OPERATION AND PARTS MANUAL
PORTO-SCREED
MODEL PSH
EXPORT VERSION
ORIGINAL INSTRUCTIONS
MODEL #
SERIAL #
Revision #1 (03/17/04)
STOW CONSTRUCTION EQUIPMENT
A DIVISION OF MULTIQUIP
HANOVER MILL
FITZROY STREET
ASHTON-UNDER-LYNE
LANCASHIRE, OL7 OTL
Atlanta • Boise • Newark • Quebec, Canada
Manchester, UK • Rio de Janeiro, BR • Puebla, MX
UNITED KINGDOM
PH. 0161-339-2223
FAX. 0161-339-3226
E-MAIL: [email protected]
P/N 36505
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FOR HELP AND TECHNICAL ASSISTANCE
(UNITED KINGDOM AND EUROPE)
PLEASE HAVE THE MODEL AND SERIAL NUMBER
ON-HAND WHEN CALLING
PARTS/SERVICE/ WARRANTY
LANCASHIRE, OL7 OLT
UNITED KINGDOM (UK) CALL:
PHONE: 161-339-2223
FAX: 161-339-3226
Your Local Dealer is:
STOW CONSTRUCTION EQUIPMENT
A DIVISION OF MULTIQUIP
HANOVER MILL
FITZROY STREET
ASHTON-UNDER-LYNE
LANCASHIRE, OL7 OTL
Atlanta • Boise • Newark • Quebec, Canada
Manchester, UK • Rio de Janeiro, BR • Puebla, MX
UNITED KINGDOM
PH. 0161-339-2223
FAX. 0161-339-3226
E-MAIL: [email protected]
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PORTO-SCREED PSH—TABLE OF CONTENTS
STOW — PORTO-SCREED PSH
Help and Technical Assistance.................................. 3
Table of Contents/Introduction .................................. 4
Parts Ordering Procedures U.K. & Europe................ 5
Parts Ordering Procedures U.S. ............................... 6
Specifications (PSH) ................................................. 5
Specifications (Engine) ............................................. 6
Safety Message Alert Symbols .............................. 7-8
Rules For Safe Operation ....................................9-10
Operation And Safety Decals.................................. 11
Introduction/Intended Use ...................................... 12
Assembly................................................................. 13
Controls and Components ...................................... 13
Basic Engine ........................................................... 14
Pre-Inspection ......................................................... 15
Initial Start-Up ....................................................16-17
Operation ................................................................ 18
Maintenance ........................................................... 19
Troubleshooting (Engine)........................................ 20
Suggested Spare Parts ........................................... 21
Nameplate and Decals.......................................22-23
Assembly............................................................24-25
Terms and Conditions of Sale — Parts ................... 26
Specifications and part
numbers are subject to
change without notice.
PAGE 4 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH— SPECIFICATIONS (PSH)
A
C
B
Figure 1. PORTO-SCREED PSH Dimensions
Table 1. PORTO-SCREED PSH Trowel Specifications
Height
71.1 cm (28.0 in.)
61.0 cm (24 in.)
155 cm (61 in.)
13.4 m/s2
Width (Less screeding beams)
Length
Hand/Arm Vibration
Sound Pressure (A-Weighted)
Eccentric Speed
94 db
3000-4500 RPM
2400 RPM
Engagement Speed
273 lbs. (1215 N) @ 3000 RPM
615 lbs. (2737 N) @ 4500 RPM
Centrifugal Force
Maximum Screeding
Path Width
468 cm (16 Ft.) For One machine
61 cm (24 in.)
Weight
41 kg (90 lbs.)
NOTE:
1.
2.
The vibration level indicated is the maximum RMS (Root
Mean Square) value obtained at the handle grip while
operating the walk-behind PSH on dry sand in a manner
most often experienced in“normal”circumstances.Values
were obtained from all three axes of motion. The values
shown represent the maximum RMS value from these
measurements.
Sound pressure is a weighted measure. It is measured at
the operator's ear position while the walk-behind PSH is
operating at full throttle on concrete in a manner most often
experienced in “normal” circumstances. Sound pressure
may vary depending upon the condition of the concrete.
Hearing protection is always recommended.
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 5
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PORTO-SCREED PSH— SPECIFICATIONS (ENGINE)
Table 2. Engine Specifications
Model
HONDA GX120K1QX2
4-stroke, Overhead valve, Single Cylinder
60 mm x 42 mm
Type
Bore X Stroke
(2.4 in. X 1.7 in.)
Displacement
119 cc (7.3 cu. in.)
Max Output
2.9 kW (3.9 H.P.) at 3,600 R.P.M.
Approx. 2.5 Liters (0.66 U.S. Gallons)
1,400 +200/-150 R.P.M.
Unleaded Gasoline
Engine
Fuel Tank Capacity
Standard Idle Speed
Fuel
Lube Oil Capacity
Speed Control Method
Starting Method
0.60 Liters (0.63 U.S. Quarts)
Centrifugal Fly-weight Type
Recoil Start
297 X 341 X 318 mm
(11.7 x 13.4 X 12.5 in.)
Dimension
(L x W x H)
Dry Net
Weight
13.0 Kg. (28.7 lbs.)
PAGE 6 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH— SAFETY MESSAGE ALERT SYMBOLS
FORYOUR SAFETY ANDTHE SAFETY OF OTHERS!
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.
Lethal Exhaust Gases
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.
NOTE
This Owner's Manual has been developed to provide
complete instructions for the safe and efficient operation
of the STOW PORTO-SCREED.
For engine
maintenance information, please refer to the engine
manufacturers instructions for data relative to its safe
operation.
Before using this Porto-Screed, ensure that the
operating individual has read, understands, and
complies with all instructions in this manual.
Explosive Fuel
Gasoline is extremely flammable, and its
vapors can cause an explosion if ignited. DO
NOT start the engine near spilled fuel or
combustible fluids. 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. NEVER
use fuel as a cleaning agent.
SAFETY MESSAGE ALERT SYMBOLS
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,
WARNING, or CAUTION.
Burn Hazards
DANGER
You WILL be KILLED or SERIOUSLY INJURED
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.
if you DO NOT follow these directions.
WARNING
Rotating Parts
You CAN be KILLED or SERIOUSLY INJURED if
you DO NOT follow these directions.
NEVER operate equipment with covers, or
guards removed. Keep fingers, hands, hair
and clothing away from all moving parts to
prevent injury.
CAUTION
You CAN be INJURED if you DO NOT follow
these directions.
Potential hazards associated with PORTO-SCREED operation
will be referenced with Hazard Symbols which appear
throughout this manual, and will be referenced in conjunction
with Safety Message Alert Symbols.
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 7
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PORTO-SCREED PSH— SAFETY MESSAGE ALERT SYMBOLS
Respiratory Hazard
ALWAYS wear approved respiratory protection.
Sight and Hearing hazard
ALWAYS wear approved eye and hearing
protection.
Equipment Damage Messages
Other important messages are provided throughout this manual
to help prevent damage to your PSH, other property, or the
surrounding environment.
The "NOTE" symbol will be used
whenever important or special
information should be referenced.
NOTE
PAGE 8 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH — RULES FOR SAFE OPERATION
RULES FOR SAFE OPERATION
■
NEVER operate this equipment when not feeling well due to
fatigue, illness or taking medicine.
CAUTION
■
NEVER operate the PSH under the influence or drugs or
alcohol.
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.
■
ALWAYS check the PSH for loosened nuts or bolts before
starting
■
NEVER touch the hot exhaust manifold, muffler
or cylinder. Allow these parts to cool before
servicing the PSH.
The following safety guidelines should always be used when
operating the PORTO-SCREED.
■
High Temperatures – Allow the engine to
cool before adding fuel or performing service
and maintenance functions. Contact with hot!
components can cause serious burns.
SAFETY
■
ALWAYS read, understand, and follow
procedures in Operator’s Manual before
attempting to operate or service this
equipment. Make sure the operating
instructions are available and accessible
to the operator.
■
The engine of this PSH requires an adequate free flow of
cooling air. NEVER operate the PSH in any enclosed or narrow
area where free flow of
the air is restricted. If
the air flow is restricted
■ This equipment should not be operated by persons under the
minimum statutory age limit.
it will cause serious
damage to the engine
and may cause injury
to people. Remember
the engine gives off
■
NEVER use this machine for any purpose other than those
described in this manual.
DEADLY
carbon
monoxide gas.
■
NEVER operate the PSH without proper protective clothing,
shatterproof glasses, steel-toed boots and other protective
devices required by the job.
■
ALWAYS refuel in a well-ventilated
area, away from sparks and open
flames.
■
NEVER operate the PSH in an
explosive atmosphere or near
combustible materials. An explosion or
fire could result causing severe bodily
harm or even death.
■
Manufacturer does not assume responsibility for any accident
due to equipment modifications. Unauthorized equipment
modification will void all warranties. Any modification which
could lead to a change in the original characteristics of the
machine should be made only by the manufacturer who shall
confirm that the machine is in conformity with appropriate
safety regulations.
■
ALWAYS use extreme caution when working with flammable
liquids. When refueling, stop the engine and allow it to cool.
■
NEVER smoke around or near the machine.
Fire or explosion could result from fuel
vapors, or if fuel is spilled on a hot! engine.
■
ALWAYS wear proper respiratory (mask), hearing and eye
protection equipment when operating the PSH.
■
■
■
Topping-off to filler port is dangerous, as it tends to spill fuel.
ALWAYS close the fuel shut-off valve before refueling.
NEVER use engine fuel as a cleaning agent.
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 9
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PORTO-SCREED PSH — RULES FOR SAFE OPERATION
Maintenance Safety
■
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
■
■
NEVER lubricate components or attempt service on a running
machine.
■
NEVER Run engine without air filter. Severe engine damage
may occur. Service air filter frequently to prevent carburetor
malfunction.
ALWAYS allow the machine a proper amount of time to cool
before servicing.
■
AVOID wearing jewelry or loose fitting clothing that may snag
on the controls or moving parts as this can cause a serious
injury.
■
■
Keep the machinery in proper running condition.
Fix damage to the machine immediately and always replace
broken parts.
■
■
ALWAYS keep clear of rotating or moving parts while
operating the PSH.
■
■
Dispose of hazardous waste properly.Examples of potentially
hazardous waste are used motor oil, fuel and fuel filters.
Moving Parts – Shut down the engine before performing
service or maintenance functions. Contact with moving parts
can cause serious injury.
DO NOT use food or plastic containers to dispose of
hazardous waste.
■
■
■
ALWAYS clear the work area around the screed of debris
and obstructions to prevent tripping and/or falling onto the
screed.
Emergencies
■ ALWAYS know the location of the nearest fire extinguisher.
NEVER leave the machine unattended while running, even
for a brief moment. DO NOT leave the screed until it comes
to a complete stop.
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.
■ ALWAYS know the location of the nearest and first aid kit.
■ ALWAYS use factory authorized parts for replacement.
■
Refer to the HONDA Engine Owner's Manual for engine
technical questions or information recommended by the
manufacturer for this equipment. Damage to the equipment
and/or injury to user may result.
■
No one other than the operator is to be in the working area
when the porto-screed is in operation.
■
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.
■
Always observe all applicable compulsory regulations
relevant to environmental protection, especially, fuel storage,
the handling of hazardous substances, and the wearing of
protective clothing and equipment. Instruct the user as
necessary, or, as the user, request this information and
training.
Transporting
■
■
ALWAYS shutdown engine before transporting.
Tighten fuel tank cap securely and close fuel cock to prevent
fuel from spilling.
■
■
■
Drain fuel when transporting PSH over long distances or
bad roads.
When placing the PSH inside a truck-bed for transport,
always tie-down the PSH.
ALWAYS use proper lifting techniques when moving the PSH.
PAGE 10 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH— OPERATION AND SAFETY DECALS
OPERATION AND SAFETY DECALS
The PORTO-SCREED walk-behind PSH is equipped with a number of operation and safety decals.These decals are provided for
operator safety and maintenance information. Should anyof these decals become unreadable, replacements can be obtained from
your dealer.
WARNING
To avoid injury,
you MUST read
and understand
operator’s manual
before using this
machine.
A
“BELT DRIVE”
CLOCKWISE
BELT DRIVE
This machine to
be operated by
qualified
personnel only.
GEAR DRIVE GEAR DRIVE
Ask for training
as needed.
P/N 35137
P/N 20109-001
B
“CHECK”
P/N 35137
CHECK
CHECK
WARNING!
MODEL
SERIAL NO.
C
“HOT”
COUNTER
CLOCKWISE
HOT
CONTACT
SERVICE
DEPARTMENT
KEEP GUARDS
IN PLACE
P/N 21302
LIFTING POINT LIFTING POINT
D
“LUBRICATION”
LUBRICATION
LUBRICATION
P/N 20525
A
P/N 13118
P/N 21571
LUBRICATION
LUBRICATION
DECAL SHEET
INTL STDS ISO
P/N 11246
P/N 36099 (ISO Blue)
P/N 25263-001
Figure 2. PORTO-SCREED PSH Decals
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 11
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PORTO-SCREED PSH— INTRODUCTION
INTENDED USE
Operate the PSH Porto-Screed and components in accordance
with the manufacturer's instructions. Any use other than for stated
operation is considered contrary to designated use.The risk of
such use lies entirely with the user. The manufacturer cannot be
held liable for damages as a result of misuse.
INTRODUCTION
The STOW MODEL PSH PORTO-SCREED is designed for
vibration screeding concrete.Vibration screeding with the STOW
Porto-screed is the ideal way to strike-off and vibrate concrete
sidewalks, floors, patios, and even bridge decks.
The PSH Porto-Screed incorporates a variety of features that
provide for ease of use. Among these are a throttle that allows
selection of the appropriate vibration required for proper
screeding, a free-swing handle, a handle-stop on the frame, a
centrifugal clutch, recoil engine starter and a remote throttle
control mounted on the handle within easy reach of the operator.
Figure 3. STOW Model PSH Porto-Screed
PAGE 12 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH— ASSEMBLY
ASSEMBLY
WARNING
CONTROLS AND COMPONENTS
Whenever assembling, lubricating or adjusting any part of the
screed, make certain the engine is stopped with the spark plug
wiredisconnectedandsecuredawayfromcontactwiththespark
plug.
1. Handle Assembly – Gather all handle parts shown in the
illustration below. Place them in front of the machine (side
farthest from the engine). See Figure 4.
Figure 5. Controls and Components
Figures 5 shows the location of the basic controls or components,
for the PORTO-SCREED PSH.Listed below is a brief explanation
of each control or component
1.
Throttle Control Lever – Controls the speed of the engine.
Move the hand lever towards the operator to increase
engine speed (high), away from the operator to decrease
engine speed (low).
2.
3.
Handle Bar – When operating the PSH, place both hands
on the bar to maneuver the PSH.
Engine – This PSH uses a Honda GX120 gasoline
engine. See following sections on engine components
and engine operation.
Figure 4. Handle Assembly
4.
Frame – Supports engine and handle assemblies; allows
clamping to screeding beams.
2. Slip throttle cable "O-ring" (A) over the right handle rod (B).
3.
Slide the handle bar (C) over the handle rods. Ensure the
side with the two holes are to the right.
4.
Fasten the handle bar to the left handle rod (D) using bolt
and nut (E and F). Fasten handle bar (with throttle control
lever) to the right handle rod. Fasten the throttle control
lever (G) to the handle bar with pan head screws (H).
CAUTION
NEVER attempt to lift the PSH by yourself.ALWAYS get the
assistance of another person to help lift the PSH .
5.
Insert the flanged spacer (I) into the holes located in the
flattened portions of the handle rods making sure the
flanged end of both spacers are toward the outside.
6.
7.
Insert bolts (J) through the handle rods and the main frame
(K). Install the lockwasher and nut (L and M) to both bolts.
Moving the PSH
Connect throttle wire (N) to the engine. Follow instructions
in the engine manual for proper attachment.
This PSH is light weight, however for safety purposes always
use two people to lift the PSH up onto a slab of concrete.
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 13
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PORTO-SCREED PSH— BASIC ENGINE
Figure 6. Engine Controls and Components
INITIAL SERVICING
6. Choke Lever – Used in the starting of a cold engine, or in
cold weather conditions. The choke enriches the fuel
mixture.
The engine (Figure 6) 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. The
engine shown above is a HONDA engine, operation for other
types of engines may vary somewhat.
7. 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.
1. Fuel Filler Cap – Remove this cap to add unleaded
gasoline to the fuel tank. Make sure cap is tightened
securely. DO NOT over fill.
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.
NOTE
DANGER
8. Spark Plug – Provides spark to the ignition system. Clean
Adding fuel to the tank should be done only
when the engine is stopped and has had an
opportunity to cool down. In the event of a fuel
spill, DO NOT attempt to start the engine until
the fuel residue has been completely wiped up,
and the area surrounding the engine is dry.
spark plug once a week.
9. Muffler – Used to reduce noise and emissions.
WARNING
Enginecomponentscangenerateextremeheat.
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.
2. Throttle Lever – Used to adjust engine RPM speed (lever
advanced forward SLOW, lever back toward operator
FAST).
3. Engine ON/OFF Switch – ON position permits engine
10. Fuel Tank – Holds unleaded gasoline. For additional
information refer to engine owner's manual.
11. Oil Drain Plug – Remove this plug to remove oil from the
engine's crankcase.
starting, OFF position stops engine operation.
4. Recoil Starter (pull rope) – Manual-starting method. Pull
the starter grip until resistance is felt, then pull briskly and
smoothly.
12. Dipstick/Oil Filler Cap – Remove this cap to determine if
the engine oil is low. Add oil through this filler port as
recommended in Table 3.
5.
FuelValve Lever – OPEN to let fuel flow, CLOSE to stop
the flow of fuel.
PAGE 14 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH— PRE-INSPECTION
PRE-INSPECTION
CAUTION
Reference manufacturer engine
manual for specific servicing
instructions.
NEVER operate the PSH in a confined area
or enclosed area structure that does not
provide ample free flow of air.
ALWAYS wear approved eye and hearing
protection before operating the PSH.
Before Starting
Figure 8. Engine Oil Dipstick (Oil Level)
1.
2.
Read safety instructions at the beginning of manual.
Clean the PSH, removing dirt and dust, particularly the
engine cooling air inlet, carburetor and air cleaner.
Table 3. Oil Type
Temperature
3.
4.
5.
Check the air filter for dirt and dust. If air filter is dirty, replace
air filter with a new one as required.
Season
Summer
Spring/Fall
Winter
Oil Type
SAE 10W-30
SAE 10W-30/20
SAE 10W-10
25°C or Higher
25°C~10°C
Check carburetor for external dirt and dust. Clean with dry
compressed air.
Check fastening nuts and bolts for tightness.
0°C or Lower
Engine Oil Check
1.
To check the engine oil level, place the PSH on secure
level ground with the engine stopped.
DANGER
Fuel Check
2.
Remove the filler dipstick from the engine oil filler hole
(Figure 7) and wipe clean.
Motor fuels are highly flammable and can
be dangerous if mishandled. DO NOT
smoke while refueling. DO NOT attempt to
refuel the PSH if the engine is hot! or
running.
1. Remove the gasoline cap located on top of fuel tank.
2. Visuallyinspecttoseeiffuellevelislow. Iffuelislow,replenish
with unleaded fuel.
3. When refueling, be sure to use a strainer for filtration. DO
Figure 7. Engine Oil Dipstick (Removal)
NOT top-off fuel. Wipe up any spilled fuel.
3. Insertandremovethedipstickwithoutscrewingitintothefiller
neck. Check the oil level shown on the dipstick.
V-Belt Check
A worn or damagedV-belt can adversely affect the performance
of the PSH.If a V-belt is defective or worn simply replace theV-
belt as outlined in the maintenance section of this manual.
4. If the oil level is low (Figure 8), fill to the edge of the oil filler
holewiththerecommendedoiltype(Table3).Maximum oil
capacity is .56 liters (0.59 quarts).
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 15
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PORTO-SCREED PSH — INITIAL START-UP
INITIAL START-UP
Lifting and Moving the PSH
EventhoughthePSHislightweight,alwaysusetwopeoplewhen
lifting or moving the PSH.
This section is intended to assist the operator with the initial
start-up of the PSH. It is extremely important that this section be
read carefully before attempting to use the PSH in the field.
DO NOT attempt to operate the PSH until the
Safety, General Information and Inspection
sections of this manual have been read and
thoroughly understood.
Figure 11. Engine Choke Lever
4. Place thechokelever(Figure12)inthe"OPEN"positionif
starting a warm engine or the temperature is warm.
Starting the Engine
1. Place the engine fuel valve lever (Figure 9) to the "ON"
position.
Figure 12. Engine Choke Lever (Open)
Figure 9. Engine Fuel Valve Lever
5. Place the engine ON/OFF switch (Figure 13) in the "ON "
position.
2. Place the trowel's throttle lever (Figure 10) to the "IDLE"
position.
Figure 10. Throttle Lever (Idle Position)
Figure 13. Engine ON/OFF Switch
3. Placethechokelever(Figure11)inthe"CLOSED"position
if starting a cold engine.
PAGE 16 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH — INITIAL START-UP
6. Grasp the starter grip (Figure 14) and slowly pull it out.The
Stopping The Engine
resistancebecomesthehardestatacertainposition,corre-
spondingtothecompressionpoint.Pullthestartergripbriskly
andsmoothlyforstarting.
1. Movethethrottlelever tothe IDLE orSLOWposition (Figure
15) and run the engine for three minutes at low speed.
2. Aftertheenginecools,turntheenginestart/stopswitchtothe
“OFF” position (Figure 16).
Figure 14. Starter Grip
Figure 16. Engine ON/OFF Switch (OFF Position)
7. If the engine has started, slowly return the choke lever
(Figure12)totheOPEN position.Iftheenginehasnotstarted
repeat steps 1 through 6.
3. Closethefuelshut-offvalve (Figure17)bymovingthefuel
valve lever to the OFF position.
8. Before the PSH is placed into operation, run the engine for
severalminutes. Checkforfuelleaks,andnoisesthatwould
associate with a looseV-belt cover or component.
Figure 17. FuelValve Lever (OFF Position)
Figure 15. Throttle Lever (Run Position)
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 17
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PORTO-SCREED PSH — OPERATION
OPERATION
4. Start the engine as previously described. Refer to the
Engine Manual Starting Instructions for complete starting
instructions of the engine. Allow the engine to warm up 1-2
minutes before operating.The throttle lever should be set
to permit the engine to warm up WITHOUT engaging the
centrifugal clutch and causing the machine to vibrate and
move forward under its own power.
1. Place the machine on the screeding beams (Items B,
Figure 18) and install the clamping studs (Items A).
CAUTION
Do not over tighten the clamping studs. Check the clamping
studs periodically during operation and retighten them if
they loosen.
5. To begin operation move the throttle lever (Item C, Figure
18) to the high speed or “Full Throttle” position quickly to
prevent damage from occurring to the clutch.The “Full
Throttle” position of this machine has been pre-set at the
factory.
For beam lengths up to 14 ft. (4.2
meters) "2x4" wooden or
NOTE
lightweight beams are
DO NOT alter.this setting since
damage to the eccentric bearings
can result and both the engine
and machine warranty will be
automaticallyVOIDED.
recommended. For longer lengths,
up to 20 ft. (6 meters), "2x6" beams
should be used.
NOTE
C
Stopping The Engine
1. Movethethrottlelever tothe IDLE orSLOWposition (Item
C, Figure 15) and run the engine for three minutes at low
speed.
B
2. Aftertheenginecools,turntheenginestart/stopswitchtothe
“OFF” position (Figure 16).
A
Figure 18. Screeding Beams
2. Position the screed on the forms with the eccentric facing
the desired direction of travel.
3. Pour the concrete into the forms to a height just above the
bottom edge of the sceeding beams and at least 10 ft.
ahead of the unit.
PAGE 18 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH — MAINTENANCE
MAINTENANCE
C
B
A
See the engine manual supplied with your
machine for appropriate engine maintenance
schedule and troubleshooting guide for
problems.
E
D
CAUTION
ALWAYS allow the engine to cool before
servicing. NEVER attempt any maintenance
work on a hot! engine.
WARNING
Whenever assembling, lubricating, cleaning or adjusting any
part of the screed, make certain the engine is stopped with the
spark plug wire disconnected and secured away from contact
with the spark plug.
Figure 19. V-BeltTensioning
Cleaning
Lubrication
Clean the machine following each screeding operation before
A. Engine: Lubricate the engine-refer to the “Engine Manual”.
Always check the engine for proper level of engine oil. The
engine warranty is VOID if run without oil. Check the oil level
daily and change the oil weekly.
B. Clutch: A few drops of lightweight oil occasionally squirted
between the clutch mechanism cover and the floating cone will
help keep the mechanism free of debris and is the only clutch
maintenance required
concrete is allowed to dry on the machine.This is especially
important on the clamping stud threads. Keeping the belt
guard in place during operation not only provides a measure
of safety, but also helps to protect the eccentric, centrifugal
clutch, and belt from foreign matter.
General
C. Pillow Block Bearings: After every 40 hours of
operation, remove the belt guard (Item B, Figure 18) and
grease each bearing (Item D) with quality grade multi-
purpose grease.
Check for broken or missing componenst before each use.
Check all bolts for tightness before each use.Tighten if
necessary.
V-BeltTensioning
MAINTENANCE SCHEDULE
Daily (8-10 Hours)
To tension the V-Belt (Item A, Figure 19)perform the following:
1.
2.
Check the oil level in the engine crankcase; fill as necessary.
CheckV-belt.
1. Remove the belt guard (Item B).
2. Loosen the four (4) bolts (Item C) and slide the pillow
block (Item D) away from or toward the engine to tighten or
loosen theV-Belt until proper tension is achieved.
Weekly (50-60 Hours)
1.
2.
Check the engine air filter and replace as necessary.
Replace engine oil and filter as necessary, see engine
manual.
NOTE: Before retightening the pillow block bolts, be sure to
align the eccentric assembly (Item E) perpendicular to the belt.
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 19
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PORTO-SCREED PSH — TROUBLESHOOTING (ENGINE)
TABLE 4. TROUBLESHOOTING (ENGINE)
SYMPTOM
POSSIBLE CAUSE
SOLUTION
Check gap, insulation or
replace spark plug.
Spark plug bridging?
Carbon deposit on spark plug?
Clean or replace spark plug.
Difficult to start, "fuel is available, but no
SPARK at spark plug".
Short circuit due to deficient spark plug
insulation?
Check spark plug insulation,
replace if worn.
Improper spark plug gap?
ON/OFF switch is shorted?
Ignition coil defective?
Set to proper gap.
Check switch wiring, replace
switch.
Replace ignition coil.
Set correct spark gap and
clean points.
Difficult to start, "fuel is available, and
SPARK is present at the spark plug".
Improper spark gap, points dirty?
Condenser insulation worn or short
circuiting?
Replace condenser.
Replace defective spark plug
wiring.
Spark plug wire broken or short circuiting?
Wrong fuel type?
Flush fuel system, and replace
with correct type of fuel.
Water or dust in fuel system?
Air cleaner dirty?
Flush fuel system.
Replace air cleaner.
Close Choke.
Difficult to start, "fuel is available, spark
is present and compression is normal".
Choke Open? (Engine cold)
Choke Closed? (Engine warm)
Suction/exhaust valve stuck or protruded?
Open Choke.
Re-seat valves.
Replace piston rings and or
piston.
Piston ring and/or cylinder worn?
Difficult to start, "fuel is available, spark
is present and compression is low".
Cylinder head and/or spark plug not
tightened properly?
Torque cylinder head bolts and
spark plug.
Head gasket and/or spark plug gasket
damaged?
Replace head and spark plug
gaskets.
Fuel not available in fuel tank?
Fuel filter clogged?
Fill with correct type of fuel.
Replace fuel filter.
No fuel present inside priming bulb.
Fuel tank cap breather hole clogged?
Air in fuel line?
Clean or replace fuel tank cap.
Bleed fuel line.
PAGE 20 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH — SUGGESTED SPARE PARTS
SUGGESTED SPARE PARTS
PORTO-SCREED PSH
1 TO 3 UNITS WITH HONDA GX120K1QX2 ENGINE
1 to 3 Units
Qty...... P/N ........................Description
1 ...........30033-401............ CABLE, THROTTLE ASM
4 ...........22094-006............ O-RING (FASTENER)
4 ...........1162 A .................. CAP, GREASE ZERK
3 ...........07055-028............ V-BELT 4L280
3 ...........19977 ................... KNOB, CLAMP
1 ...........17620ZH7023...... TANK CAP (HONDA)
2 ...........17210ZE1505 ...... AIR CLEANER ELEMENT
3 ...........9807956846 ......... SPARK PLUG
1 ...........28462ZH8003...... ROPE, RECOIL STARTER
The contents of this parts catalog
are subject to change without
notice.
NOTE
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 21
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PORTO-SCREED PSH — NAMEPLATE AND DECALS
NAMEPLATE AND DECALS
A
CLOCKWISE
BELT DRIVE
GEAR DRIVE GEAR DRIVE
3
B
C
CHECK
CHECK
4
COUNTER
CLOCKWISE
P/N 36099 (ISO Blue)
HOT
DECAL SHEET
INTL STDS ISO
P/N 11246
1
LIFTING POINT LIFTING POINT
WARNING!
D
2
LUBRICATION
LUBRICATION
KEEP GUARDS
IN PLACE
P/N 20525 SM
1-1/2 x 2-1/4
P/N 21302
B
8
LUBRICATION
LUBRICATION
“CHECK”
C
MODEL
SERIAL NO.
A
“HOT”
“BELT DRIVE”
CONTACT
SERVICE
DEPARTMENT
9
!
G
IN
N
R
A
W
S
D
E
C
R
A
A
L
U
G
P
IN
E
E
K
P
D
E
R
W
O
P
D
E
C
O
T
A
P/N 35137
5
P/N 11092
10
6
D
LUBRICATION
P/N 20109-001
“LUBRICATION”
7
A
P/N 25263-001
P/N 13118
PAGE 22 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH — NAMEPLATE AND DECALS
NAMEPLATE AND DECALS
NO.
1
PART NO.
21302
PART NAME
QTY. REMARKS
DECAL: GUARDWARNING .................................. 1 ....... SAFETY ITEM
2
20525 SMALL DECAL: WARNING, CA PROP 65......................... 1 ....... SAFETY ITEM
3
4
36099
11246
DECAL: HELMET, SHOE AND GLOVE ................ 1 ....... SAFETY ITEM
DECAL: SHEET-INTERNATIONAL STANDARDS.. 1 ....... SAFETY ITEM
5
6
7
20109-001
25263-001
13118
DECAL: STOW PORTO-SCREED
DECAL: CAUTION GAS VIB ................................. 1 ....... SAFETY ITEM
DECAL: POWDER COATED
1
1
8
NAME PLATE ........................................................ 1 ....... CONTACT PARTS DEPARTMENT
9
10
35137
11092
DECAL: WARNING, READ MANUAL .................... 1 ....... SAFETY ITEM
DECAL: CE
1
SEE DECAL ILLUSTRATIONS ON PAGE 11
The contents of this parts
catalog are subject to
change without notice.
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 23
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PORTO-SCREED PSH — ASSEMBLY
ASSEMBLY
33
32
36
31
37
19
20
1
26
5
2
6
30
34
3
4
22
5
6
21
7
8
9
15
18
19
16
20
17
29
14
11
10
23
15
24
13
12
35
25
5
8
7
19
27
28
PAGE 24 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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PORTO-SCREED PSH — ASSEMBLY
ASSEMBLY
NO.
1
2
3
4
5
6
7
8
PART NO.
PART NAME
ENGINE, 4 HP. HONDA GX120K1QX2
CLUTCH
QTY.
1
1
REMARKS
21387
12704-304
18241-301
0655
0161 C
0300 B
0949
0181 B
15488-001
5283
08297-008
0477
BELT GUARD ...................................................... 1 ......... SAFETY ITEM
SCREW, HHC 5/16 - 18 X 3/4"
LOCKWASHER 5/16”
FLAT WASHER 5/16”
HEX NUT 1/4- 20
3
9
7
8
8
1
4
1
1
1
LOCKWASHER 1/4”
9
PLATE, ENGINE MOUNT
NUT, NYLOC 5/16 - 18
NUT, LOCK 1/2 - 20 GRIPCO
FLATWASHER, 1/2
PULLEY, AS20 X 5/8
PULLEY, 1/8" KEYWAY ...................................... 1 ......... SERVICE ONLY
10
11
12
13
13A
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
36493
07051-017
07055-028
27023-001
1162 A
4001
1284
36494
21101-002
0202
13658-001
4014
11679-001
0161 D
0105
12706-401
19977
11831-001
36491
36492
12714-006
30033-401
22094-006
36499
V-BELT4L280
1
2
2
4
1
1
1
2
2
2
4
2
4
1
6
1
2
1
2
1
2
BEARING, P-BLOCK
CAP, GREASE ZERK #2
FLAT WASHER 3/8”
SCREW, HHCS 3/8- 16 X 1”
KEY WOODRUFF #6
SPINDLE, ECCENTRIC
SCREW, HHC 5/16 - 18 X 3/4"
SPACER, HANDLE
SCREW, 2 - 3/16 P-K TYPE U-DRIVE
MOUNT, ISOLATION
NUT, HEX 5/16 X 18
SCREW, HHC 5/16- 18 X 1-1/2”
FRAME
KNOB, CLAMP
SPACER, ECCENTRIC PULLEY
TUBE, HANDLE LEG
TUBE, HANDLE
SCREW, PHSHT METAL 10 X 3/8 SLOTTED
CABLE, THROTTLE ASM
O-RING
PLATE, LOWER BELT GUARD ........................... 1 ......... SAFETY ITEM
DEFLECTOR, EXHAUST .................................... 1 ......... SAFETY ITEM
SCREW, HHST 8-32 X 3/8
1834
1273
2
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 25
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Effective: July 15, 2003
ffectiv: J200
TERMS AND CONDITIONS OF SALE — PARTS
Terms and Conditions of Sale
TERMS AND CONDITIONS OF
STOW Construction Equipment
SALE — PARTS
DROP SHIPMENTS
PAYMENT TERMS
The sender will be notified of any material
received that does not meet the above
provisions. Such material will be held for 30
days from notification pending instructions. If a
reply is not received within 30 days, the material
will be returned to the sender at his expense
with no credit issued.
STOW reserves the right to refuse Drop
Shipments outside the normal service area of
the purchasing dealer.
Terms of payment for unit sales are 2% 15
days net 30 days from date of invoice unless
otherwise specifically stated on our invoice.
Parts invoices have terms of net 10 days.
Minimum parts billing is $15.00 net.
Applicable discounts will be computed on
merchandise value only. Late charges will be
assessed at prevailing rates. Cash discounts
cannot be taken on current billings if any
previously billed amounts are past due.
FIELDWAREHOUSES
Field Warehouses are currently located in
California, Georgia, Idaho, Iowa, and New
Jersey
PRICING, REBATES AND
SPECIFICATIONS
SPECIAL EXPEDITING SERVICE
Every effort will be made to provide adequate
notice of changes; however, prices and
equipment specifications are subject to change
without notice.
The higher of a $35.00 surcharge or actual
costs will be added to the invoice for special
handling, including bus shipments, or in cases
where STOW personnel must personally deliver
the equipment or parts to the carrier.
FREIGHT POLICY
Freight policy is established to offer customers
every advantage possible. Due to bulk freight
ratings on some equipment and other shipping
considerations, freight policies differ by
equipment type. Actual back freight may be
charged for shipments originating from other
than specified FOB warehouses. See Freight
Policy for details.
All STOW domestic sales are FOB nearest
available designated MQ/STOW warehouse.
Export orders are ex-works factory located in
Carson, CA or Boise, ID.
Price changes are effective on a specific date
and all orders received on or after that date will
be billed at the revised price.
RETURNED GOODS POLICY
Rebates for price reductions and added charges
for price increases will not be made for stock in
dealer inventory at the time of a price change.
1. A Returned Material Authorization (RMA)
must be approved by STOW prior to
shipment. Approvals for returned goods
must be with just cause and are at the
sole discretion of STOW. A copy of the
Authorization must accompany the ship-
ment to the designated Warehouse.
STOW reserves the right to quote and sell direct
to Government agencies and to Original
Equipment Manufacturer accounts who use our
products as integral parts of their own products.
2. Parts being returned must be listed as
currently supplied on the current parts list.
LIMITATION OF SELLER’S LIABILITY
Additions to orders already shipped cannot be
accepted for freight minimums.
STOW shall not be liable hereunder for damages
in excess of the purchase price of the item with
respect to which damages are claimed and in
no event shall STOW be liable for loss of profit
or good will or for any other special,
consequential or incidental damages.
3. Parts must be in new and resalable
condition in the original package, with part
numbers clearly marked.
Should STOW elect to make partial shipments
of an order originally complying with the “freight
allowed” requirements, transportation charges
will be absorbed by STOW on any subsequent
shipment applying to that order.
4. Units and accessories must be current
models in the latest price list and in new
and resalable condition.
LIMITATION OF WARRANTIES
All other orders will be shipped collect or prepaid
with charges added to the invoice. STOW’s
responsibility ceases when a signed manifest
has been obtained from the carrier, and any
claim for shortage or damage must be settled
between the consignee and the carrier.
5. Special order items are not returnable for
credit.
There are no warranties, express or implied,
made by STOW. hereunder on Products
manufactured or distributed by it except the
warranty against defects in material and
workmanship on new Products to the original
purchaser, as set forth in the STOW New
Product Limited Warranty.
6. Credit on returned parts and units will be
issued at actual dealer net price at time of
purchase less 15% restocking charge.
7. All returned shipments are to be made to
the STOW designated receiving point,
freight prepaid at the sender’s expense.
Parts: FOB Carson, California or Boise,
Idaho. See Freight Policy for details and
additional discounts.
STOW CONSTRUCTION EQUIPMENT
A DIVISION OF MULTIQUIP
HANOVER MILL
FITZROY STREET
ASHTON-UNDER-LYNE
LANCASHIRE, OL7 OTL
UNITED KINGDOM
PH. 0161-339-2223
FAX. 0161-339-3226
E-MAIL: [email protected]
Atlanta • Boise • Newark • Quebec, Canada
Manchester, UK • Rio de Janeiro, BR • Puebla, MX
PAGE 26 — STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04)
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NOTE PAGE
STOW PORTO-SCREED — OPERATION & PARTS MANUAL — REV. #1 (03/17/04) — PAGE 27
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OPERATION AND PARTS MANUAL
FOR HELP AND TECHNICAL ASSISTANCE
(UNITED KINGDOM AND EUROPE)
PLEASE HAVE THE MODEL AND SERIAL NUMBER
ON-HAND WHEN CALLING
PARTS/SERVICE/ WARRANTY
LANCASHIRE, OL7 OLT
UNITED KINGDOM (UK) CALL:
PHONE: 161-339-2223
FAX: 161-339-3226
STOW CONSTRUCTION EQUIPMENT
A DIVISION OF MULTIQUIP
HANOVER MILL
FITZROY STREET
ASHTON-UNDER-LYNE
LANCASHIRE, OL7 OTL
Atlanta • Boise • Newark • Quebec, Canada
Manchester, UK • Rio de Janeiro, BR • Puebla, MX
UNITED KINGDOM
PH. 0161-339-2223
FAX. 0161-339-3226
E-MAIL: [email protected]
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