OPERATION AND PARTS MANUAL
SERIES
MODEL MT-74F
TAMPING RAMMER
(ROBIN GASOLINE ENGINE)
Revision #12 (11/08/07)
To find the latest revision of this
publication, visit our website at:
THIS MANUAL MUST ACCOMPANYTHE EQUIPMENT AT ALLTIMES.
TABLE OF CONTENTS
Multiquip Tamping Rammer
MT-74F
ROBIN EH-12-2D46051 ENGINE
Crankcase and Cylinder Assembly ................34-35
Crankshaft and Piston Assembly ...................36-37
Muffler, Air Cleaner, Camshaft,& Carb. Assy..38-39
Governor Assembly .......................................40-41
Recoil Starter and Blower Assembly .............42-43
Magneto Assembly ........................................44-45
Carburetor Assembly .....................................46-47
Proposition 65 Warning ......................................... 2
Table Of Contents ................................................. 3
Parts Ordering Procedures ................................... 4
Safety Message Alert Symbols ..........................5-6
Rules For Safe Operation ..................................7-8
Operation and Safety Decals ................................ 9
General Information ............................................ 10
Specifications ...................................................... 11
Controls and Components .................................. 12
Basic Engine ....................................................... 13
Operation .......................................................14-16
Maintenance ....................................................... 17
Troubleshooting Guide ...................................18-19
Explanation Of Codes In Remarks Column ........ 20
Suggested Spare Parts ....................................... 21
Name Plate and Decals .................................22-23
Crankcase and Engine Assembly ..................24-27
Guide Cylinder and Foot Assembly ...............28-29
Tank and Handle Assembly ...........................30-33
Terms and Condition Of Sale
—
Parts ................ 48
Specification and part number are
subject to change without notice.
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 3
PARTS ORDERING PROCEDURES
Ordering parts has never been easier!
Choose from three easy options:
Effective:
January 1st, 2006
Best Deal!
Order via Internet (Dealers Only)
Orderpartson-lineusingMultiquip’sSmartEquipwebsite!
:
If you have an MQ Account, to obtain a
Username and Password, E-mail us at:
■
■
■
View Parts Diagrams
Order Parts
PrintSpecificationInformation
To obtain an MQ Account, contact your
District Sales Manager for more information.
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
Gotowww.multiquip.comandclickon
to log in and save!
Order Parts
Note: Discounts Are Subject To Change
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Order via Fax (Dealers Only)
:
All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)
Note: Discounts Are Subject To Change
Domestic (US) Dealers Call:
1-800-427-1244
Order via Phone:
Non-Dealer Customers:
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
When ordering parts, please supply:
❒
❒
❒
❒
❒
❒
Dealer Account Number
❒
Specify Preferred Method of Shipment:
✓
UPS/Fed Ex
✓ DHL
Dealer Name and Address
■
■
Priority One
Ground
✓
Truck
Shipping Address (if different than billing address)
Return Fax Number
Applicable Model Number
■ Next Day
■
Second/ThirdDay
Quantity, Part Number and Description of Each Part
All orders are treated as Standard Orders
andwillshipthesamedayifreceivedprior
to 3PM PST.
WE ACCEPT ALL MAJOR CREDIT CARDS!
PAGE 4 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — SAFETY MESSAGE ALERT SYMBOLS
HAZARD SYMBOLS
FORYOUR SAFETY ANDTHE SAFETY OF OTHERS!
Potential hazards associated with the operation of a MT-74F
Tamping Rammer will be referenced with Hazard Symbols
Safety precautions should be followed
at all times when operating this
equipment. Failure to read and
understand the Safety Messages and
Operating Instructions could result in
injury to yourself and others.
which appear throughout this manual, and will be referenced
Lethal Exhaust Gases
in conjunction with Safety Message Alert Symbols.
Lethal Exhaust Gas Hazards
WARNING
This Owner's Manual has been
developed to provide complete
instructions for the safe and efficient
Engine exhaust gases contain
poisonous carbon monoxide. This gas
is colorless and odorless, and can
cause death if inhaled. NEVER operate
this equipment in a confined area or
enclosed structure that does not provide
ample free flow air.
operation of the MQ Mikasa, Model
MT-74F Tamping Rammer. Refer to
the engine manufacturers instructions
for data relative to its safe operation.
Before using this rammer, ensure that the operating
individual has read and understands all instructions in this
manual.
Explosive Fuel Hazards
SAFETY MESSAGE ALERT SYMBOLS
WARNING
Gasoline is extremely flammable, and
its vapors can cause an explosion if
ignited. DO NOT start the engine near
spilled fuel or combustible fluids.
The three (3) Safety Messages shown below will inform you
about potential hazards that could injure you or others. The
Safety Messages specifically address the level of exposure to
the operator, and are preceded by one of three words: DANGER,
DO NOT fill the fuel tank while the engine is running or
hot. DO NOT overfill tank, since spilled fuel could ignite if
it comes into contact with hot engine parts or sparks from
the ignition system. Store fuel in approved containers, in
well-ventilated areas and away from sparks and flames.
DANGER
You WILL be KILLED or SERIOUSLY INJURED
if you DO NOT follow these directions.
Burn Hazards
WARNING
WARNING
Engine components can generate extreme
heat. To prevent burns, DO NOT touch
these areas while the engine is running or
immediately after operations. Never
operate the engine with heat shields or heat
guards removed.
You CAN be KILLED or SERIOUSLY INJURED if
you DO NOT follow these directions.
CAUTION
You CAN be INJURED if you DO NOT follow
these directions.
Respiratory Hazards
WARNING
ALWAYS wear approved respiratory
protection when required.
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 5
MT-74F — SAFETY MESSAGE ALERT SYMBOLS
Equipment Damage
Rotating Parts Hazards
CAUTION
CAUTION
Hazards
NEVER operate equipment with covers,
or guards removed. Keep fingers, hands,
hair and clothing away from all moving
parts to prevent injury.
Other important messages are provided throughout this
manual to help prevent damage to your light tower, other
property, or the surrounding environment.
Accidental Starting Hazards
CAUTION
ALWAYS place the ON/OFF switch in
the OFF position when the rammer is
not in use.
Eye and Hearing Hazards
CAUTION
ALWAYS wear approved eye and
hearing protection.
Refueling Hazard
DANGER
NEVER refuel rammer when placed in truck bed with
plastic liner.The possibility exists of explosion due to static
electricity. When adding fuel, remove rammer from truck
bed and place on ground.
PAGE 6 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — RULES FOR SAFE OPERATION
■
NEVER touch the hot exhaust
manifold, muffler or cylinder. Allow
these parts to cool before servicing
engine or rammer.
Read this manual!
DANGER
Failure to follow instructions in this manual may lead
to serious injury or even death! This equipment is to
be operated by trained and qualified personnel only!
This equipment is for industrial use only.
The following safety guidelines should always be used when
operating the MT-74FTamping Rammer:
■
■
High Temperatures – Allow the engine to cool before
adding fuel or performing service and maintenance
functions. Contact with hot! components can cause serious
burns.
GENERAL SAFETY
■
DO NOT operate or service this
equipment before reading this entire
manual.
The engine section of this rammer requires an adequate
free flow of cooling air. NEVER operate the rammer in
any enclosed or narrow
area where free flow of the
air is restricted. If the air
flow is restricted it will
cause serious damage to
the rammer or engine and
■
■
This equipment should not be operated by persons under
18 years of age.
NEVER operate this equipment without proper protective
clothing, shatterproof glasses, steel-toed boots and other
protective devices required by the job.
may cause injury to people.
Remember the rammer's
engine gives off DEADLY
carbon monoxide gas.
■
■
NEVER operate this equipment when not
feeling well due to fatigue, illness or taking
medicine.
■
■
ALWAYS refuel in a well-ventilated area, away from
sparks and open flames.
ALWAYS use extreme caution when working with
flammable liquids. When refueling, stop the engine and
allow it to cool.DO NOT smoke around
NEVER operate this equipment under the influence of
drugs or alcohol.
or near the machine. Fire or explosion
could result from fuel vapors, or if fuel
is spilled on a hot engine.
■
NEVER operate the rammer in an
explosive atmosphere or near
combustible materials. An explosion or fire could result
causing severe bodily harm or even death.
■
ALWAYS wear proper respiratory (mask),
hearing and eye protection equipment when
operating the rammer.
■
■
DO NOT smoke around or near the
machine. Fire or explosion could result
from fuel vapors, or if fuel is spilled on a
hot engine.
■
■
■
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifications.
Topping-off to filler port is dangerous, as it tends to spill
fuel.
Stop the engine when leaving the rammer unattended.
Maintain this equipment in a safe operating condition at
all times.
NEVER use accessories or attachments, which are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to user may result.
■
■
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 7
MT-74F — RULES FOR SAFE OPERATION
■
■
■
■
ALWAYS stop the engine before servicing, adding fuel and
oil.
NEVER run engine without air filter. Severe engine may
occur.
ALWAYS service air cleaner frequently to prevent carburetor
malfunction.
ALWAYS check the machine for loosened threads or bolts
before starting.
MAINTENANCE
■
NEVER lubricate components or attempt service on a
running rammer.
■
ALWAYS allow the rammer a proper amount of time to
cool before servicing.
■
■
Keep the rammer in proper running condition.
Fix damage to the rammer immediately and always
replace broken parts.
■
■
ALWAYS be sure the operator is familiar with proper safety
precautions and operations techniques before using rammer.
ALWAYS store equipment properly when it is not being used.
Equipment should be stored in a clean, dry location out of
the reach of children.
■
■
Dispose of hazardous waste properly. Examples of
potentially hazardous waste are used motor oil, fuel
and fuel filters.
DO NOT use food or plastic containers to dispose of
hazardous waste.
■
■
■
■
DO NOT operate this equipment unless all guards and
safety devices are attached and in place.
CAUTION must be exercised while servicing this equipment.
Rotating and moving parts can cause injury if contacted.
Keep all inexperienced and unauthorized people away
from the equipment at all times.
Unauthorized equipment modifications will void all
warranties.
EMERGENCIES
■
ALWAYS know the location of the nearest fire
extinguisher and first aid kit.
■
■
NEVER pour or spray water over the engine.
Test the engine ON/OFF switch before operating. The
purpose of this switch is to shut down the engine of the
rammer.
■
In emergencies always know the location of
the nearest phone or keep a phone on the job
site. Also know the phone numbers of the
nearest ambulance, doctor and fire
department. This information will be invaluable
in the case of an emergency.
■
Refer to the ROBIN Engine Owner's Manual for engine
technical questions or information recommended by
Multiquip for this equipment.
TRANSPORTING
■
■
ALWAYS shutdown engine before transporting.
Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.
■
■
Drain fuel when transporting rammer over long distances
or bad roads.
When placing the rammer inside a truck-bed for transport,
always tie-down the rammer
PAGE 8 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — OPERATION AND SAFETY DECALS
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 9
MT-74F — GENERAL INFORMATION
Definition of Tamping Rammer
The Mikasa MT-74F tamping rammer is a powerful compacting
tool capable of applying a tremendous force in consecutive
impacts to a soil surface. Its applications include soil compacting
for road, embankments and reservoirs as well as backfilling for
gas pipelines, water pipelines and cable installation work.
The impact force of the MT-74F levels and uniformly compacts
voids between soil particles to increase dry density.
Circular motion is converted to create impact force.The MT-74F
tamping rammer develops a powerful compacting force at the
foot of the rammer.To maintain optimum performance, proper
operation and service are essential.
Construction of Tamping Rammer
The Mikasa MT-74F is equipped with an air cooled, four-cycle
gasoline engine. Transmission of the power takes place by
increasing the engine speed to engage the centrifugal clutch.
Rammer Gearbox and Spring Cylinder
The Mikasa MT-74F uses an oil bath lubrication system.Always
check the oil level through the oil level sight glass at the rear of
the tamper foot.
Controls
Before starting the MT-74F Tamping Rammer identify and
understand the function of the controls. See Figure 1.
PAGE 10 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — SPECIFICATIONS
Table1. MT-74F Rammer Specifications
MODEL
Overall Height
Overall Width
Over Length
Shoe Size
MT-74F
41.1 in. (1,043 mm)
16.2 in (412 mm)
28.3 in (720 mm)
11.3 in. (288 mm)
680
Blows/minute
Impact Force
Clutch
3,100 lbs./blow (1,400 kg/blow)
Automatic Centrifugal
161 lbs. (73 kg)
Operating Weight
Table 2. EH12-2D46051 Engine Specifications
MODEL
ROBIN EH12-2D46051 ENGINE
Air-Cooled 4 Stroke Gasoline Engine
7.38 cu.in. (121 cm3)
4.0 hp
Type
Piston Displacement
Max. Output
Max. Governed Speed, No Load
Cooling System
Lubrication System
Fuel
4,000 rpm
Air-Cooled
Oil Bath---10W30 Motor Oil
Unleaded gasoline
Recoil Starter
Starting System
Specifications are general and are subject to change without notice. If exact
measurements are required, equipment should be weighed and measured.
NOTE
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 11
MT-74F — CONTROLS AND COMPONENTS
Figure 1. MT-74F Rammer
Figure 1 shows the location of the controls and components
for the MT-74F Tamping Rammer. The functions of each
control is described below:
8. Foot – Laminated wood with tempered steel plate for
superior shock absorption.
9. Oil Level Sight Glass – Indicates the level of oil in the oil
bath reservoir.
1. ThrottleLever– Controlsenginespeedandthetamping
10. RecoilStartingHandle –Usedwhenstartingtheengine.
Pull starter handle sharply and quickly, then return
starter handle to starter case before releasing.
action of the rammer.
2. EngineStopSwitch–Controlsthestartingandstopping
of the engine. Switch must be in the "ON" position when
starting the engine.
11. Fuel Tank/Cap – Poly fuel tank to avoid rust and
corrosion, remove this cap to add gasoline.
3. ChokeLever– Usedwhenstartingtheengine.Normally
used in cold weather conditions. In cold weather turn the
choke lever to the fully closed position, in warm weather
set choke lever half way or completely open.
12. Engine Air Cleaner – Prevents dirt (second stage) and
other debris from entering the engine.
13. Bellows – Reservoir for oil bath.
14. Handle – To operate rammer, grip handle assembly
4. Fuel Shut-OffValve – Supplies fuel from the fuel tank to
theengine.Tobeginfuelflowmovethefuelshut-offvalve
downward.
firmly on both sides.
15. Muffler– Used to reduce noise and emissions.
L1. A Returned Material Authorization must be approved by Multiquip prior to shipment. A copy of the Authorization must
5. Oil Bath Fill Plug – Open this plug to add oil to the oil
16. Spark Plug – Provides spark to the ignition system,
accompany the shipment to the designated Warehouse. A copy of the original Multiquip invoice to the customer must
bath reservoir.
replace with engine manufactures recommended type
spark plug.
also accompany the shipment.
6. Drain Valve – Open this valve to remove oil from the
bellows.
17. Nameplate– Displaysinformationregardingtherammer.
7. Pre-Cleaner – Pre-cleans (first stage) dirt and other
debris from entering the engine.
PAGE 12 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — BASIC ENGINE
Figure 1A. Robin EH-12-2D Engine Controls and Components
INITIAL SERVICING
The engine (Figure 1A) must be checked for proper lubrication and
filled with fuel prior to operation. Refer to the manufacturer's Engine
manual for instructions & details of operation and servicing.
5. Recoil Starter (pull rope) – Manual-starting method. Pull
the starter grip until resistance is felt, then pull briskly and
smoothly.
1. Secondary Air Cleaner – Prevents dirt and other debris
from entering the fuel system. Remove wing-nut on top of
air filter cannister to gain access to filter element.
6. Engine ON/OFF Switch – Controls the starting and
stopping of the engine. Switch must be in the "ON" position
when starting the engine.
2. Choke Lever –Used when starting the engine. Normally
WARNING
used in cold weather conditions. In cold weather turn the
Operating the engine without an
air filter, with a damaged air filter,
or a filter in need of replacement
will allow dirt to enter the engine,
causing rapid engine wear.
choke lever to the fully closed position, in warm weather
WARNING
NOTE
set choke lever half way or completely open.
3. Spark Plug – Provides spark to the ignition system. Set
spark plug gap to 0.6 - 0.7 mm (0.024 - 0.028 inch). Clean
spark plug once a week.
4. Muffler – Used to reduce noise and emissions.
WARNING
Engine components can generate extreme heat.
To prevent burns, DO NOT touch these areas
while the engine is running or immediately after operating. NEVER
operate the engine with the muffler removed.
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 13
MT-74F — OPERATION
Engine
This section is intended to assist the operator with the initial
start-up of the MT-74FTamping Rammer.It extremely important
that this section be read carefully before attempting to operate
the rammer.
1. Fill the fuel tank (Figure 3 ) with unleaded gasoline. At the
same time, check the engine oil and make it a habit to
replenish it often.
DO NOT use your rammer until this section is thoroughly
understood.
Read Manual
CAUTION
Failure to understand the operation of
the MT-74F Tamping Rammer could
result in severe damage to the trowel
or personal injury.
Rammer Gearbox and Spring Cylinder Oil Bath
This unit uses an oil bath lubrication system.Perform the following:
Figure 3. Fuel Tank
1. Checktheoillevelthroughtheoillevelsightglass(Figure2)
at the rear of the tamper foot.
Figure 4. Engine Oil Dipstick
2. Low levels of oil may result in engine seizure due to high
levels of consumption during operations.
Figure 2. Foot Housing Sight Glass
3. Check the engine oil level and if the engine oil level is low, it
should be refilled. Use the proper motor oil as suggested in
the Table 3 below.
2. If oil is not visible, add 10W-30 motor oil into the oil fill plug
opening (Figure 2). The bath contains approximately 1.7
pints(800cc.)
Table 3 Motor Oil Grade
Grade of motor oil
Season or Temperature
(higher than MS class)
Spring, Summer or Autumn
SAE 30
The oil level should be kept at the half
way point of the sight glass.
+120° F to +15° F
Winter
SAE 30
+40° F to +15° F
Below +15° F
SAE 10W-30
PAGE 14 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — OPERATION
Inspection
3. Closethechokelever (Figure7) andmovethethrottlelever
to the "Full Open" position. Turning the choke lever 90
degreesclockwiseclosesthechoke.Incoldweather,startthe
unit with choke fully closed. In warm weather or when the
engine is warm, the unit can be started with choke halfway
orcompletelyopen.
1. Check all nuts, bolts fasteners for tightness. Retighten as
necessary.
2. Clean anydirtfromtherecoil starterand footpedestal. Wipe
the entire unit clean before operating.
3. ReplaceanymissingordamagedSafetyOperationdecals.
4. Adjustheightofhandle.Adjusthandlebylooseningnutsand
moving handle to suit operation. Retighten nuts.
Initial Start-up
When starting the MT-74F Tamping Rammer perform the
following:
1. Openthe fuelshut-off valvebymovingthefuel cock lever
to the open position (Figure 5) then set the engine start/
stop switch (Figure 4) to the "START" position.
Figure 7. Choke Lever
4. Grip the recoil starter (Figure 8 ) handle and pull it until you
feelaslightresistance.Thenpullsharplyandquickly.Return
therecoilstarterhandletothestartercasebeforereleasing.
Figure 5. Fuel Cock
2. Set the engine ON/OFF switch (Figure 6) to the "ON"
position(start).
Figure 8. Recoil Starter
5. Ifenginefailstostart,movethechokelever(Figure7) tothe
half open position to avoid flooding.
6. Repeat steps 1 thru 4.
7. If the engine does not start after repeated attempts,
check the spark plug forexcess fuel. Clean and replace
the spark plug as needed.
Figure 6. On Off Switch
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 15
MT-74F — OPERATION
Operation
3. To stop the tamping action, move throttle lever quickly from
1. To start the rammer tamping action, move the throttle lever
(Figure 9) quickly from IDLE (close) to the FULL OPEN
position.DONOTmovethethrottleleverslowlyasthismay
cause damage to the clutch or spring.
the FULL OPEN to IDLE position.
Stopping The Engine
Normal Shutdown
1. Move throttle lever quickly from the FULL OPEN to IDLE
position (Figure10)andruntheengineforthreeminutesat
lowspeed.Aftertheenginecools,turntheenginestart/stop
switchtothe“STOP”position(Figure6)untilenginecomes
to a complete stop.
Figure 9. Throttle Lever (Full Open)
CAUTION:
Figure 10. Throttle Lever (Idle)
Make sure that the throttle lever is moved to the
FULL OPEN position. Operating the rammer at
less than full speeds can result in damage to
the clutch springs or foot
2. Closethefuelshut-offvalvebymovingthefuelcockleverto
the CLOSED position. See Figure 5.
Emergency Showdown
1. MovethethrottleleverquicklytotheIDLE position,andturn
the engine start/stop switch to the STOP position.
2. TheMT-74FTampingrammerisdesignedtorunat4,000rpm.
At optimum rpm the foot hits at the rate of 680 impacts per
minute. Increasing throttlespeedpastfactorysetrpmdoes
not increase impacts and may damage unit.The MT-74F is
designedtoadvancewhiletamping.Forfasteradvance,pull
back slightly on the handle so that rear of foot contacts soil
first.
PAGE 16 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — MAINTENANCE
■
The air cleaner (Figure 12 ) on the engine side will hardly
be contaminated, if it is, however after cleaning the element
with kerosene, dip it in mixed oil consisting of 3 parts of
gasoline and 1 part of engine oil.Then tightly squeeze outer
primary element (sponge) and shake off well the inner
secondary element before installing them.
Maintenance
Performthescheduledmaintenanceproceduresasindicated:
DAILY
■
Thoroughly remove dirt and oil from the engine and control
area.Clean or replace the air cleaner elements as necessary.
Check and retighten all fasteners as necessary. Check the
spring box and bellows for oil leaks. Repair or replace as
needed.
WEEKLY
■
Remove the fuel filter cap and clean the inside of the fuel
tank.
■
■
Remove or clean the filter at the bottom of the tank.
Remove and clean the spark plug, then adjust the spark gap
to 0.02~0.03 inch (0.6~0.7 mm). This unit has electronic
ignition, which requires no adjustments.
Figure 12. Engine Air Cleaner
200 - 300 HOURS (Oil Bath)
■
Clean air cleaner cover.
■
Drain oil reservoir on foot housing (Figure 13). Refill with
approximately 1.7 pt. (800cc) of 10W-30 motor oil. Oil should
be midway in sight glass. Break in oil should be changed
after first 50 hours.
200 - 300 HOURS (Pre-Cleaner)
■
Remove the element from the pre-cleaner (Figure 11) at the
top of the crankcase (body side) and clean it with cleaning oil
(kerosene).
PRE-CLEANER
YELLOW
GRAY
2-5 CC
13 -15 CC
SAE 30
SAE 30
Figure 13. Foot Housing Drain Plug
Yearly
■
Check the fuel line and the oil line regularly for damage and
to ensure that there are no leaks.
■
Replace the oil and fuel lines every two years to maintain the
performance and flexibility lines.
Figure 11. Pre-Cleaner
Long Term Storage
■
■
Lubricate the top element (yellow) with 2~5 cc of engine oil
SAE-30.
■
■
Drain fuel from fuel tank, fuel line and carburetor.
Remove spark plug and pour a few drops of motor oil into
cylinder. Crank engine 3 to 4 times so that oil reaches all
internal parts.
Lubricate bottom element (gray) with 13 ~15 cc of engine oil
SAE-30 and completely squeeze out the excess oil from the
element before installing.
■
■
Clean exterior with a cloth soaked in clean oil.
Store unit covered with plastic sheet in moisture free and
dust free location out of direct sunlight
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 17
MT-74F —TROUBLESHOOTING GUIDE
TABLE 4. ENGINE TROUBLESHOOTING
SYMPTOM
Difficult to start
POSSIBLE PROBLEM
SOLUTION
Ignition plug being bridge?
Carbon deposit at ignition?
Check ignition system.
Clean or replace ignition.
Replace insulators.
Fuel is available but spark plug
will not ignite. (Power available
at high tension cable).
Short circuit due to defective
insulators?
Improper spark gap?
Set spark plug gap to the correct gap.
Check stop switch circuit. Replace stop switch if defective.
Replace ignition coil.
Short circuit at stop switch?
Ignition coil defective?
Fuel is available but spark plug
will not ignite. (Power NOT
available at high tension cable).
Muffler clogged with carbon
deposits?
Clean or replace muffler.
Fuel is available and spark plug
Fuel in use inadequate (water,
dust)?
Flush fuel sytem and replace with fresh fuel.
Clean or replace air cleaner.
ignites (compression normal)
.
Air Cleaner clogged?
Defective cylinder head gasket? Tighten cylinder head bolts or replace head gasket.
Fuel is available and spark plug
ignites (compression low ).
Cylinder worn?
Replace cylinder.
Tighen spark plug.
Spark plug loose?
Operation not satisfactory
Air cleaner clogged?
Air in fuel line?
Clean or replace air cleaner.
Bleed (remove air) from fuel line.
Not enough power available
(compression normal, no miss-
firing).
Fuel level in carburetor float
chamber improper?
Adjust carburetor float.
Carbon deposits in cylinder?
Ignition coil defective?
Clean or replace cylinder.
Flush fuel sytem and replace with fresh fuel.
Replace ignition wires, clean ignition.
Flush fuel sytem and replace with fresh fuel.
Not enough power available
(compression normal, miss-
firing).
Ignition plug often shorts?
Fuel in use inadequate (water,
dust)?
Excessive carbon depostion in
combustion chamber?
Clean or replace crankcase.
Engine overheats.
Exhaust or muffler clogged with Clean or replace muffler.
carbon.
Spark plug heat value incorrect? Replace spark plug with correct type spark plug.
PAGE 18 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F —TROUBLESHOOTING GUIDE
TABLE 4. ENGINE TROUBLESHOOTING (continued)
SYMPTOM
POSSIBLE PROBLEM
SOLUTION
Operation not satisfactory
Governor adjustment improper? Adjust governor to correct lever.
Governor spring defective?
Fuel flow erratic?
Clean or replace ignition.
Check fuel line.
Rotational speed fluctuates.
Air taken in through suction
line?
Check suction line.
Dust in rotating part?
Spiral spring failure?
Clean recoil starter assembly.
Replace spiral spring.
Recoil starter not working
properly.
TABLE 5. RAMMER TROUBLESHOOTING
POSSIBLE PROBLEM
SYMPTOM
SOLUTION
Operating speed of throttle lever Set throttle lever to correct position.
is incorrectly set?
Oil in excess?
Drain excess oil. Bring to correct level.
Replace or adjust clutch.
Engine rotates but amplituide
not uniform or does not strike.
Clutch slips?
Spring Failure?
Replace spiral spring.
Speed of engine improper?
Adjust engine speed to correct operating RPM setting.
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 19
MT-74F — EXPLANATION OF PARTS SECTION REMARKS COLUMN
The following section explains the different symbols and
remarks used in the Parts section of this manual. Use the help
numbers found on the back page of the manual if there are any
questions.
QTY. Column
Numbers Used - Item quantity can be indicated by a
number, a blank entry, or A/R.
A/R (As Required) is generally used for hoses or other parts
that are sold in bulk and cut to length.
The contents and part numbers listed in the parts section are
subject to change without notice. Multiquip does not
guarantee the availibility of the parts listed.
A blank entry generally indicates that the item is not sold
separately. Other entries will be clarified in the “Remarks”
Column.
REMARKS Column
Sample Parts List:
Some of the most common notes found in the “Remarks”
Column are listed below. Other additional notes needed to
describe the item can also be shown.
NO. PART NO. PART NAME
QTY. REMARKS
1
2
2
3
4
12345
BOLT ...................... 1 ......INCLUDES ITEMS W/
WASHER, 1/4 IN. .............NOT SOLD SEPARATELY
WASHER, 3/8 IN. ... 1 ......MQ-45T ONLY
HOSE ................... A/R ....MAKE LOCALLY
BEARING ............... 1 ......S/N2345B AND ABOVE
*
*
*
12347
12348
12349
Assembly/Kit - All items on the parts list with the same
unique symbol will be included when this item is purchased.
Indicated by:
“INCLUDES ITEMS W/(unique symbol)”
NO. Column
Unique Symbols - All items with same unique symbol
Serial Number Break - Used to list an effective serial
number range where a particular part is used.
( , #,
+
, %, or >) in the number column belong to the same
*
assembly or kit, which is indicated by a note in the “Remarks”
column.
Indicated by:
“S/N XXXXX AND BELOW”
“S/N XXXX AND ABOVE”
“S/N XXXXTO S/N XXX”
Duplicate Item Numbers - Duplicate numbers indicate
multiple part numbers are in effect for the same general
item, such as different size saw blade guards in use or a
part that has been updated on newer versions of the same
machine.
Specific Model Number Use - Indicates that the part is
used only with the specific model number or model number
variant listed. It can also be used to show a part is NOT
used on a specific model or model number variant.
When ordering a part that has more than one
item number listed, check the remarks column
for help in determining the proper part to order.
Indicated by:
“XXXXX ONLY”
“NOT USED ON XXXX”
“Make/Obtain Locally” - Indicates that the part can be
purchased at any hardware shop or made out of available
items. Examples include battery cables, shims, and certain
washers and nuts.
PART NO. Column
Numbers Used - Part numbers can be indicated by a
number, a blank entry, orTBD.
“Not Sold Separately” - Indicates that an item cannot be
purchased as a separate item and is either part of an
assembly/kit that can be purchased, or is not available for
sale through Multiquip.
TBD (To Be Determined) is generally used to show a part
that has not been assigned a formal part number at time of
publication.
A blank entry generally indicates that the item is not sold
separately or is not sold by Multiquip. Other entries will be
clarified in the “Remarks” Column.
PAGE 20 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — SUGGESTED SPARE PARTS
MT-74F RAMMER 1TO 3 UNITS
MT-74F RAMMER 3TO 5 UNITS
QTYPART NO
DESCRIPTION
REMARKS
QTYPART NO
DESCRIPTION
REMARKS
1 .. 956225020 ..... LEVER, THROTTLE ....... S/N L1291 AND BELOW
1 .. 362455630 ..... LEVER, THROTTLE ....... S/N L1292 AND ABOVE
1 .. 956106040 ..... THROTTLE WIRE ......... S/N L1291 AND BELOW
1 .. 956100045 ..... THROTTLE WIRE .......... S/N L1292 AND ABOVE
3 .. 354030030 ..... ELEMENT,YELLOW
3 .. 354030040 ..... ELEMENT, GRAY
1 .. 361910020 ..... CAP, FUEL TANK
1 .. 954300390 ..... COCK, FUEL ASSY. ....... S/N L1291 AND BELOW
1 .. 954300720 ..... COCK, FUEL ASSY. ....... S/N L1292 AND ABOVE
1 .. 954404890 ..... FILTER, FUEL TANK ...... S/N M2534 AND BELOW
2 .. 301419750 ..... FILTER, IN-LINE FUEL
1 .. 956225020 ..... LEVER, THROTTLE ......S/N L1291 AND BELOW
1 .. 362455630 ..... LEVER, THROTTLE ......S/N L1292 AND ABOVE
1 .. 956106040 ..... THROTTLE WIRE ........S/N L1291 AND BELOW
1 .. 956100045 ..... THROTTLE WIRE .........S/N L1292 AND ABOVE
5 .. 354030030 ..... ELEMENT,YELLOW
5 .. 354030040 ..... ELEMENT, GRAY
2 .. 354329380 ..... CLAMP, BELLOWS
1 .. 354010010 ..... BELLOWS
1 .. 361910020 ..... CAP, FUEL TANK
1 .. 954300390 ..... COCK, FUEL ASSY. ......S/N L1291 AND BELOW
1 .. 954300720 ..... COCK, FUEL ASSY. ......S/N L1292 AND ABOVE
2 .. 954404890 ..... FILTER, FUEL TANK .....S/N M2534 AND BELOW
5 .. 301419750 ..... FILTER, IN-LINE FUEL
5 .. 2523260107 ... ELEMENT, SET
1 .. 0660000371 ... STOP SWITCH ASSY
5 .. 0650140580 ... SPARK PLUG
1 .. 954405080 ..... STRAINER, FUEL TANK
3 .. 2523260107 ... ELEMENT, SET
1 .. 0660000371 ... STOP SWITCH ASSY
3 .. 0650140580 ... SPARK PLUG
1 .. 954405080 ..... STRAINER, FUEL TANK
1 .. 2695011008 ... ROPE, RECOIL STARTER
2 .. 2695011008 ... ROPE, RECOIL STARTER
1 .. 362454441 ..... CLUTCH ASSY
Part numbers on this Suggested Spare
Parts List may supersede/replace the
P/N shown in the text pages of this
book.
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 21
MT-74F— NAMEPLATE AND DECAL
NAME PLATE AND DECALS
PAGE 22 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F— NAMEPLATE AND DECAL
NAME PLATE AND DECALS
NO
1
PART NO
PART NAME
QTY.
REMARKS
920202930
920206020
920106460
920206290
1073273308
0732004430
0732004450
920203290
DECAL: START SWITCH ...................1 ........ NPA-293
DECAL: 3400 ~ 3600 RPM
DECAL: MIKASA
DECAL: READ OWNER'S MANUAL 1.......... NPA-629
DECAL:NOTICE .............................. 1.......... NPA-831
DECAL: START SWITCH
DECAL:WARNING
DECAL:CAUTION............................ 1.......... NPA-329
PLATE, SERIAL NO. ........................ 1.......... CONTACT MQ PARTS DEPT.W/ MODEL & S/N
DECAL: OIL ..................................... 1.......... NP-700
DECAL: PRE-CLEANER .................. 1.......... NPA-437
DECAL: START/STOP ENGINE....... 1.......... NPA-624
DECAL: EAR PROTECTION ............ 1.......... NPA-333
DECAL: CLOSE FUEL COCK .......... 1.......... NPA-399
2
1
1
3
4
5
6
1
1
7
8
9
10
11
12
13
14
920107000
920204370
920206240
920203330
920203990
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 23
MT-74F — CRANKCASE AND ENGINE ASSY.
CRANKCASE AND ENGINE ASSY.
PAGE 24 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — CRANKCASE AND ENGINE ASSY.
CRANKCASE AND ENGINE ASSY.
NO. PART NO. PART NAME
QTY.
CLUTCH GUIDE / A
RE1MARKS
145
0053204201 WOODRUFF KEY
301010210 LOCK WASHER CLUTCH
1
1
1
371113331
CRANK CASE................................. 1 ...........REPLACES 371113330
4
5
040006207
040006204
BEARING 6207
BEARING 6204
1
1
46
647
956300130 THROTTLE LEVER AY 25
952400130
WASHER 9304
1
7
002210825
371447650
050300480
080100480
001220610
031106100
371334730
040006304
080100520
952400130
002210825
352444450
002200620
361449320
040006204
080200350
371449600
060404010
050101000
361449330
952405610
952405490
002210820
041006007
0053204201
362454441
BOLT 8X25 H, SW
BEARING COVER
O-RING S-48
1
1
1
2
1
1
1
1
1
1
1
1
8
9
10
11
12
13
14
15
16
17
19
20
22
23
24
25
26
27
28
29
30
31
32
34
35
STOP RING R-48
BOLT 6X10 T
WASHER M5
CONNECTING ROD
BEARING 6304
STOP RING R-52
WASHER 9304
BOLT 8X25 H, SW
PACKING, FRONT COVER
BOLT 6X20 H, SW .......................... 9 .......... REPLACES 002210620
PINION
1
1
1
1
1
1
1
1
1
1
1
1
BEARING 6204
STOP RING S-35
SPACER
OIL SEAL TC-40528
O-RING G-100
CLUTCH DRUM
KEY 5X5X19R
LOCKWASHER
BOLT 8X20 H, SW
BEARING 6007Z
WOODRUFF KEY
CLUTCH ASSY C812E ................... 1 .......... REPLACES 301421363
INCLUDES ITEMS W/
CLUTCH GUIDE/B
*
35-1
35-2
35-3
35-4
35-5
943060020
943050050
943020020
943030021
943060100
301010210
361213800
1
1
4
*
*
*
*
*
CLUTCH BOSS C812
CLUTCH SHOE C812
CLUTCH SPRING C812 .................. 2 .......... REPLACES 943030020
CLUTCH GUIDE/A 1T ..................... 1 .......... REPLACES 943060010
36
42
LOCKWASHER, CLUTCH
1
*
AIR CLEANER ASSY ..................... 1 .......... INCLUDES ITEMS W/ #
42-1# 354030011
42-2# 361010020
42-3# 354030030
42-4# 354030040
42-5# 354030050
BODY /W-CLEANER
BACK PLATE CP
ELEMENT, YELLOW
ELEMENT, GRAY
ELEMENT FRAME
1
1
1
1
1
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 25
MT-74F — CRANKCASE AND ENGINE ASSY.
PAGE 26 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — CRANKCASE AND ENGINE ASSY.
CRANKCASE AND ENGINE ASSY. CONTINUED
NO
43
44
45
46
47
48
49
49
50
51
52
53
76
77
78
79
80
81
86
91
101
110
PART NO
002210820
361336010
954010230
956225020
956106040
959403750
301010950
830000010
303010450
020310080
030210250
001221050
361336390
001220840
020308060
030208200
031108160
011308180
911201201
361335870
361010030
362910060
PART NAME
QTY.
REMARKS
BOLT 8X20 H, SW
INTAKE PIPE
4
1
1
HOSE BAND (B)
THROTTLE LEVER ASSY .............. 1 .......... S/N L1291 AND BELOW
THROTTLEWIRE S620-740 ........... 1 .......... S/N L1291 AND BELOW
RUBBER, SLIP STOP..................... 1 .......... S/N L1291 AND BELOW
RETURN SPRING........................... 1 .......... S/N L1291 AND BELOW
COIL SPRING ................................. 1 .......... S/N L1292 AND ABOVE
BAND .............................................. 1 .......... S/N L1291 AND BELOW
NUT M10
WASHER M10
2
2
BOLT 10X50 H, SW ........................ 2 ...........REPLACES 002211050
UNDER PROTECTOR
BOLT 8X40 T
1
4
4
4
4
2
1
1
NUT M8
WASHER M8
WASHER M8
BOLT AND WASHER ASSY
ENGINE ASSY EH12-2D
CRANK GEAR
FRONT COVER .............................. 1 ........... REPLACES 361010010
THROTTLE LEVER ASSY .............. 1 ........... S/N L1292 AND ABOVE
INCLUDES ITEMS W/ %
111% 362341550
112% 362910090
114% 362455620
115% 362455630
116% 050100450
117% 050200100
118% 031110160
119% 032110180
120% 096206006
121% 022131008
122% 020410060
123% 096208020
THROTTLE BODY........................... 1 ........... S/N L1292 AND ABOVE
THROTTLE GEAR CP, W/ BOLT..... 1 ...........S/N L1292 AND ABOVE
SLIDER ........................................... 1 ...........S/N L1292 AND ABOVE
THROTTLE LEVER ......................... 1 ........... S/N L1292 AND ABOVE
O-RING G-45................................... 1 ...........S/N L1292 AND ABOVE
O-RING P-10 ................................... 1 ...........S/N L1292 AND ABOVE
PW M10 .......................................... 3 ...........S/N L1292 AND ABOVE
CONICAL SPRING WASHER M10.. 2 ...........S/N L1292 AND ABOVE
SOCKET HEAD SCREW 6 X 6 ...... 1 ...........S/N L1292 AND ABOVE
CAP NUT M10 ................................ 1 ........... S/N L1292 AND ABOVE
NUT M10 ......................................... 1 ...........S/N L1292 AND ABOVE
SOCKET HEAD SCREW 8X20 ....... 1 ...........S/N L1292 AND ABOVE
NUT M8 ........................................... 2 ........... S/N L1292 AND ABOVE
THROTTLEWIRE ........................... 1 ...........S/N L1292 AND ABOVE
BOLT 6X20 T................................... 2 ...........S/N L1292 AND ABOVE
SW M6 ............................................ 2 ...........S/N L1292 AND ABOVE
CAP NUT M6 .................................. 2 ........... S/N L1292 AND ABOVE
BAND .............................................. 1 ...........S/N L1292 AND ABOVE
124
126
127
128
129
130
020408050
956100045
001220620
030206150
022130605
303010450
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 27
MT-74F — GUIDE CYLINDER AND FOOT ASSY.
PAGE 28 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — GUIDE CYLINDER AND FOOT ASSY.
GUIDE CYLINDER AND FOOT ASSY.
NO.
1
2
2
3
PART NO.
352423290
080100150
363457870
355334300
PART NAME
PISTON PIN
QTY.
1
REMARKS
STOP RING R-15 ....................................... 1 ............. S/N M3419 AND BELOW
PISTON PIN PLUG ..................................... 1 ............. S/N M3420 AND ABOVE
PISTON ROD KIT ....................................... 1 ............ REPLACES 355447240
INCLUDES ITEMS W/ %
3
361344360
PISTON ROD
PISTON END
1
1
1
1
1
2
1
1
1
4%
5%
6
7
8
020118150
355447250
355447260
355447270
355334310
355213000
050100900
014210020
014210040
953405270
953405260
355213010
050201500
050931500
012710035
354010010
354336352
354442340
011008040
020108060
354446170
953405270
953405260
050100950
050200950
355113960
355119030
959010150
953404670
021112140
030212300
021110120
8511S
NUT M18, P1.5
STOPPER UPPER
STOPPER, LOWER
MAIN SPRING
SPRING CYLINDER
FOOT PLATE
9
10
11
12
13
14
15
17
18
19
20
21
22
23
24
25
26
28
29
30
30
41
41
47
48
111
112
121
130
O-RING G-90
SOCKET HEAD BOLT 10X20 T .................. 4 ............. REPLACES 001521020
SOCKET HEAD BOLT 10X40 T .................. 4 ............. REPLACES 001521040
PLUG 1/4X14 13L
PACKING 1/4 (CU)
GUIDE CYLINDER
O-RING P-150
1
1
1
1
2
O-RING JASO3150
BOLT 10X35 H,SW ..................................... 4 ............. REPLACES 002211035
BELLOWS(L) ORANGE
BELLOWS CLAMP ..................................... 2 ............. REPLACES 354329380
BAND GUIDE, BELLOWS
BOLT 8X40 H.............................................. 2 ............. REPLACES 001220840
NUT M8 ...................................................... 2 ............. REPLACES 020308060
PIN 6D-8.5L
PLUG 1/4X14 13L
PACKING 1/4 (CU)
O-RING G-95.............................................. 1 ............. S/N R2411 AND BELOW
O-RING P-95 .............................................. 1 ............. S/N R2412 AND ABOVE
PROTECTION SLEEVE.............................. 1 ............. S/N R2411 AND BELOW
PROTECTION SLEEVE.............................. 1 ............. S/N R2412 AND ABOVE
LEVEL GAUGE, PLUGTYPE
COPPER PACKING 17X25.5X1
NYLON NUT M12 ....................................... 4 ............. REPLACES 022711214
WASHER SW M12
NYLON NUT M10 ....................................... 1 ............. REPLACES 022711012
1
2
2
2
2
1
1
4
FOOT ASSY ............................................... 1 ............. REPLACES 361910030 AND 352910033
INCLUDES. ALL ITEMS W/
*
131
352108220
352108230
352333380
015112060
FOOT 285B-331L
METAL SHEET
FOOT COVER
1
1
1
*
132
133
*
*
134
SUNK HEAD BOLT 12X65 H ...................... 4 ............. S/N K9300 AND BELOW
REPLACES 001611253
134
134-1
134-2
015112060
001611259
363343390
SUNK HEAD BOLT 12X65 H ...................... 2 ............. S/N K9301 AND ABOVE
SUNK HEAD BOLT 12X95 H ...................... 2 ............. S/N K9301 AND ABOVE
HANDLE ..................................................... 1 ............. S/N K9301 AND ABOVE
REPLACES 001611253
137
*
015110055
030210250
021110120
SUNK HEAD BOLT 10X55 H ...................... 7 ............. REPLACES 001611051
138
*
WASHER SW M10
7
139
*
NYLON NUT M10 ....................................... 7 ............. REPLACES 022711012
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 29
MT-74F —TANK AND HANDLE ASSY.
TANK AND HANDLE ASSY. (OLD VERSION)
PAGE 30 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F —TANK AND HANDLE ASSY.
TANK AND HANDLE ASSY. (OLD VERSION)
NO
PART NO
PART NAME
QTY.
REMARKS
1
361117410
HANDLE .................................................. 1 ............... REPLACES 361113920
S/N L1291 AND BELOW
2
361449430
001710525
022610505
351319900
014210020
033121009
012210020
355113610
954404890
011208030
022710809
030208200
952401450
954300390
ROLLER HANDLE
FLANGE BOLT 5X25 H
FLANGE NUT
SHOCK ABSORBER
SOCKET HEAD BOLT 10X20T ............... 4 ................REPLACES 001521020
TOOTH LOCKEDWASHER BM10
BOLT 10X20 H, SW ................................ 4 ................REPLACES 002211020
FUELTANK
FILTER,TANK .......................................... 1 ................S/N M2534 AND BELOW
BOLT 8X30 T........................................... 2 ................REPLACES 001220830
2
4
4
2
3
4
5
6-1
6-2
7
4
9
1
10
12
13
14
15
16
NYLON NUT M8
WASHER, SW M8
2
2
WASHER 8.5X22X3 ................................ 2 ................REPLACES 953405640
FUEL COCK ASSY ................................. 1 ................S/N L1291 AND BELOW
INCLUDES ALL ITEMS W/
*
16-1
16-2
16-3
17
0642001410
0642001420
0642001430
351437785
351439290
954404590
954405080
361910020
353449010
009110014
352423730
301419750
301420730
351435160
954404590
CUP, FUEL COCK
1
1
1
1
*
*
*
SCREEN, FUEL COCK
RUBBER PACKING, FUEL COCK
HOLDER, FUEL COCK
18
PACKING, COCK FUEL, COCK HOLDER .... 1 ................REPLACES 953405640
HOSE BAND 9.5D
STRAINER
20
2
1
1
1
2
1
1
21
22
CAP ASSY, TANK
STRAP, FUEL TANK CAP
SCREW, PAN HEAD 8X10
HOSE, FUEL
28
29
41
42
FILTER, IN-LINE
43
HOSE BAND ........................................... 2 ................REPLACES 954403030
44
FUEL HOSE B-95
HOSE BAND 9.5D
1
2
45
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 31
MT-74F —TANK AND HANDLE ASSY.
TANK AND HANDLE ASSY. (NEW VERSION)
PAGE 32 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F —TANK AND HANDLE ASSY.
TANK AND HANDLE ASSY. (NEW VERSION)
NO
1
PART NO
361117750
955200052
091005025
022610505
351319900
014210020
033121009
012210020
361116910
011208030
022710809
030208200
952401450
954300720
353432250
351437785
954406020
954406420
954406010
361910070
PART NAME
QTY.
REMARKS
HANDLE .................................................. 1 ................S/N L1292 AND ABOVE
2-1
3-1
4
ROLLER, W/ PIN, SET
SCREW 5X25
FLANGE NUT
SHOCK ABSORBER
1
4
4
2
5
6-1
6-2
7
SOCKET HEAD BOLT 10X20T ............... 4 ................REPLACES 001521020
TOOTH LOCKEDWASHER BM10
BOLT 10X20 H, SW ................................ 4 ................REPLACES 002211020
FUELTANK
4
9-1
12
13
14
15
16
16-4
17
18
20
21
22
1
BOLT 8X30 T........................................... 2 ................REPLACES 001220830
NYLON NUT M8
WASHER, SW M8
2
2
WASHER 8.5X22X3 ................................ 2 ................REPLACES 953405640
FUEL COCK ASSY ................................. 1 ................S/N L1292 AND ABOVE
CAP
1
1
HOLDER, FUEL COCK
PACKING, FUEL TANK ........................... 1 ................S/N M2535 AND ABOVE
HOSE BAND 10.5
STRAINER
2
1
CAP ASSY, TANK ................................... 1 ................S/N M2535 AND ABOVE
INCLUDES ITEMS W/
S/N M2535 AND ABOVE
S/N M2535 AND ABOVE
*
22-1
22-2
361455740
920208960
353449010
009110014
031105080
351435160
351436350
301420730
301419750
SUB CAP
1
1
1
2
4
1
1
*
TAG, GASOLINE
STRAP, FUEL TANK CAP
SCREW, PAN HEAD 8X10
PW M5
28
29
*
30
42
43
44
45
FUEL HOSE B-95
FUEL HOSE R-150L D8
HOSE BAND ........................................... 2 ................. REPLACES 954403030
FUEL FILTER CP, MQ75MIC.
1
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 33
ROBIN EH-12-2D46051 ENGINE — CRANKCASE AND CYLINDER ASSY.
C
PAGE 34 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
ROBIN EH-12-2D46051 ENGINE — CRANKCASE AND CYLINDER ASSY.
CRANKCASE AND CYLINDER ASSY.
NO.
10
20+
26
PART NO.
PART NAME
QTY.
REMARKS
2521030111
2371420203
2371600801
0440250150
0600250010
0310060020
0105080480
0105060131
0013906600
0401140030
0211140020
2521110121
0440250160
0600250010
2274500301
2054190103
0108100020
2526360101
0213160020
2521700101
0566000250
0110060020
0130060200
2681300301
2531500123
0110080100
2521550203
2691600403
0310060020
0110060170
2521560110
2521560103
2521600103
2521610103
2521440113
0110060150
0043506120
2521700201
0011308160
2531600633
0011308160
2521800203
0011306160
2529900107
0440080010
CRANK CASE............................ 1 ...................... INCLUDES ITEMS W/ $
VALVE GUIDE, OVERSIZE
VALVE, STEM SEAL
OIL SEAL
2
1
1
1
2
2
1
1
2
2
30$
40$
50$
60+
70+
71+
80
BALL BEARING 6205C3
DOWEL PIN
STUD
STUD
STUD
PLUG
90
GASKET
210
220%
230%
250
260
265%
270
280
295
296
297
300
610
620
630
680
690
700
710
720
MAIN BEARING COVER CP ..... 1 ...................... INCLUDES ITEMS W/ %
OIL SEAL
1
1
1
1
2
1
1
1
1
1
8
BALL BEARINGS 6205C3
GOVERNOR GEAR COMPL
GOVERNOR SLEEVE
STUD
OIL GAUGE CP
GASKET
SUPPORT (M.B.C)
CLAMP
FLANGE BOLT
BOLT & WASHER ASSY
CYLINDER HEAD CP ................ 1 ...................... INCLUDES ITEMS W/ +
GASKET, HEAD
FLANGE BOLT
ROCKER COVER
GASKET, ROCKER COVER
DOWEL PIN
FLANGE BOLT EY45V
SPACER ASSY, BREATHER ..... 1 ...................... INCLUDES ITEMS W/
SPACER, BREATHER
LEAF VALVE
RETAINER PLATE
PLATE
FLANGE BOLT EH11
SCREW & WASHER
BRACKET CP (M.B.C)
BOLT & WASHER ASSY
GASKET, BREATHER COVER
BOLT & WASHER ASSY
RUBBER PIPE
BOLT AND WASHER ASSY
GASKET SET
OIL SEAL VC 8X14X4 .............. 1 ...................... S/N 2053173 AND ABOVE
1
4
1
2
2
4
*
721
1
1
1
1
2
1
1
1
1
2
1
2
1
*
722
*
723
*
724
*
725
*
815
726
*
816
830
840
850
860
970
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 35
ROBIN EH-12-2D46051 ENGINE — CRANKSHAFT AND PISTON ASSY.
CRA
ON
PAGE 36 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
ROBIN EH-12-2D46051 ENGINE — CRANKSHAFT AND PISTON ASSY.
CRANKSHAFT AND PISTON ASSY.
NO.
10
PART NO.
PART NAME
QTY.
REMARKS
EH122R0029
0230250110
0230250120
0230250130
0021814000
0032014000
0323030010
0053204201
0173120010
2522250110
2362300103
2682330103
2682340103
2682340203
2682340303
2522350107
2522350207
2522350307
2152500403
CRANKSHAFT CP
SPACER T=0.6
SPACER T=0.8
SPACER T=1.0
NUT
SPRINGWASHER
WOODRUFF KEY
WOODRUFF KEY
LOCK NUT
—111E— CRANKSHAFT AND PISTON
40
40
40
1
1
1
1
1
1
50
60
70
80
170
310
320
CONNECTING ROD ASSY........ 1 ...................... INCLUDES ITEM W/
*
CONNECTING ROD BOLT
PISTON PIN
PISTON STD.
PISTON O.S. 0.25MM
PISTON O.S. 0.50MM
PISTON RING SET STD
PISTON RING SET 0.25 O.S.
PISTON RING SET 0.50 O.S.
CLIP
2
1
1
1
1
1
1
1
2
*
350
360
360
360
370
370
370
380
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 37
ROBIN EH-12-2D46051 ENGINE—MUFFLER,AIR CLEANER,CAM& CARB.ASSY.
MUFFLER, AIR CLEANER, CAMSHAFT & CARBURETOR ASSY.
PAGE 38 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
ROBIN EH-12-2D46051 ENGINE—MUFFLER,AIR CLEANER,CAM& CARB.ASSY.
MUFFLER, AIR CLEANER, CAMSHAFT & CARBURETOR ASSY.
NO.
10
PART NO.
PART NAME
QTY.
REMARKS
2533170111
2273640103
0051904100
0031522000
2393330113
2533360103
13209KAO40
2683340103
2683350103
13210KAO31
2683530103
26136001A3
2693580103
0170060090
2693650103
2523040111
2523700111
2533520103
2523650103
0170080030
0011308160
0031108000
2523300311
0105060230
2523271110
2263272008
2523260107
2523261108
2523650203
1063291203
2273590103
0011406400
2363590303
0176060020
0011308180
0023706000
0200080080
0566000170
2526253110
CAMSHAFT CP ......................... 1 ...................... INCLUDES ITEMS W/
RELEASE LEVER
SPRING PIN
SNAP RING
TAPPET
*
35
1
1
1
2
2
2
1
1
4
2
2
2
2
1
1
1
2
1
2
4
2
*
36
*
37
*
50
60
VALVE SPRING
RETAINER VALVE SPRING
INTAKE VALVE
EXHAUST VALVE
COLLECT VALVE
PUSH ROD
ROCKER ARM
BOLT, PIVOT
NUT
GUIDE PLATE
MUFFLER CP
BRACKET CP
GASKET, MUFFLER
SPACER, EXHAUST
NUT
BOLT & WASHER ASSY
WASHER
INTAKE PIPE CP....................... 1 ...................... INCLUDES ITEM W/ $
STUD
AIR CLEANER ASSY ................ 1 ...................... INCLUDES ITEMS W/ %
GASKET (AIR CLEANER)
ELEMENT, SET
ELEMENT
PLATE, AIR CLEANER
INSULATOR
GASKET (INSULATOR)
BOLT AND WASHER ASSY
GASKET 2 (INSULATOR)
SELF LOCK NUT
70
80
90
95
210
220
230
240
260
310
330
340
341
350
360
362
500
505$
510
510-2%
520%
525%
530
540
555
556
560
570
580
590
595
596
999
2
1
1
1
1
1
1
1
2
2
1
BOLT & WASHER ASSY
FLANGE NUT ............................ 2 ...................... REPLACES 0023806000
WASHER
CLAMP
CARBURETOR ASSY
1
1
1
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 39
ROBIN EH-12-2D46051 ENGINE — GOVERNOR ASSY.
GOVERNOR ASSY.
PAGE 40 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
ROBIN EH-12-2D46051 ENGINE — GOVERNOR ASSY.
GOVERNOR ASSY.
NO.
10
PART NO.
PART NAME
QTY.
REMARKS
2524230303
2264230207
2544270101
2544280103
0031306000
0011406300
0186060020
2524250323
2524340220
0116040030
0043105250
0021705000
2054600323
0140040020
2264310101
2524420213
0110060030
2524280111
0011308160
0011306200
GOVERNOR LEVER CP
1
20
GOVERNOR SHAFT .................. 1 ...................... REPLACES 2274220103
30
GOVERNOR ROD CP
ROD SPRING
CLIP
BOLT & WASHER ASSY
NUT
GOVERNOR SPRING
SPEED CONTROL ASSY
BOLT
1
1
2
1
1
1
1
1
1
1
1
40
50
60
70
80
200
210
230
240
250
260
280
390
420
700
701
702
SCREW, PANHEAD
NUT
CONTROL SPRING
SCREW ...................................... 1 ...................... REPLACES 0043104250
LINK PIVOT
WIRE BRACKET
FLANGE BOLT
PROTECTOR CP, GOVERNOR 1
BOLT & WASHER ASSY
BOLT & WASHER ASSY
1
1
1
1
1
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 41
RECOIL STARTER AND BLOWER ASSY.
PAGE 42 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
ROBIN EH-12-2D46051 ENGINE —RECOIL STARTER AND BLOWER ASSY.
RECOIL STARTER AND BLOWER ASSY.
NO.
10
PART NO.
PART NAME
QTY.
1
1
REMARKS
2525165211
2069170103
2689520203
2689180203
0011406550
0110060140
2525270213
2685020100
2705011508
2695012008
2695011008
2615010008
2705012508
2275013108
2685014508
2705026108
2275015208
2069170103
0110060050
BLOWER HOUSING CP 2
LABEL, MIKASA MARK
20
23
LABEL, EMISSION CONTROL 1
35
LABEL, ENGINE NAME
BOLT & WASHER ASSY
FLANGE BOLT
1
4
2
1
40
45
90
HEAD COVER
210
210-1
210-2
210-3
210-4
210-5
210-6
RECOIL STARTER ASSY.......... 1 ...................... INCLUDES ITEMS W/
*
SPIRAL SPRING
REEL
STARTER ROPE
STARTER KNOB
RATCHET
FRICTION SPRING
STARTER PULLEY
RATCHET GUIDE
SET SCREW
1
1
1
1
2
1
1
1
1
1
*
*
*
*
*
*
210-11
210-35
210-49
217
*
*
*
LABEL, TRADEMARK
FLANGE BOLT .......................... 4 ...................... REPLACES 0110060010
220
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 43
ROBIN EH-12-2D46051 ENGINE — MAGNETO ASSY.
MAGNETO ASSY.
PAGE 44 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
ROBIN EH-12-2D46051 ENGINE — MAGNETO ASSY.
MAGNETO ASSY.
NO
10
PART NO
PART NAME
QTY.
REMARKS
2527933101
2697943001
0011406250
0660000371
0150040090
0566030010
0566000250
0659000010
0650140580
2307510113
FLYWHEEL CP
1
1
2
11
IGNITION COIL CP
BOLT & WASHER ASSY
STOP SWITCH ASSY (ON-OFF)1
TAPPING SCREW
CLAMP
CLAMP
SPARK PLUG CLIP ................... 1 ...................... REPLACES 0655000100
SPARK PLUG, BR6ES .............. 1 ...................... REPLACES 0650140100
SPARK PLUG CAP
30
60
70
2
1
1
75
90
95
100
110
1
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 45
ROBIN EH-12-2D46051 ENGINE — CARBURETOR ASSY.
CARBURETOR ASSY.
PAGE 46 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
ROBIN EH-12-2D46051 ENGINE — CARBURETOR ASSY.
CARBURETOR ASSY.
NO
PART NO
PART NAME
QTY.
REMARKS
210
2526253120
2526253508
2366252808
2376245108
2166230308
2376243508
2306244608
2526252108
2466243508
1616253008
2366245108
1616235208
2146251508
2366255208
2366245008
2366254008
2366250508
2526244008
2356242508
1616235308
2366235008
2366254108
2096244508
1616240008
2466255108
2356242508
2366244508
CARBURETOR ASSY. ............... 1 ...................... INCLUDES ITEMS W/
*
210-1
210-3
210-4
210-5
210-6
210-7
210-8
THROTTLE VALVE
CHOKE VALVE
SCREW
PILOT JET
PILOT SCREW
SPRING
CHOKE SHAFT
ADJUST SCREW
THROTTLE SHAFT
BOLT
NEEDLE
PIN
FLOAT CHAMBER BODY
PACKING
PACKING, CHAMBER
FLOAT
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
*
*
*
*
*
*
*
210-10
210-11
210-12
210-14
210-15
210-16
210-17
210-18
210-19
210-20
210-22
210-26
210-28
210-29
210-41
210-44
210-61
210-64
210-82
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
MAIN NOZZLE
GUIDE HOLDER
HOSE
SCREW
PACKING
SPRING
GUIDE HOLDER
CAP
MAIN JET
SPRING
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 47
TERMS AND CONDITIONS OF SALE — PARTS
PAYMENT TERMS
5. Partsmustbeinnewandresalablecon- Multiquipreservestherighttoquoteandsell
dition,intheoriginalMultiquippackage(if directtoGovernmentagencies,andtoOriginal
any), and with Multiquip part numbers Equipment Manufacturer accounts who use
Terms of payment for parts are net 30 days.
FREIGHTPOLICY
clearlymarked.
our products as integral parts of their own
products.
All parts orders will be shipped collect or
prepaidwiththechargesaddedtotheinvoice.
All shipments are F.O.B. point of origin.
Multiquip’sresponsibilityceaseswhenasigned
manifesthasbeenobtainedfromthecarrier,
andanyclaimforshortageordamagemustbe
settledbetweentheconsigneeandthecarrier.
6. Thefollowingitemsarenotreturnable:
SPECIALEXPEDITINGSERVICE
a. Obsolete parts. (If an item is in the
price book and shows as being re- A$35.00surchargewillbeaddedtotheinvoice
placedbyanotheritem,itisobsolete.) forspecialhandlingincludingbusshipments,
insuredparcelpostorincaseswhereMultiquip
mustpersonallydeliverthepartstothecarrier.
(such as gaskets, seals, “O” rings,
b. Any parts with a limited shelf life
andotherrubberparts)thatwerepur- LIMITATIONSOFSELLER’SLIABILITY
MINIMUMORDER
chasedmorethansixmonthspriorto
thereturndate.
Multiquip shall not be liable hereunder for
damagesinexcessofthepurchasepriceofthe
TheminimumchargeforordersfromMultiquip
is $15.00 net. Customers will be asked for
instructionsregardinghandlingofordersnot
meetingthisrequirement.
c. Anylineitemwithanextendeddealer item with respect to which damages are
netpriceoflessthan$5.00.
claimed, and in no event shall Multiquip be
liable for loss of profit or good will or for any
otherspecial,consequentialorincidentaldam-
ages.
d. Special order items.
RETURNEDGOODSPOLICY
e. Electricalcomponents.
f. Paint,chemicals,andlubricants.
g. Decalsandpaperproducts.
h. Itemspurchasedinkits.
Returnshipmentswillbeacceptedandcredit
willbeallowed,subjecttothefollowingprovi-
sions:
LIMITATIONOFWARRANTIES
Nowarranties,expressorimplied,aremade
in connection with the sale of parts or trade
accessoriesnorastoanyenginenotmanufac-
tured by Multiquip. Such warranties made in
connectionwiththesaleofnew,completeunits
are made exclusively by a statement of war-
rantypackagedwithsuchunits,andMultiquip
neitherassumesnorauthorizesanypersonto
assume for it any other obligation or liability
whatever in connection with the sale of its
products.Apartfromsuchwrittenstatementof
warranty, there are no warranties, express,
impliedorstatutory,whichextendbeyondthe
descriptionoftheproductsonthefacehereof.
1. AReturnedMaterialAuthorizationmust
be approved by Multiquip prior to ship-
ment.
7. Thesenderwillbenotifiedofanymaterial
receivedthatisnotacceptable.
2. ToobtainaReturnMaterialAuthorization,
alistmustbeprovidedtoMultiquipParts
Salesthatdefinesitemnumbers,quanti-
ties, and descriptions of the items to be
returned.
8. Suchmaterialwillbeheldforfiveworking
days from notification, pending instruc-
tions.Ifareplyisnotreceivedwithinfive
days,thematerialwillbereturnedtothe
senderathisexpense.
a. Thepartsnumbersanddescriptions
must match the current parts price
list.
9. Creditonreturnedpartswillbeissuedat
dealer net price at time of the original
purchase,lessa15%restockingcharge.
b. The list must be typed or computer
generated.
10. In cases where an item is accepted, for
which the original purchase document
can not be determined, the price will be
basedonthelistpricethatwaseffective
twelvemonthspriortotheRMAdate.
c. The list must state the reason(s) for
thereturn.
Effective: February 22, 2006
d. The list must reference the sales
order(s)orinvoice(s)underwhichthe
itemswereoriginallypurchased.
11. Credit issued will be applied to future
purchasesonly.
e. The list must include the name and
phonenumberofthepersonrequest-
ingtheRMA.
PRICINGANDREBATES
Prices are subject to change without prior
notice.Pricechangesareeffectiveonaspe-
cificdateandallordersreceivedonorafterthat
datewillbebilledattherevisedprice.Rebates
3. AcopyoftheReturnMaterialAuthoriza-
tionmustaccompanythereturnshipment.
4. Freight is at the sender’s expense. All forpricedeclinesandaddedchargesforprice
partsmustbereturnedfreightprepaidto increaseswillnotbemadeforstockonhand
Multiquip’sdesignatedreceivingpoint.
atthetimeofanypricechange.
PAGE 48 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
NOTE PAGE
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 49
OPERATION AND PARTS MANUAL
HERE’S HOW TO GET HELP
PLEASE HAVETHE MODEL AND SERIAL
NUMBER ON-HANDWHEN CALLING
UNITED STATES
Multiquip Corporate Office
18910 Wilmington Ave.
Carson, CA 90746
MQ Parts Department
800-427-1244
310-537-3700
Tel. (800) 421-1244
Fax (800) 537-3927
Fax:800-672-7877
Fax:310-637-3284
Contact: [email protected]
Mayco Parts
800-306-2926
310-537-3700
Warranty Department
800-421-1244, Ext. 279 Fax:310-537-1173
310-537-3700, Ext. 279
Fax:800-672-7877
Fax:310-637-3284
Service Department
800-421-1244
Technial Assistance
800-478-1244
Fax:310-537-4259
Fax:310-631-5032
310-537-3700
MEXICO
MQ Cipsa
UNITED KINGDOM
Multiquip (UK) Limited Head Office
Hanover Mill, Fitzroy Street,
Ashton-under-Lyne,
Carr. Fed. Mexico-Puebla KM 126.5
Momoxpan, Cholula, Puebla72760Mexico
Tel: (52) 222-225-9900
Fax: (52) 222-285-0420
Tel: 0161 339 2223
Fax: 0161 339 3226
Lancashire OL7 0TL
CANADA
Multiquip
BRAZIL
Multiquip
4110IndustrielBoul.
Laval, Quebec, Canada H7L 6V3
Tel: (450) 625-2244
Fax: (450) 625-8664
Av. Evandro Lins e Silva, 840 - grupo 505 Tel: 011-55-21-3433-9055
Barra de Tijuca - Rio de Janeiro Fax: 011-55-21-3433-9055
© COPYRIGHT 2007, MULTIQUIP INC.
Multiquip Inc, the MQ logo and the Mikasa logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other
trademarks are the property of their respective owners and used with permission.
This manual MUST accompany the equipment at all times. This manual is considered a permanent part of the equipment and should remain with the unit if resold.
The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data
contained in this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifications, design or
the information published in this publication at any time without notice and without incurring any obligations.
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