strong or gale-force

winds, or at any other times when

weather conditions might make it

unsafe to use the product.

3. Wear the following protective equipments

when operating the product.

a: Approved helmet to reduce the risk of

falling objects.

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5. For safe operation

contain dangerous carbon monoxide.

place so as to ensure that neither the

10. Never to touch the spark plug or plug cord

while the engine is in operation Doing so

may result in being subjected to an

electrical shock.

11.Never to touch the muffler, spark plug,

other metallic parts of the engine or

engine cover while the engine is in

operation or immediately after shutting

down the engine. These metallic parts

and engine cover reach high

cutting part nor the throttle come into

contact with any obstacle when the engine

starts.

WARNING

Make sure the throttle is at idle position.

Never place the throttle into the high

speed position or half throttle position

(throttle lock position) when starting the

engine.

temperatures during operation and doing

so could result in serious burns.

12.To reduce the risk of injury associated

with contacting rotating parts, stop the

engine before installing or removing

attachments. Always disconnect the spark

plug before performing maintenance or

accessing movable parts.

3. After starting the engine, check to make

sure that the cutting attachment stops

rotating when the throttle is moved fully

back to its original position (idle position). If

it continues to rotate even after the throttle

has been moved fully back, turn off the

engine and take the unit to your authorized

RedMax servicing dealer for repair.

■ Before use

1. Each time before starting the engine,

inspect the entire unit to see if every part

is in good order and is securely tightened

in place. If any damage is found in the fuel

line, the exhaust line, or the ignition wiring,

do not use the product until it has been

repaired.

■ Using the product

IMPORTANT

Cut only materials recommended by the

manufacturer. And use only for tasks

explained in the manual.

WARNING

1. Grip the handles firmly with both hands

using your whole hand. Place your feet

slightly apart (slightly further apart than the

width of your shoulders) so that your

weight is distributed evenly across both

legs, and always be sure to maintain a

steady , even posture while working.

2. Keep cutting attachment below waist level.

3. Maintain the speed of the engine at the

level required to perform cutting work, and

never raise the speed of the engine above

the level necessary.

4. If you detect abnormal vibration or noise

during operation, promptly stop the product

and check whether something has broken.

If a breakedown has occurred, do not

operate the product until the problem is

fixed.

2. Before starting operation, always make

sure that the cutting attachment and the

debris guard are properly installed and

securely fastened.

3. If the cutting head is the metal blade,

change the guard and handle as shown in

the Owner's manual (see P17).

4. Check the condition of working area to

avoid any accident by hitting hidden

obstacles such as stumps, stones, cans, or

broken grass.

IMPORTANT

Remove any obstacle before beginning work.

■ Starting the engine

5. Keep all parts of your body away from

rotating cutting attachment.

1. Keep bystanders and animals at least 50

feet (15 meters) away from the operating

point. If you are approached, immediately

stop the engine.

2. The product is equipped with centrifugal

clutch mechanism, so the cutting

attachment could rotate as soon as the

engine is started. When starting the

engine, place the product onto the ground

in a flat clear area and hold it firmly in

6. Guard against hazardous situations at all

times. Warn adults to keep pets and

children away from the area. Be careful if

you are approached. Injury may result from

flying debris.

7. If someone calls out or otherwise interrupts

you while working, always be sure to turn

off the engine before turning around.

8. After using the product and other

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5. For safe operation

equipment, CLEAN UP!

2. To reduce sound levels, limit the number of

pieces of equipment used at any one time.

3. Operate the product at the lowest possible

throttle speed to do the job.

4. Check your equipment before operation,

especially the muffler, air intakes and air

filters.

■ Transport

1. Drain the fuel from the fuel tank before

transporting or storing the product.

2. When hand-carrying the product, cover

over the cutting part, lift up the product and

carry it paying attention to the blade.

3. Secure the unit carefully to prevent

movement when it is transported.

4. A unit that receives a strong shock during

transport and unloading may malfunction.

■ For protecting your body from vibration

WARNING

Prolonged use of the product, exposing

the operater to vibrations and cold may

produce whitefinger disease (Raynaud's

phenomenon), which symptoms are

tingling and burning sensations followed

by loss of color and numbness in the

fingers.

All factors which contribute to whitefinger

disease are not known, but cold weather,

smoking diseases or physical conditions

as well as long periods of exposure to

vibration are mentioned as factors. In

order to reduce the risk of whitefinger

disease, the following precautions are

strongly recommended.

■ Fuel safety

1. Always use caution when handling fuel. It

is highly flammable. Wipe up all spills,

screw the fuel cap back tightly, and then

move the product at least 10 feet (3

meters) from the fueling point before

starting the engine.

2. Eliminate all sources of sparks or flame

(i.e. smoking, open flames, or work that

can cause sparks) in the areas where fuel

is mixed, poured, or stored.

3. Do not smoke while handling fuel or while

operating the product.

4. Do not refuel a hot engine.

5. Do not refuel a running engine.

6. Keep the handles dry, clean and free of oil

or fuel mixture.

a: Keep your body warm. Never use the

product during rains.

7. Always store fuel in an approved container

designed for that purpose.

b: Wear thick anti-vibration gloves.

c: Take more than 5 minutes of break in

warm place frequently.

■ Storage

d: Maintain a firm grip at all times, but do not

squeeze the handles with constant,

excessive pressures.

e: If you feel discomfort, redness and swelling

of your fingers or any other part of your

body, see a doctor before getting worse.

1. Always store the product and fuel so that

there is no risk of leakages or fumes

coming into contact with sparks or naked

flames from electrical equipment, electric

moters, relays/switches, boilers and the

like.

2. When storing the product, the fuel tank

should be emptied.

3. When storing the product, choose a space

indoors free from moisture and out of the

reach of children.

■ Maintenance

1. In order to maintain your product in proper

working order, perform the maintenance

and checking operations described in the

manual at regular intervals.

2. Always be sure to turn off the engine and

disconnect the spark plug before

performing any maintenance or checking

procedures.

■ Avoid noise problem

IMPORTANT

Check and follow the local regulations as to

sound level and hours of operations for the

product.

WARNING

The metallic parts and engine cover reach

high temperatures immediately after

stopping the engine.

1. Operate power equipment only at

reasonable hours not early in the morning

or late at night when people might be

disturbed. Comply with times listed in local

ordinances.

3. Examine the product at intervals for loose

fasteners and rusted or damaged parts.

Use special care around the fuel line, the

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5. For safe operation

muffler, and the ignition wiring.

4. When replacing the any other part, or

any lubricant, always be sure to use

only RedMax products or products

which have been certified by RedMax

for use with the RedMax product.

5. In the event that any part must be

replaced or any maintenance or repair

work not described in this manual must

be performed, please contact a

representative from the store nearest

RedMax authorized servicing dealer for

assistance.

6. Do not use any accessory or

attachment other than those bearing

the RedMax mark and recommended

for the unit.

7. Under no circumstances should you

ever take apart the product or alter it in

any way. Doing so might result in the

product becoming damaged during

operation or the product becoming

unable to operate properly.

■ Disposal

When disposing your machine, fuel or oil

for the machine, be sure to allow your

local regulations.

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6. Set up

■ MOUNTING ENGINE (SE1)

1. Push the driveshaft housing toward the

clutch housing and rotate it by hand to

check that the driveshaft is engaged

with the gears.

2. Insert the driveshaft housing into the

clutch housing until it bottoms, and

align the positioning holes on the clutch

housing and the shaft tube and install

the screw. When difficult to engage,

twist the engine slightly.

10inches (25cm) ahead of the throttle

lever), and secure it by tightening the

knob at the handle base.

SE1

SE5

■ JOINT ATTACHMENT (SE5)

• Insert the attachment to the main shaft.

• Tighten the knob bolt securely.

(1)

(1) Knob bolt

3. Fasten the clamp securely with two

screws.

(BC-EX2 only)

IMPORTANT

■ INSTALLING DEBRIS GUARD

• Put the debris guard on the gear box,

attach it with the screws and hardware

provided. (SE1)

BC-EX2 SE1

Tighten the screws gradually by turns.

■ CONNECTING THROTTLE WIRE

1. Remove the air cleaner cover.

2. Connect the end of the throttle wire to

the joint on the top of the carburetor.

(SE2)

SE2

■ INSTALLING LINE HEAD (SE2)

1. While locking the gear shaft, by

inserting the supplied tool into the

upper holder on the gear box, loosen

and remove the hexagon nut(left-

handed)

BC-EX2 SE2

■ CONNECTING SWITCH WIRES

• Connect the switch wires between the

engine and the main unit. Pair the wires

of the same color.

2. Fit the line head assembly to the gear

shaft over the holders. Hand-tighten it

securely.

■ INSTALLING HANDLE

SE3

(BC-EX2, LRT-EX only) (SE3)

■ BALANCE UNIT

BC-EX2 SE3

• Install the handle to the shaft tube and

clamp it at a location that is comfortable

to you.

1. Put on strap and attach unit to strap.

2. Slide clamp up or down until unit

balances with head just touching on the

ground. (SE3)

(1)

(1) About 19 inches (48 cm)

(RMS-EX only) (SE4)

SE4

1. Remove both screws from the handle.

2. While spreading the handle at the

mounting hole, position the handle on

the outer tube as shown.

(LRT-EX only)

■ ATTACHING THE TRIMMING

MECHANISM (SE1)

3. Reinstall the two mounting screws in

the handle, but do not tighten them at

this time.

1. Remove the screw screwed into the

end of the trimming mechanism.

2. Insert the end of the trimming

mechanism into the main pipe.

3. Line up the hole on the end of the

trimming mechanism into which the

screw is to be inserted with the hole on

the main pipe, and screw the screw

firmly in.

LRT-EX SE1

NOTE

One side of the handle is recessed to

receive the hex nuts.

4. Locate the handle at the best position

for operator comfort (usually about

4. Using a wrench, screw in the bolt

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EXZ2450S-PH

6. Set up

provided to fix the trimming mechanism

into place.

1. Loosen a nut and remove the chain

cover.

2. Mount the guide bar then fit the saw

chain around the bar and sprocket.

(SE3)

PS-EX SE3

(1) Main pipe

(2) Trimming mechanism

(3) Screw hole

(4) Screw

(5) Fastening bolt

WARNING

Pay attention to the correct direction of

the saw chain

■ BALANCE UNIT

1. Put on strap and attach unit to strap.

2. Depending on the working posture,

slide clamp up or down until unit

balances and the strap fits your body.

3. Fit the chain tensioner nut into the

lower hole of the guide bar, then install

the chain cover, and fasten the

mounting nut to finger tightness.

(SE3)(SE4)

PS-EX SE4

(PS-EX only)

(1) Hole

(2) Moving direction

(3) Chain tensioner nut

■ ATTACHING THE PRUNING

MECHANISM (SE1)

1. Remove the cap on the end of the main

pipe.

2. Remove the screw screwed into the

end of the gear case.

3. Insert the end of the gear case into the

main pipe.

4. Adjust the chain tension by turning the

tensioner screw until the tie straps just

touch the bottom side of the bar rail.

(SE5)

PS-EX SE5

PS-EX SE1

(1) Chain tension adjusting screw

(a) Loosen

(b) Tighten

(1)

(2)

4. Line up the hole on the end of the gear

case into which the screw is to be

inserted with the hole on the main pipe,

and screw the screw firmly in.

5. Using a wrench, screw in the bolt

provided to fix the mechanism into

place.

(3)

(4)

(5)

5. Tighten the mounting nut securely with

the bar tip held up (TORQUE: 8.9~11.7

N.m./90~120 kg-cm). Then check the

chain for smooth rotation and correct

tension while moving it by hand. If

necessary, readjustment. (SE6)

PS-EX SE6

(1) Main pipe

(2) Gear case

(3) Screw hole

(4) Fastening bolt

(5) Bolt

(1) Tighten

A standard package contains the items as

shown below. (SE2)

WARNING

PS-EX SE2

It is very important to maintain the

proper chain tension. Rapid wear of

the guide bar or the chain coming off

easily can be caused by improper

tension. Especially when using a new

chain, take good care of it since it

should expand when first used.

(1) Guide bar

(2) Saw chain

(3) Gase case

(4) Sprocket

(5) Chain tension adjust screw

(6) Nut

(7) Chain tensioner nut

(8) Chain cover

■ BALANCE UNIT

1. Put on strap and attach unit to strap.

2. Depending on the working posture,

slide clamp up or down until unit

balances and the strap fits your body.

Install the guide bar and the saw chain on

the gear case as follows.

WARNING

The saw chain has very sharp edges.

Use protective gloves for safety.

US-11

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EXZ2450S-PH

6. Set up

4. Use a cotter pin to secure the drum

assembly on the axle (see inset) . The

cotter pin is designed to fit tightly

against the outboard end of the drum,

so you may need to compress the drum

face slightly during installation.

(HE-EX2 only)

1. Attach the gearbox to the shaft tube as

aligning the positioning holes and

fasten the screw (A). Fasten the clamp

bolt (B) firmly. (SE1)

HE-EX2 SE1

5. Repeat Steps 1-4 to install the

remaining axle and drum assembly.

(A) Screw

(B) Clamp bolt

(B)

(A)

(B) Tightning Torque: 70~130 in-lb

(8~15 N.m)

2. Place the blade between the cutter

holders (A) and (B) while locking the

gear shaft by putting the bar, one of the

tools provided, through the key holes

on the holder(A) and the gearcase. Use

the socket and the screwdriver as

shown in the picture below to tighten

the blade mounting bolt. (SE2)

HE-EX2 SE2

(1) Blade mounting bolt (Left-handed)

(2) Cutter holder (B)

(3) Blade

(4) Bar

(5) Cutter holder (A)

(RMS-EX only)

■ SWEEPER ASSEMBLY (SE1)

1. Push one of the drum axles onto either

of the two gearcase output shafts. If

necessary, rotate the drum axle until

the clevis pin hole in the axle aligns

with the matching hole in the gearcase

output shaft.

RMS-EX SE1

2. Use a clevis pin and hitch pin to secure

the drum axel to the shaft.

3. Slide the recessed end of a sweeper

drum assembly over the assembled

axle, and then push the drum down the

axel until it bottoms at the clevis pin.

(1) Clevis Pin

(2) Hitch Pin

(3) Cotter Pin

(4) Drum Axle

(5) Drum Assembly

IMPORTANT

The two drum assemblies are identical,

but each drum must be installed with its

recessed end facing toward the gearcase.

US-12

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EXZ2450S-PH

7. Fuel and Chain Oil

FUEL

lines or fuel tank of the engine.

WARNING

NOTE

• Gasoline is very flammable. Avoid smoking or bringing any

flame or sparks near fuel. Make sure to stop the engine and

allow it cool before refueling the unit. Select outdoor bare

ground for fueling and move at least 10 feet (3 m) away

from the fueling point before starting the engine.

• Failures caused by operating engines on gasoline with octane

rating lower than 89 are not covered by the RedMax Two-

Stroke engine warranty.

WARNING

• Alternative Fuels (Not Gasoline)

Alternative fuels, such as E-15 (15% ethanol), E-20 (20%

ethanol), E-85 (85% ethanol) are NOT classified as gasoline

and are NOT approved for use in RedMax 2-stroke gasoline

engines. Use of alternative fuels will cause major engine

performance and durability problems such as: improper

clutch engagements, overheating, vapor lock, power loss,

lubrication deficiency, deterioration of fuel lines, gaskets

and internal carburetor components, etc... Alternative fuels

cause high moisture absorption into the fuel/oil mixture

leading to oil and fuel separation.

■ GASOLINE REQUIREMENTS

• All 2-Stroke RedMax Products are powered by RedMax

Professional-Commercial Duty, Hi-Performance, Hi-RPM, Air

Cooled 2-Stroke engines.

RedMax – Hi-Performance 2-stroke engines produce higher HP

outputs as compared to standard Home Owner Duty or Light

Commercial Duty production engines offered by most

manufacturers.

• Exhaust emission are controlled by the fundamental engine

parameters and components (eq., carburation, ignition timing

and port timing) without addition of any major hardware or the

introduction of an inert material during combustion.

• The RedMax Engines are registered and certified with CARB

(California Air Resources Board) and EPA (Environmental

Protection Agency) to operate on CLEAN Mid-grade 89 octane

or Premium, unleaded (lead-free) gasoline and RedMax Air-

Cooled "Max Life", Synthetic blend Premium two-stroke engine

oil mixed at 50:1 ratio.

■ OIL REQUIREMENTS

• Use only RedMax "Max Life", Synthetic blend Premium Air-

Cooled two-stroke engine oil or oil certified to ISO-L-EGD

(ISO/CD1378) standard AND one that is JASO-FD registered.

RedMax Air-Cooled "Max Life", Synthetic blend Premium two

stroke engine oil and ISO-L-EGD (ISO/CD1378) AND JASO-FD

oils are fully compatible with gasoline's containing 10% Ethanol.

RedMax Air-Cooled "Max Life", Synthetic blend Premium two

stroke engine oil and ISO-L-EGD (ISO/CD1378) AND JASO-FD

oils are Universal and should be mixed at 50:1 ratio for all 2

stroke air cooled engines sold in the past regardless of mixing

ratios specified in those manuals.

• Unleaded gasoline is recommended to reduce the

contamination of the air for the sake of your health and the

environment.

• If the oil is registered with JASO, the JASO Logo with FD and

registration number will be displayed on the container. The

highest JASO rating is "FD", which equals the ISO-L-EGD

rating. Lower ratings are "FC", "FB", and "FA".

• This Hi-Performance Air Cooled 2-stroke Engine requires the

[ R+M ]

use of Minimum 89 Octane

(Mid grade or Premium)

clean gasoline. Gasoline may contain maximum of 10% Ethanol

(grain alcohol) or up to 15% MTBE (Methyl tertiary-butyl ether).

Gasoline containing Methanol (Wood Alcohol) is NOT

approved.

NOTE

• Engine problems due to inadequate lubrication caused by

failure to use ISO-L-EGD certified and JASO FD registered oil

such as "MaxLife", RedMax Synthetic blend Premium 2-stroke

oil WILL VOID THE REDMAX TWO-STROKE ENGINE

WARRANTY.

• IF octane rating of the Mid Grade gasoline in your area is lower

than 89 Octane use Premium Unleaded Gasoline. The majority

of all 2-stroke engine manufacturers in the USA and Canada

recommend using gasoline with 89 Octane or higher.

WARNING

• Gasoline with an octane rating lower than 89 will greatly

increase the engines operating temperature. Low octane

gasoline will cause detonation (knock) resulting in piston

seizures and major internal engine components damage.

• Poor quality gasolines or oils may damage sealing rings, fuel

• Do not use NMMA (National Marine Manufacturers

Association), BIA (Boating Industry Association), and TCW (two

cycle water cooled) oils designed for MoPeds or Outboard,

water cooled Marine Engines. Do not use API (American

Petroleum Institute), TC (Two Cycle) labeled oils. The API-TC

US-13

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EXZ2450S-PH

7. Fuel and Chain Oil

test standard has been discontinued by API in 1995 and it no

longer exists.

WARNING

1. Select flat and bare ground for fueling.

2. Move at least 10 feet (3 meters) away from the fueling point

before starting the engine.

3. Stop the engine before refueling the unit. At that time, be

sure to sufficiently agitate the mixed gasoline in the

container.

IMPORTANT

• Gasoline/Oil mixture Storage Recommendations

Store your gasoline or gasoline/oil mixture in a cool dry area in

a tightly sealed approved container to limit the entry of moisture

and additional air (oxygen). Moisture and air cause the

development of varnish and gum, making the fuel stale. Stored

gasoline and gasoline/oil mixture ages and loses its octane

rating and volatility. Do not mix more gasoline/oil than you

intend to use in 30 days, and 60 days when fuel stabilizer is

added. RedMax Air-Cooled "Max Life" Synthetic blend

Premium two-stroke engine oil "Contains fuel stabilizer" and

will automatically extend your gasoline/oil mixture life up to 60

days.

■ FOR YOUR ENGINE LIFE, AVOID

1. FUEL WITH NO OIL (RAW GASOLINE) – It will cause severe

damage to the internal engine parts very quickly.

2. GASOHOL – It can cause deterioration of rubber and/or plastic

parts and disruption of engine lubrication.

3. OIL FOR 4-CYCLE ENGINE USE – It can cause spark plug

fouling, exhaust port blocking, or piston ring seizure.

4. Mixed fuels which have been left unused for a period of

one month or more may clog the carburetor and result in the

engine failing to operate properly.

5. In the case of storing the product for a long period of time,

clean the fuel tank after rendering it empty. Next, Start the

engine and run the carburetor dry residual fuel.

6. In the case of scrapping the used mixed oil container, scrap it

only at an authorized depository site.

■ HOW TO MIX FUEL

RECOMMENDED MIXING RATIO

GASOLINE 50 : OIL 1

(when using RedMax Air-Cooled "Max

Life")

50:1 MIXING CHART

NOTE

GASOLINE

gal.

• As for details of quality assurance, read the description in the

section Limited Warranty carefully. Moreover, normal wear and

change in product with no functional influence are not covered

by the warranty. Also, be careful that, if the usage in the

instruction manual is not observed as to the mixed gasoline,

type of oil or fuel to be used. described therein, it may not be

covered by the warranty.

2-CYCLE OIL fl.oz

2.6

5.2

7.8 10.4 13

GASOLINE

liter

2-CYCLE OIL

100

WARNING

(PS-EX only)

■ CHAIN OIL

• Pay attention to agitation.

Use motor oil SAE #10W-30 all year round or SAE #30 ~ #40 in

summer and SAE #20 in winter.

1. Measure out the quantities of gasoline and oil to be mixed.

2. Put some of the gasoline into a clean, approved fuel container.

3. Pour in all of the oil and agitate well for 10seconds.

4. Pour in the rest of gasoline and agitate again for at least one

minute. As some oils may be difficult to agitate depending on oil

ingredients, sufficient agitation is necessary. Be careful that, if

the agitation is insufficient, there is an increased danger of early

piston seizure due to abnormally lean mixture.

5. Place a clear indication on the outside of the container to avoid

mixing up with gasoline or other containers that dont contain oil.

6. Indicate the contents on outside of container for easy

identification.

NOTE

Do not use wasted or regenerated oil that can cause damage to

the oil pump.

■ FUELING THE UNIT

1. Untwist and remove the fuel cap. Rest the cap on a clean

surface.

2. Put fuel into the fuel tank to 80% of the full capacity.

3. Fasten the fuel cap securely and wipe up any fuel spillage

around the unit.

US-14

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EXZ2450S-PH

8. Operation

4. Move the choke lever to the closed

position. (OP4)

(HE-EX2 only)

OP4

The RedMax stick edger is designed for

edging lawn in gardens, parks, roadsides

and so on.

Before starting the engine, take the

operating position and adjust the handle

position and the wheel height as

necessary.

(1)

(1) choke lever

(2) close

(3) open

(2)

(3)

5. Set the stop switch to the "RUN"

position. Place the unit on a flat, firm

place. Keep the cutting head clear of

everything around it. (OP5)

OP5

(2)

ADJUSTING WHEEL HEIGHT

1. Loosen the wing nut and change the

wheel height to obtain desired cutting

depth. (OP1)

(3)

(a)

OP1

(1) stop switch

(2) RUN

(3) STOP

(1)

(2)

(1)

(1) Deep cut

(2) Shallow cut

(3) Wing nut

(3)

(a) lockout lever

(b) throttle trigger

2. After adjusting the height, tighten the

wing nut securely.

(b)

6. Firmly grasp (a) and (b) with left hand,

pull the starter knob quickly until engine

fires. (OP6)

OP6

Tightening Torque:

51~68 in-lbs (6~8 N.m)

IMPORTANT

WARNING

• Avoid pulling the rope to its end or

returning it by releasing the knob. Such

actions can cause starter failures.

Never adjust wheel height with the

engine running.

7. Move the choke lever downward to

open the choke. And restart engine.

(OP4)

■ STARTING ENGINE

8. Allow the engine to warm up for several

minutes before starting operation.

WARNING

The cutting head will start rotating

upon the engine starts.

NOTE

1. When restarting the engine

immediately after stopping it, leave the

choke open.

2. Overchoking can make the engine hard

to start due to excess fuel. When the

engine failed to start after several

attempts, open the choke and repeat

pulling the rope, or remove the spark

plug and dry it.

1. Feed fuel into the fuel tank and tighten

the cap securely. (OP2)(1)

(PS-EX only) Feed the chain oil into

the oil tank and tighten the cap

securely, too. (OP2)(2)

OP2

(1) Fuel

(2) Chain oil

2. Rest the unit on a flat, firm place. Keep

the cutting head off the ground and

clear of surrounding objects as it will

start rotating upon starting of the

engine.

■ STOPPING ENGINE (OP5)

1. Release the throttle lever and run the

engine for a half minute.

2. Shift the stop switch to the "STOP"

position.

OP3

3. Push the primer pump several times

until overflown fuel flows out in the

clear tube. (OP3)

IMPORTANT

• Except for an emergency, avoid

stopping the engine while pulling the

throttle lever.

US-15

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EXZ2450S-PH

8. Operation

■ ADJUSTING THROTTLE CABLE

• The normal play is 1 or 2mm when

measured at the carburetor side end.

Readjust with the cable adjuster as

required. (OP7)

slower action than will light growth.

4. Never swing the unit so hard as you

are in danger of losing your balance or

control of the unit.

5. Try to control the cutting motion with

the hip rather than placing the full

workload on the arm and hands.

6. Take precautions to avoid wire, grass

and dead, dry, long-stem weeds from

wrapping around the head shaft. Such

materials can stall the head and cause

the clutch to slip, resulting in damage to

the clutch system if repeated

OP7

.04 in

(1~2mm)

(1)

(1) cable adjuster

■ ADJUSTING IDLING SPEED (OP8)

1. When the engine tends stop frequently

at idling mode, turn the adjusting screw

clockwise.

OP8

2. When the cutting head keeps rotating

after releasing the trigger, turn the

adjusting screw counter-clockwise.

frequently.

ADJUSTING THE LINE LENGTH

• Your brushcutters is equipped with a

semi- auto type nylon line head that

allows the operator to advance the line

without stopping the engine. When the

line becomes short, lightly tap the head

on the ground while running the engine

at full throttle.

(1)

(1) idle adjusting screw

NOTE

• Warm up the engine before adjusting

the idling speed.

• Each time the head is bumped, the line

advance about 1 inch(25.4 mm). For

better effect, tap the head on bear

ground or hard soil. Avoid bumping in

thick, tall grass as the engine may stall

by overload.

(BC-EX2 only)

■ CUTTING WORK (LINE HEAD

USAGE)

WARNING

1. Always wear eye protection such as

safety goggles. Never lean over the

rotating cutting head. Rocks or other

debris could be thrown into eyes

and face and cause serious personal

injury.

2. Keep the debris guard in place at all

times when the unit is operated.

TRIMMING GRASS AND WEEDS

• Always remember that the TIP of the

line does cutting. You will achieve

better results by not crowding the line

into the cutting area. Allow the unit to

trim at its own pace.

1. Hold the unit so the head is off the

ground and is tilted about 20 degrees

toward the sweep direction. (OP9)

2. You can avoid thrown debris by

sweeping from your left to the right.

3. Use a slow, deliberate action to cut

heavy growth. The rate of cutting

motion will depend on the material

being cut. Heavy growth will require

OP9

US-16

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EXZ2450S-PH

8. Operation (BC-EX2 only) Optional blade usage

OPT1

WARNING

• For security reason, in case of

mounting the blade on this product

and use it, purchase the blade kit

(T3195-94000) and change guard,

handle from the original ones, and

use shoulder strap.

• When sharpening, removing, or reattaching the blade, be

sure to wear thick, sturdy gloves and use only proper tools

and equipment to prevent injury.

■ CHOOSE THE BLADE

Choose a suitable recommended cutting attachment according to

the object to be cut. (OPT4)

(1) Shoulder strap : T3300-17100

• When replacing blade always be sure to use products which

have been certified by RedMax.

(1)

(2)

(3)

(4)

(5)

(6)

OPT4

(7)

OPT2

IMPORTANT

Change to the debris guard which is

suitable for the metal blade. (OPT2)

(A)

(B)

(C)

TIGHTENING TORQUE :

130~174 in-lbs

(14.7~19.6 N.m.)

(D)

(1) Guard-A : 5764-24000

(2) Guard :

5766-24110

(3) Bracket : 3250-24120

(4) Bolt :

(5) Screw :

(6) Nut :

0225-10620

0263-30614

0280-10605

(1) 9” 22-tooth : SST229

(2) 9” 24-tooth : SST249

(3) 8” 8-tooth : SGB088

(4) 9” 8-tooth : SGB089

(5) 8” 4-tooth : SGB048

(6) 9” 4-tooth : SGB049

(7) Nylon line head

(A) Under growth

OPT3

IMPORTANT

(B) Heavy weeds

Change the loop handle to the J-handle

for safe operation. (OPT3)

(D) Grass

(1) Bracket : 3583-14101

(2) J-handle : 6367-14200

■ SET UP THE BLADE

OPT5

1. Detach the line head assembly. (OPT5)

2. Put on the blade, making the marked

side face the shaft side, put the holder

and the cover on, and fasten the blade

with the nut. (OPT5)

(3)

(1)

(2)

(1) Cover : 3540-13283

(2) Holder (B) : 6019-13250 (STANDARD)

(3) Nut : T3002-13260 (STANDARD)

OPT6

■ BALANCE UNIT

1. Put on strap and attach unit to strap.

2. Slide clamp up or down until unit

balances with head just touching on the

ground. (OPT6)

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EXZ2450S-PH

8. Operation (BC-EX2 only) Optional blade usage

■ STARTING THE ENGINE

Please refer 5.For safe operation (P.7),

8.Operation (P.15).

• Make sure that the blade is not bent,

warped, cracked, broken or

damaged.

• If you find any error to the blade,

discard it and change new one

which is certified by RedMax.

WARNING

• The product is equipped with a

centrifugal clutch mechanism, so

the cutting attachment could rotate

as soon as the engine is started.

When starting the engine, place the

product onto the ground in a flat

clear area and hold it firmly in place

so as to ensure that neither the

cutting part nor the throttle come

into contact with any obstacle when

the engine starts. (OPT7)

■ By using the shoulder strap, hang the

unit on your right side. Adjust the strap

length so that the cutting head may

become parallel to the ground.

(OPT10)

OPT10

OPT7

WARNING

Make sure to use shoulder strap and

debris guard. If not, it is very

dangerous when you slip or lose your

balance.

■ CUTTING METHOD

a) Use the front left side cutting.

b) Guide the blade from your right to left

with it tilted slightly to your left. (OPT8)

c) When mowing a wide area, start

working from your left end to avoid

interference of cut grass.

d) The blade may be seized by weeds if

the engine speed is too low, or the

blade cuts too deep into weeds. Adjust

the engine speed and cutting depth

according to the condition of object.

OPT8

WARNING

■ CONTROLLING BLADE THRUST

• Blade thrust can cause serious

personal injury. Carefully study this

section. It is important that you

understand what causes blade thrust,

how you can reduce the chance of

blade thrust and how you can remain in

control of the unit if blade thrust does

occur.

WARNING

1. What causes blade thrust:

• If the grass or other object gets

caught in the blade, or if the unit

starts to shake or vibrate, turn off

the engine and check the whole unit.

Change the blade if it has been

damaged.

• Turn off the engine and make sure

the blade has completely stop

before checking the blade, and

removing any object got caught in.

• Blade thrust can occur when the

moving blade contacts an object that it

cannot cut. This contact causes the

blade to stop for an instant and then

suddenly move or ”bounce” away from

the object that was hit. The operator

can lose control of the unit and the

blade can cause serious personal injury

to the operator or any person nearby if

the blade contacts any part of the body.

■ OPERATION

2. How you can reduce the chance of blade

thrust:

1. Check the bolt to fasten the blade and

be sure the bolt has no fault, and no

abrasion.

2. Be sure that the blade and the holder

have been fastened according to

instruction and the blade turns

smoothly without abnormal noise.

(OPT9)

OPT9

a. Recognize that blade thrust can

happen. By understanding and

knowing about bounce, you can

help eliminate the element of

surprise.

b. Cut fibrous weeds and grass

only. Do not let the blade contact

materials it cannot cut such as hard,

woody vines and brush or rocks,

fences, metal, etc

WARNING

• The rotating parts fastened

incorrectly may cause serious

accident to the operator.

c. Be extra prepared for blade thrust if

you must cut where you cannot see

the blade making contact such as in

US-18

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EXZ2450S-PH

8. Operation (BC-EX2 only) Optional blade usage

areas of dense growth.

■ MAINTENANCE

d. Keep the blade sharp. A dull blade

increase the chance of blade thrust.

e. Avoid feeding the blade too rapidly.

The blade can bounce away from

material being cut if the blade is fed

faster than its cutting capability.

f. Cut only from your right to your left.

g. Keep your path of advance clear of

material that has been cut and other

debris.

BLADE

• Check the blade and the fasteners for looseness, cracking, or

bending.

• Check the cutting edges and reform with a flat file.

OPT11

3. How you can maintain the best

control:

a. Keep a good, firm grip on the unit

with both hands. A firm grip can

help neutralize bounce. Keep your

right and left hands completely

around the respective handles.

b. Keep both feet spread apart in a

comfortable stance and yet braced

for the possibility that the unit could

bounce. Do not overreach. Keep

firm footing and balance.

(A) 22, 24-tooth blade

(B) 8-tooth blade

Point (OPT11) :

1. Keep the end corner sharp.

2. Round the root of the edge, using round file.

3. Do not use water when using a grinder.

IMPORTANT

• It is recommended that filing should be done by professionals.

• Especially regarding filing the 22,24-tooth blade, Leave it to the

professionals.

■ TRANSPORTING THE UNIT

• When you finish cutting in one location and wish to continue

work in another spot, turn off the engine, and lift up the unit and

carry it paying attention for the blade.

• Never forget to place the protective cover over the blades.

• When transporting the unit over long distances, detach the

blade fix the unit by ropes.

US-19

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EXZ2450S-PH

8. Operation

(1) Clamp lever

(2) Trimming mechanism

(3) Tighten

(LRT-EX only)

WARNING

(4) Loosen

This product is equipped with

extremely sharp blades, and when

used improperly these blades can be

extremely dangerous, and improper

handling can cause accidents which

may in turn lead to serious injury or

death. For this reason, you should

always be careful to follow the

following instructions when using your

trimmer.

(PS-EX only)

■ CHECKING OIL SUPPLY

After starting the engine, run the chain at

medium speed and see if chain oil is

scattered off as shown in the figure.

(OP1)

PS-EX OP1

(1) Chain oil

• Never hold the trimmer in a way in

which the blades are pointed towards

someone else.

NOTE

• Never allow the blades to come into

proximity with your body while the

engine of the trimmer is in operation.

• Always be sure to turn off the engine

before changing the angle of the

blades, removing branches which

have become stuck in the blades, or

at any other time when coming into

close proximity with the blades.

• Always wear work gloves made of

leather or some other sturdy material

when using the trimmer.

The oil reservoir has a capacity sufficient

to provide about 40 minutes of cutting

time (when set to deliver the minimum

flow rate, or about as long as you'll get

from a tank of fuel). Be sure to refill the oil

tank every time when refueling the saw.

■ ADJUSTING OIL FLOW RATE

WARNING

Never fill the oil reservoir nor adjust

the oiler with the engine running.

• Always place the blade cover

provided with the trimmer over the

blades when not in use.

IMPORTANT

• Falling branches may fall onto the

face or into the eyes, resulting in

injuries, scratches, and cuts, and

for this reason you should always

be sure to wear a helmet and face

protector when using your

An increase in bar oil flow rate will speed

oil consumption, requiring more frequent

checks on the oil reservoir. To ensure

sufficient lubrication, It may be necessary

to check the oil level more frequently than

at fuel tank refills.

trimmer.

IMPORTANT

The guide bar and chain are lubricated

automatically by a pump that operates

whenever the chain rotates. The pump is

set at the factory to deliver a minimum

flow rate, but it can be adjusted in the

field. A temporary increase in oil flow is

often desirable when cutting things like

hardwood or wood with a lot of pitch.

The thickness of branches which may

be cut using this trimmer is limited to

up to approximately 3/16" (5mm).

Never try to cut branches thicker than

this, as doing so may result in damage

to the trimmer.

LRT-EX OP1

PS-EX OP2

■ ADJUSTING THE ANGLE OF THE

CUTTING BLADES (OP1)

Adjust the pump as follows:

1. Stop the engine and make sure the

stop switch is in the OFF position.

2. Place the unit on its side with the oil

reservoir up. (OP2)

1. Stop the engine.

2. Turn the bolt located on the top of the

trimming mechanism counter-clockwise

to loosen it.

3. Adjust the angle of the blades to the

desired angle, and then fix the bolt

firmly back into place.

(1) Oil tank

(2) Chain cover

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8. Operation

3. When starting to edge, run the engine

at full throttle, and slowly have the

blade cut into the edge groove.

IMPORTANT

The oil flow adjusting screw must be

pressed in slightly in order to turn. Failure

to do so could damage the pump and

screw.

(1) Direction of rotation

NOTE

3. With a screwdriver, push in on the oil

flow rate adjusting screw and turn in

the desired direction (there are three

incremental settings):

• Before edging, make sure the area is

soft enough so the blade does not bog

down.

• Do not move the edger into the work so

fast that the engine or blade bogs

down.

(a) Clockwise-decrease lubrication.

(b) Counter clockwise-increase

lubrication.

(RMS-EX only)

■ BREAK-IN OPERATION

WARNING

The Properly Dressed Operator (OP1)

(1) ALWAYS wear hearing protective

devices.

• Always wear work gloves made of

leather or some other sturdy

RMS-EX OP1

(2) ALWAYS wear eye protection such as

goggles or safety glasses.

(3) ALWAYS wear a mask to protect

against dust or other airborne

particles.

(4) ALWAYS wear close fitting clothes.

Gloves offer added protection and are

strongly recommended. Do not wear

clothing or jewelry that could get

caught in machinery.

material when using the polesaw.

• Falling branches may fall onto the

face or into the eyes, resulting in

injuries, scratches, and cuts, and for

this reason you should always be

sure to wear a helmet and face

protector when using your polesaw.

(HE-EX2 only)

(5) ALWAYS wear leather or heavy-

rubber shoes. NEVER work

barefooted!

(6) BEWARE of thrown debris!

(7) DIRECTION OF ROTATION

WARNING

• Always wear eye protection such as

safety goggles. Never lean over the

rotating cutting head. Rocks or other

debris could be thrown into eyes

and face and cause serious personal

injury.

• Keep the blade guard and the mad

guard attached in place at all times

when the unit is operated.

• Before starting a job, check the area

and remove all obstacles and

objects that could be thrown by the

blade.

• Do not adjust the wheel height or try

to remove anything entangled to the

blade with the engine running.

• The RedMax Sweeper works best

when its rubber fins can quickly slide or

"skim" over the surface being swept.

• New or replacement sweeper belts

tend to grip or drag on hard surfaces,

and should be thoroughly broken in or

"scuffed" before the broom is actually

put to work.

• Break-in is easily accomplished by

operating the RedMax Sweeper at full

throttle for 3 to 5 minutes in loose

gravel or similar abrasive material.

Once broken in, a RedMax Sweeper

will effortlessly move an amazing

variety of materials, ranging from snow

or standing water to heavier objects

such as wood chips or gravel.

HE-EX2 OP1

1. Before starting the engine, adjust the

wheel height for desired cutting depth

(See page 15).

2. Before starting a job, plan your

direction of travel so that you can

always hold the edger on you right side

and can walk on a hard surface as

much as possible.

• Experience will help you understand

the operating principles of the RedMax

Sweeper, but safe operation must be

practiced from the start.

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8. Operation

■ OPERATING TECHNIQUES

(OP2)(OP3)(OP4)

loss of control of the machine.

RMS-EX OP5

Operate the RedMax Sweeper at or near

full throttle with its sweeper fins resting on

the work surface.

(1) Maintain a shallow working angle.

(2) A steep working angle risks loss of

control!

The sweeper belts may rotate when the

RedMax Sweeper is started!

• Always maintain a firm grip when

starting the RedMax Sweeper. Beware

of objects that could become entangled

in or be thrown by the rotating sweeper

belts.

NOTE

• It is both tiring and unnecessary to lift

or hold the fins from the work surface

during sweeping.

RMS-EX OP2

• When sweeping narrow areas such as

sidewalks, the RedMax Sweeper can

be used to throw material directly

ahead of the operator. Clearing wider

areas may require sweeping at an

angle to create windrows to one side of

the path being cleared.

• Windrows of lighter materials often can

be combined into one main row or pile

for eventual pickup, while heavy or

bulky material may need to be collected

row-by-row.

• To pull debris from corners, reverse

sweeper drum rotation by turning the

powerhead over (throttle facing "up") .

• Sweeping corners with the RedMax

Sweeper upside down. (OP3)

YOU MUST ALWAYS GUARD AGAINST

THROWN DEBRIS!

• Although the RedMax Sweeper’s

sweeper belts are less forceful than a

lawnmower blade, you must avoid any

operation where thrown objects could

pose a threat to persons or property!

RMS-EX OP3

Never operate the RedMax Sweeper if

any protective devices (engine covers,

stop switch, etc.) are missing or

damaged!

Never operate the engine at high rpms

without a load!

• Doing so could damage the engine.

(1) Direction of rotation

Avoid low rpm operation

• Continuous low-rpm operation can lead

to premature clutch failure.

• For long-term inverted operation,

loosen the adjustment knob to reverse

the handle. (OP4)

RMS-EX OP4

■ GENERAL SAFETY INSTRUCTIONS

Work Safely

(1) Adjustment Knob

The operator or bystanders can be injured

if the RedMax Sweeper is misused or

abused. Never allow a person without

training or instruction to operate your

machine.

WARNING

Reversing the RedMax Sweeper will

cause debris to be thrown back toward

the operator. When reversing the

RedMax Sweeper, use lower throttle

settings and beware that thrown debris

may also affect your footing!

WARNING

Never make unauthorized attachment

installations.

Stay Alert

■ OPERATING AND SAFETY TIPS

(OP5)

You must be physically and mentally fit to

operate this machine safely.

WARNING

Maintain a shallow angle to the work

surface!

• A high angle of operation tends to

propel the broom toward you, risking

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9. Maintenance

Maintenance, replacement, or repair of the emission control device and systems may be performed by any

non-road engine repair establishment or individual.

■ MAINTENANCE CHART

every every every

before hours hours hours note

100

system/compornent

procedure

use

✔

after

fuel leaks, fuel spillage

wipe out

fuel tank, air filter, fuel filter

inspect/clean

✔

replace, if necessary

see ■ADJUSTING

IDLING SPEED (p.16)

replace carburetor

if necessary

idle adjusting screw

✔

clean and readjust

plug gap

GAP: .025in(0.6~0.7mm)

replace, if necessary

spark plug

✔

cylinder fins, intake air cooling vent

clean

✔

muffler, spark arrester, cylinder exhaust port clean

✔

throttle lever, ignition switch

check operation

✔

replace if

something's wrong

BC-EX2, LRT-EX,

HE-EX2

cutting parts

debris guard

gear case

make sure to attach

grease

BC-EX2, HE-EX2

screws/nuts/bolts

oiling port

tighten/replace

clean

✔

not adjusting screws

PS-EX only

guide bar

clean

PS-EX only

sprocket

inspect/replace

inspect/sharp

✔

PS-EX only

saw chain

✔

PS-EX only

replace if

something's wrong

sweeper unit

RMS-EX only

■ SPARK PLUG

WARNING

• Starting failure and mis-firing are often

caused by a fouled spark plug. Clean

the spark plug and check that the plug

gap is in the correct range. For a

replacement plug, use the correct type

specified by RedMax. (MA3)

MA3

• Make sure that the engine has

stopped and is cool before

performing any service to the

machine. Contact with moving

cutting head or hot muffler may

result in a personal injury.

.025 in

0.655mm

• REPLACEMENT PLUG IS A NGK

CMR7H.

■ AIR FILTER

MA1

• The air filter, if clogged, will reduce the

engine performance. Check and clean

the filter element. If the element is

broken or clogged, replace with a new

one. (MA1)

IMPORTANT

• Note that using any spark plug other

than those designated may result in the

engine failing to operate properly or in

the engine becoming overheated and

damaged.

(1)

(1) air filter

• To install the spark plug, first turn the

plug until it is finger tight, then tighten it

a quarter turn more with a socket

wrench.

■ FUEL FILTER

MA2

• When the engine runs short of fuel

supply, check the fuel cap and the fuel

filter for blockage. (MA2)

TIGHTENING TORQUE:

87~104 in-lbs

(1) fuel filter

(9.8~11.8 N.m.)

(1)

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EXZ2450S-PH

9. Maintenance

■ MUFFLER

engine cover shown in (MA5) in order

to be able to view the upper part of the

cylinder.

WARNING

• Inspect periodically, the muffler for

loose fasteners, any damage or

corrosion. If any sign of exhaust

leakage is found, stop using the

machine and have it repaired

immediately.

IMPORTANT

• If waste gets stuck and causes

MA5

blockage around the intake air cooling

vent or between the cylinder fins, it may

cause the engine to overheat, and that

in turn may cause mechanical failure

on the part of the brushcutter. (MA5)

(1)

• Note that failing to do so may result

in the engine catching on fire.

■ SPARK ARRESTER

(1) cylinder

(2)

• The muffler is equipped with a spark

arrester to prevent red hot carbon from

flying out of the exhaust outlet.

Periodically inspect and clean as

necessary with a wire brush.

(2) intake air cooling vent (back)

■ PROCEDURES TO BE PERFORMED

AFTER EVERY 100 HOURS OF USE

1. Remove the muffler, insert a

MA6

MA4

In the State of California it is required

by law (Section 4442 of the California

Public Resources Code) to equip a

spark arrester when a gas powered tool

is used in any forest covered, brush

covered, or grass covered unimproved

land. (MA4)

screwdriver into the vent, and wipe

away any carbon buildup. Wipe away

any carbon buildup on the muffler

exhaust vent and cylinder exhaust port

at the same time.

2. Tighten all screws, bolts, and fittings.

3. Check to see if any oil or grease has

worked its way in between the clutch

lining and drum, and if it has wipe it

away using oil-free, lead-free gasoline.

(1)

(1) spark arrester

■ INTAKE AIR COOLING VENT

WARNING

• Never touch the cylinder, muffler, or

spark plugs with your bare hands

immediately after stopping the

engine. The engine can become

very hot when in operation, and

doing so could result in severe

burns.

• When checking the machine to make

sure that it is okay before using it,

check the area around the muffler

and remove any wood chips or

leaves which have attached

themselves to the brushcutter.

Failing to do so could cause the

muffler to become overheated, and

that this in turn could cause the

engine to catch on fire. Always

make sure that the muffler is clean

and free of wood chips, leaves, and

other waste before use.

• Check the intake air cooling vent and

the area around the cylinder cooling

fins after every 25 hours of use for

blockage, and remove any waste which

has attached itself to the brushcutter.

Note that it is necessary to remove the

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EXZ2450S-PH

9. Maintenance

(LRT-EX only)

WARNING

■ BLADES (MA1)

Make sure that the engine has stopped and is cool before

performing any service to the unit. Contact with any moving

parts, the cutting head or a hot muffler may result in personal

injury.

• When refilling the tank or resting, it is

often a good idea to use the time to oil

the cutting blades.

• If a gap exists between the upper and

lower blades, follow the procedure

below to adjust them so that they fit

more closely together.

(BC-EX2 only)

BC-EX2 MA1

■ REFILLING TRIMMING LINE (MA1)

1. Loosen lock nut (A) as shown in the

diagram.

LRT-EX MA1

WARNING

2. Tighten screw (B) fully, and then turn

one-third to one-half of a rotation

backward.

For safety reasons, do not use

metalreinforced line.

3. While holding onto the screw to keep

it in position, tighten the lock nut.

4. Check to make sure that the flat

washer (C) is loose enough so that it

may be turned by pressing on it with

a finger.

1. For replacement line, use a diameter of

.095in (2.4mm). The spool is capable

for a line up to 20feet (6m) on the 4”

head. Avoid using a larger line as it

may cut down the trimming

performance.

2. Pinch the slotted area on the both sides

of the spool housing to unhook the

bottom cap.

(1) Upper blade

(2) Lower blade

3. Take out the spool and pull off the old

line. Fold new line so that one half line

is 4.7in.(12cm) shorter than another

half. And then, hook bended end in the

slot of the spool.

NOTE

Screwing in the screw too tightly may

make it impossible for the blades to move.

Conversely, not screwing in the screw

tightly enough may make the blades of

the trimmer feel dull and cause leaves

and branches to become caught in the

blades of the trimmer.

4. Wind up the line in the correct direction

as indicated on the spool.

5. Hook each end of the line in the slot on

the edge of the spool, and then put the

ends through the eyelets on the

housing. Make sure that the spring and

the washers are in place.

QUICK TIP

If the blades become so worn down that it

is no longer possible to eliminate the gap

between them, you should contact the

authorized RedMax servicing dealer from

which you purchased your RedMax

trimmer to have the blades resharpened

or replaced.

6. While holding the spool against the

housing, pull the line ends to release

them from the slot.

7. Line up the slot on the bottom cap with

the hook on the housing, press the cap

against the housing until it clicks.

■ GEAR CASE

The reduction gears are lubricated by

multipurpose, lithium-based grease in the

gearcase.

Supply new grease every 25 hours of use

or more often depending on the job

condition.

When adding lubricant, use a grease gun

to insert lubricant into the three grease

nipples located on the gear case. (MA2)

LRT-EX MA2

■ GEAR CASE (MA2)

BC-EX2 MA2

• The reduction gears are lubricated by

multipurpose, lithium-based grease in

the gear case. Supply new grease

every 25 hours of use or more often

depending on the job condition.

• Remove the side bolt in gear case

opposite of grease nipple before

installing new grease to arrange for old

grease to exit.

(1) Grease fitting

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9. Maintenance

Cutter setting standards:

(PS-EX only)

PS-EX MA6

■ OILING PORT

PS-EX MA1

WARNING

(1)

Dismount the guide bar and check the

oiling port for clogging. (MA1)

Be sure to wear safety gloves.

(1) Oiling port

Before filing:

• Make sure the saw chain is held

securely.

• Make sure the engine is stopped.

• Use a round file of proper size for your

chain.

■ GUIDE BAR

Remove sawdust in the bar groove and

the oiling port. (MA2)

PS-EX MA2

Chain type : 90SG

(1) Groove

(2) Oiling port

File size :

5/32 in (4.0mm)

Place your file on the cutter and push

straight forward. Keep the file position as

illustrated. (MA6)

PS-EX MA3

(Type: Sprocket nose)

Grease the nose sprocket from the

feeding port on the tip of the bar. (MA3)

After every cutter has been set, check the

depth gauge and file it to the proper level

as illustrated. (MA7)

PS-EX MA7

(1) Grease port

(2) Sprocket

WARNING

The bar rail should always be a square.

Check for wear of the bar rail. Apply a

ruler to the bar and the outside of a cutter.

If a gap is observed between them, the

rail is normal. Otherwise, the bar rail is

worn. Such a bar needs to be corrected or

replaced.(MA4)

PS-EX MA4

Be sure to round off the front edge to

reduce the chance of kickback or tie-

strap breakage.

(1) Appropriate gauge checker

(2) Make the shoulder round

(3) Depth gauge standard

(1) Ruler

(2) Gap

(3) No gap

(4) Chain tilts

PS-EX MA8

Make sure every cutter has the same

length and edge angles as illustrated.

(MA8)

■ SPROCKET

PS-EX MA5

Check for extensive wear, and replace it

when the teeth are worn over 0.3mm.

(MA5)

(4) Cutter length

(5) Filing angle

(6) Side plate angle

(7) Top plate cutting angle

(1) Sprocket

■ SAW CHAIN

WARNING

■ GEAR CASE

The reduction gears are lubricated by

multipurpose, lithium-based grease in the

gearcase.

Supply new grease every 25 hours of use

or more often depending on the job

condition.

When adding lubricant, use a grease gun

to insert lubricant into the three grease

nipples located on the gear case. (MA9)

It is very important for smooth and

safe operation to keep the cutters

always sharp.

PS-EX MA9

Your cutters need to be sharpened when:

• Sawdust becomes powder-like.

• You need extra force to saw in.

• The cut way does not go straight.

• Vibration increases.

• Fuel consumption increases.

(1) Grease fitting

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9. Maintenance

3. Place the RedMax Sweeper main gear

flat. Refill the gearcase with Mobil SHC

634 Synthetic Gear Oil to the top of the

main gear (60ml – 1.80zs), as shown.

DO NOT OVERFILL! (MA1)

(HE-EX2 only)

RMS-EX MA1

■ GEAR CASE

HE-EX MA1

• The reduction gears are lubricated by

multipurpose, lithium-based grease in

the gear case. At every 20 hours of

use, supply the gear case with new

grease.

• Remove the cutter holders before

installing new grease to arrange for old

grease to exit.

(1) End cap

(2) Main gear

4. Apply a continuous bead of loctite ultra

grey around the pilot diameter of the

end cap. Install the end cap, and then

install and firmly tighten the four end

cap bolts.

NOTE

• When removing and installing the cutter

holder(a), use care not to allow any dirt

and dust entering in to the gear case.

5. Install the drum and axle assemblies,

and then reconnect the spark plug wire.

IMPORTANT

(RMS-EX only)

• Use only Mobil SHC 634 Synthetic

Gear Oil.

■ GEARCASE LUBRICATION

With the exception of oil leaks or

• Do not mix other oils ar additives with

the RedMax Sweeper Gearcase Oil.

• Do not disturb the sealed end plug or

bolt on the gearcase (leakage may

occur).

contamination, the RedMax Sweeper's oil

filled gearcase is designed to last the life

of the machine under normal use:

• It is not necessary to add oil or to "top

off" the gearcase under normal

operating conditions.

• Do not use the RedMax Sweeper if oil

is leaking from the gearcase. Return

the machine to the dealer for repairs.

• For continuous heavy-duty

applications, (such as where the

machine will be stopped only during

refueling), RedMax recommends

replacing RedMax Sweeper gearcase

oil every 40 hours of operation.

WARNING

Make sure that the engine has stopped

and is cool before performing any

service to the machine. Contact with

moving sweeping head or hot muffler

may result in a personal injury.

■ REPLACING THE GEARCASE OIL

(MA1)

Warm the gearcase oil by running the

RedMax Sweeper at varying speeds for

approximately 8-10 minutes, and then

switch the engine to "OFF" and

disconnect the spark plug wire at the

engine. Use the following procedure to

remove and replace all gearcase oil.

1. Remove the drum and axle assemblies

(see page 12), and then remove the

four end cap bolts and the end cap (the

gearcase need not be removed from

the RedMax Sweeper).

2. Allow all used gearcase oil to drain into

a small container.

WARNING

BURN DANGER! The gearcase and oil

will be extremely hot after use!

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10. Storage

• Aged fuel is one of major causes of

engine starting failure. Before storing

the unit, empty the fuel tank and run

the engine until it uses all the fuel left in

the fuel line and the carburetor. Store

the unit indoor taking necessary

measures for rust prevention.

11. Disposal

• When disposing your machine, fuel or

oil for the machine, be sure to allow

your local regulations.

12. Troubleshooting guide

Case 1. Starting failure

CHECK

PROBABLE CAUSES

incorrect fuel

ACTION

drain it and with correct fuel

clean

fuel tank

➞

fuel filter

➞

fuel filter is clogged

out of normal range

spark plug is fouled/wet

plug gap is incorrect

disconnected

carburetor adjustment screw

sparking (no spark)

adjust to normal range

clean/dry

correct (GAP: 0.6 – 0.7 mm)

retighten

spark plug

Case 2. Engine starts but does not keep running/Hard re-starting.

CHECK

PROBABLE CAUSES

incorrect fuel or staled fuel

out of normal range

carbon is built-up

ACTION

drain it and with correct fuel

adjust to normal range

wipe away

fuel tank

➞

carburetor adjustment screw

muffler,cylinder (exhaust port)

air cleaner

clogged with dust

replace

cylinder fin, fan cover

clogged with dust

clean

When your unit seems to need further service, please consult with our service shop in your area.

US-28

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FEDERAL AND CALIFORNIA EMISSIONS CONTROL WARRANTY

STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS

The EPA (U.S. Environmental Protection Agency), CARB (California Air Resources Board), Environment

Canada and RedMax are pleased to explain the emissions control system's warranty on your 2009 and later

small off-road engine. In U.S. and Canada, new equipment that use small off-road engines must be designed,

built, and equipped to meet the applicable Federal or Californian stringent anti-smog standards. RedMax must

warrant the emissions control system on your small off-road engine for the period listed below provided there

has been no abuse, neglect or improper maintenance of your equipment. Your emissions control system may

include parts such as carburetor, ignition system, catalytic converter, fuel tank, filters and other associated

components. Also, included may be hoses, belts, connectors, sensors, and other emission-related assemblies.

Where a warrantable condition exists, RedMax will repair your small off-road engine at no cost to you including

diagnosis, parts and labor.

MANUFACTURER'S WARRANTY COVERAGE

This emissions control system is warranted for two years or if the product qualifies for a longer warranty period

resulting from the type of use, that period shall prevail. If any emissions-related part on your equipment is

defective, the part will be repaired or replaced by RedMax.

OWNER'S WARRANTY RESPONSIBILITIES

As the small off-road engine owner, you are responsible for performance of the required maintenance listed in

your Owner's Manual. RedMax recommends that you retain all receipts covering maintenance on your small off-

road engine, but RedMax cannot deny warranty solely for the lack of receipts or your failure to ensure the

performance of all scheduled maintenance. As the small off-road engine owner, you should however be aware

that the RedMax may deny you warranty coverage if your small off-road engine or a part has failed due to

abuse, neglect, or improper maintenance or unapproved modifications.

You are responsible for presenting your small off-road engine to a RedMax distribution center or service center

as soon as the problem exists. The warranty repairs should be completed in a reasonable amount of time, not to

exceed 30 days. If you have any questions regarding your warranty coverage, you should contact RedMax at 1-

800-291-8251 or via e-mail at [email protected].

WARRANTY COMMENCEMENT DATE

The warranty period begins on the date the engine or equipment is delivered to an ultimate purchaser.

LENGTH OF COVERAGE

RedMax warrants to the ultimate purchaser and each subsequent owner that the engine or equipment is

designed, built, and equipped so as to conform with all applicable regulations adopted by EPA and CARB, and

is free from defects in materials and workmanship that causes the failure of a warranted part for a period of two

years.

WHAT IS COVERED

REPAIR OR REPLACEMENT OF PARTS Repair or replacement of any warranted part under the warranty

must be performed at no charge to the owner at a warranty station. Warranty services or repairs will be provided

at all RedMax distribution centers that are franchised to service the subject engines. Throughout the emissions

warranty period of two years, RedMax must maintain a supply of warranted parts sufficient to meet the expected

demand for such parts.

WARRANTY PERIOD Any warranted part that is scheduled for replacement as required in the maintenance

schedule, is warranted for the period of time prior to the first scheduled replacement point for that part. If the

part fails prior to the first scheduled replacement, the part will be repaired or replaced by RedMax at no cost.

Any such part repaired or replaced under warranty is warranted for the remainder of the period prior to the first

scheduled replacement point for the part. Any warranted part that is not scheduled for replacement as required

in the maintenance schedule, is warranted for two years or if the product qualifies for a longer warranty period

resulting from the type of use, that period shall prevail. If any such part fails during the period of warranty

coverage, it will be repaired and replaced by RedMax at no cost. Any such part repaired or replaced under the

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EXZ2450S-PH

warranty is warranted for the remaining warranty period. Any warranted part that is scheduled only for regular

inspection in the maintenance schedule will be warranted for a period of two years. A statement in such written

instructions to the effect of "repair or replace as necessary" will not reduce the period of warranty coverage. Any

such part repaired or replaced under warranty will be warranted for the remaining warranty period.

DIAGNOSIS The owner must not be charged for diagnostic labor that leads to the determination that a

warranted part is in fact defective, provided that such diagnostic work is performed at a warranty station.

CONSEQUENTIAL DAMAGES RedMax is liable for damages to other engine components proximately caused

by a failure under warranty of any warranted part.

EMISSION WARRANTY PARTS LIST

1. Air-induction system*

2. Fuel system*

3. Ignition system*

4. Fuel tank, cap and lines as applicable*

*some components only covered up to point specified by maintenance schedule

WHAT IS NOT COVERED

All failures caused by abuse, neglect or improper maintenance are not covered.

ADD-ON OR MODIFIED PARTS

Add-on or modified parts that are not exempted by CARB or EPA may not be used. The use of any non-

exempted add-on or modified parts will be grounds for disallowing a warranty claim. RedMax will not be liable to

warrant failures of warranted parts caused by the use of a non-exempted add-on or modified part.

HOW TO FILE A CLAIM

If you have any questions regarding your warranty rights and responsibilities, you should contact your nearest

authorized servicing dealer or contact RedMax at 1-800-291-8251 or via e-mail at [email protected].

WHERE TO GET WARRANTY SERVICE

Warranty services or repairs are provided through all RedMax authorized servicing dealers.

MAINTENANCE, REPLACEMENT AND REPAIR OF EMISSION-RELATED PARTS

Any replacement part may be used in the performance of any warranty maintenance or repairs and must be

provided without charge to the owner. Such use will not reduce the warranty obligations of the manufacturer.

MAINTENANCE STATEMENT

The owner is responsible for the performance of all required maintenance, as defined in the operator's manual.

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