Racine Railroad Products 910500 User manual
910500 –4-Cycle Gas Power
Impact Wrench
Impact
10.2023 Rev 1.1
Page iii
Table of Contents
Section 1: Overview and Safety....................................................................................................................5
Gas Powered 1-inch Impact Wrench Overview............................................................................................5
Warranty Terms and Conditions ...................................................................................................................6
Safety Information.........................................................................................................................................7
Safety Terms .............................................................................................................................................7
Machine Use and Safety Precautions .......................................................................................................7
Section 2: Specifications and Installation....................................................................................................10
Specifications..............................................................................................................................................10
Installation...................................................................................................................................................11
Section 3: Tool Operation ...........................................................................................................................12
Engine.........................................................................................................................................................12
Engine Start Up .......................................................................................................................................12
Check the Engine.................................................................................................................................13
Starting the Engine ..............................................................................................................................14
Stopping the Engine................................................................................................................................14
Operation.................................................................................................................................................15
Section 3: Troubleshooting & Maintenance................................................................................................16
Maintenance................................................................................................................................................18
Maintenance Safety.............................................................................................................................19
Fuel Level Check.................................................................................................................................19
Oil Level Check....................................................................................................................................19
Oil Change...........................................................................................................................................20
Air Cleaner...........................................................................................................................................20
Spark Plug ...........................................................................................................................................21
Cooling Fins.........................................................................................................................................21
Fuel Filter Inspection and Fuel Tank Cleaning....................................................................................22
Spark Arrester......................................................................................................................................22
Product Inspection Range ...................................................................................................................23
Storage ................................................................................................................................................23
Section 4: Parts and Service Support.........................................................................................................24
Service Parts ...........................................................................................................................................25
Motor Exploded View...............................................................................................................................26
Wrench Exploded View ...........................................................................................................................27
910500 –4-Cycle Gas Power
Impact Wrench
Impact
5.2022 Rev 1
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Section 1: Overview and Safety
Gas Powered 1-inch Impact Wrench Overview
Racine Railroad Products designs and manufactures equipment primarily for the repair and new
construction of rail and railroad tie track maintenance.
Our product line focuses on rail fastening application/removal/adjustment equipment, other tie material
(OTM) reclamation, wood and concrete railway tie repair, and tie plate handling/distribution.
Ergonomic
The 1-inch (25 mm) Gas Impact Wrench is well balanced for either horizontal or vertical use. The roll
bar doubles as handholds with vibration dampening rubber grips. The large front handle easily
accommodates gloved hands.
Unique Design
The Impact Wrench engine incorporates a unique design for maximum performance.
Versatile
Can be used to drill lag screw holes for tie plate applications.
Durable
Roll Bar protects engine components and fuel tank. The throttle trigger and shut off switch are fully
enclosed inside roll bar for further protection.
Lightweight and Powerful
Weighing 40 lbs (18 kg), the high-power four-stroke engine is suitable for remote areas.
Note: Information in this document is subject to change without notice.
910500 –4-Cycle Gas Power
Impact Wrench
Impact
5.2022 Rev 1
Page 6of 27
Warranty Terms and Conditions
Warranty Period
Each new machine and new parts of our manufacture are warranted against defects in material and
workmanship for one year from the date of shipment from our factory.
When contacting customer service for factory parts, service or warranty support please provide the:
•Racine Railroad Products Model
•Serial Number
•Any locally assigned identification
Vendor Parts Warranty Period
Other equipment and parts used, but not manufactured by Racine Railroad Products, Inc., are covered
directly by the manufacturer's warranty for their products.
Warranty Parts and Service
We will repair or replace, without charge, F.O.B. factory, Racine, Wisconsin, USA, any part Racine
Railroad Products manufactures which is proven to be defective during the warranty period.
Material claimed defective must be returned, if requested, to the factory within 30 days from the date of
the claim for replacement. Ordinary wear and tear, abuse, misuse, and neglect are not covered by this
warranty. Depending upon the circumstances, we may provide technical assistance and/or technical
service support, without charge, to assist in the correction of warranty related problems.
Non-Warranty Parts and Service
Material damaged through normal wear and tear, abuse, misuse and/or neglect are not covered by our
warranty and should be ordered directly from Customer Service.
Note: Parts for models that are no longer in production may not be available.
Non-Warranty Parts Orders
When placing a parts order please provide the following information:
•Company Name and Billing Address
•Purchase Order Number and Issuing Authority
•Shipping Address
•Special Handling Instructions
•Contact Phone Number
•Machine Model and Serial Number
•Part Numbers and Quantities Being Ordered
Note: Please use Racine Railroad Products part numbers when ordering parts. Racine Railroad
Products part numbers are shown in the parts lists and drawings of this manual and have only
six (6) numbers.
Any part number with other than six numbers (e.g., contains alpha-numeric characters) is a Vendor Part
Number and not a Racine Railroad Products part number
910500 –4-Cycle Gas Power
Impact Wrench
Impact
5.2022 Rev 1
Page 7of 27
Safety Information
For safe installation and operation of this equipment, carefully read and understand the contents of this
manual. Improper operation, handling, or maintenance can result in equipment damage and personal
injury.
Only trained and authorized personnel should be allowed to operate this machine. In addition, all
personnel at the worksite (gang) should be aware of the safety concerns and their individual
responsibilities prior to working with this machine.
Please read and comply with all the safety precautions in this manual before operating this machine.
Your safety is at risk.
Safety Terms
DANGER indicates a hazardous operating procedure, practice, or
condition. If the hazardous situation is not avoided death or
serious injury will occur.
WARNING indicates a hazardous operating procedure, practice, or
condition. If the hazardous situation is not avoided death or
serious injury could occur.
CAUTION indicates a potentially hazardous operating procedure,
practice, or condition. If the hazardous situation is not moderate or
minor injury could occur.
Note: Indicates an essential operating procedure, practice, or
condition. No personal injury is possible.
Machine Use and Safety Precautions
Failure to follow safety precautions when operating this equipment can
result in serious injury or death to the operator or other persons in the
area.
Observe the following precautions whenever you are operating,
working on or near this equipment.
Operator Safety
Do not use this machine for other than its intended purpose.
Always wear appropriate personal protective clothing when operating this equipment: e.g., Orange safety
vest, hard hat, safety glasses with side shields, hearing protection, steel-toed safety boots, leather gloves,
dust respirator, etc.
Always lift heavy objects with the knees and legs, not the arms and back.
Always keep hands, arms, feet, head, clothing, etc., out of the operating area and away from all rotating
or moving components when operating, working on or near this machine.
Always operate the engine only in a well-ventilated area and make sure that the air filters, air filter
covers, and muffler are in good condition.
Do not wear loose clothing, jewelry, radio belts, etc., when operating, working on or near this equipment.
They can be caught in moving parts and may result in severe injury.
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Impact Wrench
Impact
5.2022 Rev 1
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Inspect safety decals and replace when they become unreadable or are damaged.
Always comply with all instructions provided on any decals or placards installed on the machine and with
any relevant amplifying information provided in this manual or other general operating procedures.
Always keep the machine clean and free of debris. Operate the machine in a safe and responsible
manner. Exercise caution when fueling, working on or near rotating or moving components, hot
components, and fuel systems. Be aware of potential fire hazards and prevent sparks, exhaust, etc., from
starting fires on the machine and/or work area.
Always shut off the engine. Make sure that all controls are in a safe position and install all appropriate
locking and safety devices before doing any of the following:
•Lubricating
•Adjusting
•Installing Tooling
•Making Repairs
•Performing Service
Do not grab or hold the unit with the rotating anvil.
Hold the handles firmly with both hands and make sure to stand on a firm base or ground.
Do not touch the spark plug or the high voltage cord during operation as it may cause electric shock.
To avoid burn do not touch places like the engine, muffler, or exhaust when it will get very hot during use
and eve after the engine stops. It takes time to cool down.
If the fuel is leaking during operation, stop the engine immediately, and repair. It may cause a fire.
When operating for a long period of time, take a break from time to time to avoid possible white finger
disease which is caused by vibration.
Antivibration systems do not guarantee that you will not sustain white
finger disease or carpal tunnel syndrome.
Therefore, continual, and regular users should monitor closely the condition of
their hands and fingers. If any of the above symptoms appear, seek medical
advice immediately.
Tool Safety
Always comply with all Lock Out / Tag Out Procedures and other safety procedures established for the
local work environment.
Do not make any modifications without authorization or written approval from Racine Railroad Products.
Replace all Racine Railroad Products and OEM parts with genuine Racine Railroad Products and OEM
parts. Using non-OEM parts may compromise the safety of the machine.
Always make sure that all guards, covers, belts, and operating components are in good working order
and that all controls are in the appropriate position before starting the engine.
Always inspect the entire tool before each use. Replace damage parts. Check for fuel leaks and make
sure all fasteners are in place and securely fastened.
Replace parts that are cracked, chipped, or damaged in any way before using the tool.
Use only accessories recommended by Racine Railroad Products for this tool.
Use only genuine replacement parts as recommended by the manufacturer.
910500 –4-Cycle Gas Power
Impact Wrench
Impact
5.2022 Rev 1
Page 9of 27
Fuel Safety
Petrol is highly flammable and must be handled and stored carefully. Use a container approved for fuel
for storing petrol and/or fuel/oil mixture.
Use an approved container for fuel.
Do not smoke or allow smoking near fuel or the tool or while using the tool.
When filling up with fuel, stop the engine and make sure the engine is cool and choose places where
there are no flammables and there is well ventilation.
Never open the fuel tank cap immediately after stopping the engine.
When removing the fuel tank cap, gasoline may blow out, so loosen it carefully.
Do not overfill the fuel tank. Stop filling 10mm from the top of the tank.
Tighten the fuel cap securely after refueling.
Mix and pour fuel outdoors where there is no sparks or flames.
Wipe up all fuel spills before starting the engine.
Move at least 3-feet / 3-meters away from the fueling site before starting the engine.
Drain the tank and run the engine dry before storing the machine. It is recommended that the fuel be
emptied after each use. If fuel is left in the tank, store the tool so fuel will not leak.
Store tool fuel in area where fuel vapors cannot reach sparks or open flames from water heaters, electric
motors or switches, furnaces, etc.
Transport and Storage
Carry the tool by hand with the engine stopped and the muffler away from your body.
Allow the engine to cool, empty the fuel tank, and secure the tool before storing or transporting in a
vehicle.
Store the tool out of the reach of children.
Clean the unit carefully and store It in a dry place.
Make sure the engine switch is off when transporting or storing.
910500 –4-Cycle Gas Power
Impact Wrench
Impact
5.2022 Rev 1
Page 10 of 27
Section 2: Specifications and Installation
Specifications
Impact Wrench
Square drive section...............................................................1-inch [25.4 mm]
Max torque.........................................................................5000 r/min / 2.2 Nm
Weight (no fuel) ...........................................................................40 lbs [18 kg]
Dimensions.....................................................L 25.5 in x H 14.5 in x W 10.6 in
.................................................................L 650 mm x H 370 mm x W 270 mm
Engine
Engine model................................................................................Honda GX50
Type........................................................................ 4-stroke, forced air cooling
Recommended fuel ...........................................................Octane 90 or higher
Fuel tank capacity..............................................................0.166 gal (0.63 liter)
Engine oil capacity....................................................................4 oz. (0.13 liter)
Recommended oil.........................................................................SAE 10W-30
Recommended spark plug................................. CM5H (NGK), CMR5H (NGK)
Accessories
466015............................................................................................1" SOCKET
464477..................................................................................1-13/16" SOCKET
464775....................................................................................1-5/16" SOCKET
464476......................................................................................1-5/8" SOCKET
464478....................................................................................2-3/16" SOCKET
465844.................................................. DOME HEAD LAG SCREW SOCKET
467559...............................................................1- 3/8" SOCKET DEEP WELL
466015......................................................................1" SOCKET DEEP WELL
465786................................................................1-1/4" SOCKET DEEP WELL
464517............................................................1-13/16" SOCKET DEEP WELL
464516................................................................1-5/8" SOCKET DEEP WELL
465719......................................................................2" SOCKET DEEP WELL
464518..............................................................2-3/16" SOCKET DEEP WELL
464774.................................................................7/16" SOCKET DEEP WELL
910500 –4-Cycle Gas Power
Impact Wrench
Impact
5.2022 Rev 1
Page 11 of 27
Installation
Unpacking Instructions
Upon receiving your impact wrench, promptly remove it from the shipping container. Always keep the
top side of container up. Inspect unit for damage which may have incurred during shipping and report
it to carrier for claim.
Be sure to read this instruction manual and do not operate the product or change the accessory until
you fully understand it.
Please keep the instruction manual in a safe location so as not to lose it. If lost, please order a new
one.
This product is a tool designed and developed for the purpose of tightening and loosening bolts and
nuts using the engine as a power source.
Tool Preparations
The impact wrench requires some assembly before use.
After unpacking, install the supplied accessories.
Never stick foreign objects, fingers, or other extremities into the
moving mechanism. Failure to follow these instructions may lead
to severe personal injury or tool damage.
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Impact Wrench
Impact
5.2022 Rev 1
Page 12 of 27
Section 3: Tool Operation
Engine
Engine Components
Engine Controls
Engine Start Up
Always check the following before starting the engine:
1. Before each use, look around the engine for signs of oil or fuel leaks.
2. Remove any excess dirt or debris, especially around the muffler and recoil starter.
3. Look for signs of damage.
4. Check that all shields and covers are in place and all nuts, bolts, and screws are tightened.
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Impact
5.2022 Rev 1
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Check the Engine
Check the fuel level.
•Starting with a full tank will help to eliminate or reduce
operating interruptions for refueling.
Gasoline is highly flammable and
explosive. You can be burned or seriously injured when
handling fuel.
Stop the engine and let it cool before handling fuel.
Keep heat, sparks, and flames away.
Handle fuel only outdoors.
Keep away from your vehicle.
Wipe up spills immediately.
Check the engine oil level.
•Running the engine with a low oil level can
cause engine damage.
Clean the air filter element.
•A dirty air filter element will restrict air flow
to the carburetor, reducing engine
performance.
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Impact Wrench
Impact
5.2022 Rev 1
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Starting the Engine
1. To start a cold engine, move the choke level [1] to the CLOSED [A] position.
•To restart a warm engine, leave the choke lever in the OPEN [B] position.
2. Press the priming pump [2] several times until the priming pump is filled with fuel.
•Even if the priming pump is pressed too many times, the extra fuel will return to the fuel tank.
•If the priming pump is not pressed enough, the engine may not start.
3. Turn the engine switch [3] to the ON [A] position.
4. Pull the starter grip [4] lightly until you feel resistance. Then pull briskly in the direction of the arrow
[5]. Return the starter grip.
Note: Do not allow the starter grip to snap back against the engine. Return it gently to prevent
damage to the starter.
5. Move the choke level [1] to the OPEN [B] position.
6. Let the engine idle for 3- 5 minutes.
7. Adjust the throttle to required rotation speed and torque.
Note: For the first 20 hours, operate the engine at medium speed.
Stopping the Engine
1. Release the throttle lever to decrease engine speed.
2. Move the throttle lever to the MIN [A] position.
3. Turn the engine switch to the OFF [O] position.
4. Place the tool on a firm stand or solid floor and turn the lever to the N (neutral) position.
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Impact Wrench
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Operation
When increasing the engine speed, operate the throttle slowly. If operating too fast may cause
unexpected accidents.
Operate engine with both hand on the machine.
Once starting the engine, do not leave the tool alone. Always hold handle
tightly so that tool will not move around on the stand or floor
Before and during operation, always take a firm stance and keep safety
position from slipping or falling.
•Do not touch the spark plug cable and the spark plug cap during engine operation. There is risk of
electric shock.
•Do not touch rotating parts. It is very dangerous and may cause injury.
•Do not run idle with the accessory tool attached.
•Check the direction of rotation before starting the product.
•Be sure to stop the engine when stopped or when changing the tools and parts.
•Do not touch the tools and screws during operation because they are hot due to friction.
•Engine and other parts become hot. Do not touch anything other than the handle or the operation
unit.
•If an abnormal occurs, stop the engine immediately and stop the work.
Torque Adjustment
The impact wrench has full throttle mode and
half throttle mode by pushing the adjustment
button.
Make fine adjustments using the adjustment
switch during half throttle.
[ 1 ] is maximum
[ 3 ] is minimum.
Socket Installation
There is a pin hole at the end of the anvil (drive).
This have to be aligned with the pin hole of the socket and secured with the pin and O-ring.
Personal Injury. If the socket is not securely installed, the socket may come
off and pop out, causing injury. Never run idle with a socket.
910500 –4-Cycle Gas Power
Impact Wrench
Impact
5.2022 Rev 1
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Section 3: Troubleshooting & Maintenance
Problem
Possible Cause
Remedy
Engine does not start.
Fuel System
Wet spark plugs due to too much
intake of fuel.
1. Remove spark plug.
2. Exhaust exceeded fuel by pulling
recoil starter handle 5-6 times.
3. Install spark plug.
4. Turn choke lever to open position
and pull recoil starter handle.
Bent or disconnection of fuel pipe.
Repair.
Insufficient pressing of priming pump
Press priming pump for several and
send the fuel.
Electrical System
Ignition stop switch in stop position.
Turn to the ON position.
No spark.
1. Bad connection/Ignition coil.
2. Incorrect air gap/Ignition coil.
3. Bad ignition coil.
Short circuit of stop switch lead wire.
Repair or replace.
Dirty plug.
Clean up or replace.
Wider spark plug gap.
Adjust correct gap to 0.6 mm.
Poor connection of high voltage cord
in ignition with spark plug.
Correct connection.
Bad ignition coil.
Replace.
Engine stalls soon after
starting or stops.
Fuel System
Choke lever in closed position
Turn to open position.
Air goes through to fuel system
Check if cracks are found on pipe or
connector and pipe is securely fixed
Poor function of carburetor.
Air leak from carburetor.
Incorrect carburetor adjustment.
Bad diaphragm in carburetor.
Incorrect carburetor valve hinge height
adjustment.
Electrical System
Bad spark plug.
Replace.
Bad ignition coil.
Replace.
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Impact Wrench
Impact
5.2022 Rev 1
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Problem
Possible Cause
Remedy
Engine Overheats.
Wrong selection of spark plug
Replace.
Use recommended parts only.
Clogged cylinder with dirt.
Clean up.
Clogged cooling duct with dirt.
Clean up.
Anvil does not rotate.
Worn out of drum shoe on clutch arm,
Replace.
Output power reduced.
Dirty air cleaner element.
Clean up.
Carbon deposits in muffler, exhaust
port on cylinder.
Clean up.
Poor cylinder pressure due to worn
out of piston, piston ring, cylinder.
Replace.
Worn out anvil.
Replace.
Carbon stuck on spark arrester.
Remove carbon on spark arrester.
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Impact Wrench
Impact
5.2022 Rev 1
Page 18 of 27
Maintenance
It is highly recommended to practice regular check-ups and maintenance in accordance with the
usage
frequency to keep your tool in better condition and reduces total
run
ning
costs.
Maintenance should be performed only by those who have read and understood the instruction manual
for this product. For repairs, contact your dealer.
Engine Maintenance
1. Reduce the service
period when used in
bad conditions such as
dusty areas.
2. Items should be
serviced by RRP unless
you have proper tools
and proficient
mechanic.
3. Log operation hours to
determine proper
maintenance intervals.
4. Check for cracks and
abnormal wear-out on
the belt. Replace if
abnormal.
5. Replace paper air filter
element.
6. Clean or replace when
looks dirty.
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Impact Wrench
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5.2022 Rev 1
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Maintenance Safety
Make sure the engine is off before beginning any maintenance or repairs. To prevent any unwanted
startups, disconnect the spark plug cap. This will eliminate several potential hazards.
Read instructions before starting and make sure you have the tools and skills required.
To reduce the possibility of fire or explosion, be careful when working around gasoline. Use only non-
flammable solvents, not gasoline, to clean parts.
Keep cigarettes, sparks, and flames away from all fuel related parts.
Fuel Level Check
Check the fuel level visually from the outside of the fuel tank while keeping the fuel filler neck upright.
If the fuel level is low, refuel in a well-ventilates area with the engine stopped. If the engine has been
running, allow it to cool.
1. Remove the fuel filter cap and fill the tank with gasoline to the bottom of
the filler neck.
2. Refuel carefully to avoid spilling fuel. Do not overfill.
3. There should be no fuel in the filler neck. After refueling, tighten the fuel
filler cap securely.
Note: Spilled fuel is not only a fire hazard, but it also causes
environmental damage. Wipe up spills immediately.
Oil Level Check
Check the engine oil level before each use or every 10 hours if operated continuously.
1. Remove the oil filler cap/dipstick and wipe it clean.
2. Insert and remove the oil filler cap/dipstick without
screwing it into the oil filler neck then remove it to
check the oil level shown on the dipstick.
3. If the oil level is near or below the lower limit mark
on the dipstick, fill to the bottom edge of the oil fill
hole with the recommended oil.
To avoid overfilling or underfilling, be sure the
engine is in a level position while adding oil.
4. Reinstall the oil filler cap/dipstick and tighten
securely.
910500 –4-Cycle Gas Power
Impact Wrench
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Oil Change
1. Drain the used oil with the engine is warm. Warm oil drains quickly and completely.
2. Check that the fuel filler cap is tightened securely.
3. Place a suitable container below the engine to catch the used oil.
4. Remove the oil filler cap/dipstick and drain the oil into the container by tipping the engine toward the
oil filler neck.
Note: Dispose of used motor oil in a manner that is compatible with the environment. It is
recommended to take used oil in a sealed container to your local recycling center or service
station for reclamation. Do not throw used oil in the trash, pour it on the ground or pour it
down the drain.
5. With the engine in a level position, fill the bottom edge of the oil fill hoke with the recommended oil.
6. Reinstall the oil filler cap/dipstick securely. If any oil is spilled, wipe it up immediately.
Note: Running the engine with a low or excessive oil level can cause engine damage.
Air Cleaner
A dirty air cleaner will restrict air flow to the carburetor, reducing engine performance. If the engine is
operated in dusty areas, clean the air filter element more often than specified in the Maintenance
Schedule.
Inspection (Foam Air Filter Element)
1. Press the latch tab [1] on the top of the air
cleaner cover and remove the cover [2].
2. Inspect the air filter element [3].
3. Clean or replace the dirty air filter element.
Always replace a damaged air filter element.
Cleaning (Foam Air Filter Element)
1. Clean the filter element in warm soapy water, rinse, and allow to dry thoroughly. Or clean in a non-
flammable solvent and allow to dry.
2. Dip the element in clean engine oil, then squeeze out all the excess oil. The engine will smoke when
started if too much oil is left in the element.
3. Wipe dirt from the air cleaner body and cover, using a moist rag. Be careful to prevent dirt from
entering the carburetor.
4. Reinstall the filter element and air cleaner cover securely.
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