Rock River 3400 PSI User manual

Owner’s Manual
3400 PSI
Pressure Washer
Warning To Reduce The Risk Of Injury, User Must
Read And Understand Instruction Manual.
0229516

1. General Assembly
Item Description
1. Handle
2. Engine
3. Wheel
4. Interchangeable spray nozzles
5. High pressure hose
6. Hose reel
7. Spray gun
8. Pump
9. Battery
2.Specifications
3. Safety instructions::
This pressure washer is intended to clean cars, decks, roofs, and etc.
Never attempt to use power washers on or near any electrical outlets, fuse boxes, transformers, high voltage wires,
etc. Severe electrcial shock or death may occur. Never point nozzle at people or animals.
Avoid crushing, disassembling, disposing in fire, or trash. When battery is ready to be disposed
please see your local cities requirements for battery disposal.
KNOW YOUR PRESSURE WASHER
1. READ YOUR OWNERS MANUAL CAREFULLY. Do not operate your power washer until you completely
understand and can follow all operaitng instructions, precautions and safety rules.
2. Restrict the use of your power washer to users who have read, undersatand and can follow all operating
instructions, precautions and safety rules.
3. Never allow children to use the washer.
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Owner’s Manual
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5
2
6
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Maximum Pressure: 3400PSI
Displacement: 291cc
GPM (gallons per minute) 3.5

PLAN AHEAD
1. Always wear ear and eye protection and/or face shield to prevent debris from flying into eyes and face which
could result in serious injury.
2. Dress with appropriate clothes safety boots, safety gloves, safety helmets with visors, and etc. Other protective
equipment is advisable when using chemicals, cleaning detergents or other corrosive or abrasive substances.
3. Do not operate pressure washing equipment if you have consumed alcohol or taken medication.
4. Keep pets, children and bystanders at a safe distance away from your work area. A minimum of 50 feet.
5. Do not spray directly glass or fragile objects.
6. CAUTION after turning off your pressure washer and water supply, there is still high pressure water trapped in
the system. You must release the pressure by triggering the gun after the engine has completely stopped.
PRECAUTIONS FOR GASOLINE ENGINE
1. Follow all safety precautions, operating procedures and maintenance listed in your engine operator’s manual
which came with the pressure cleaner.
2. DO NOT fill the engine with gasoline when the engine is running, hot or near an open flame. DO NOT SMOKE.
3. Do Not run power washers in an enclosed area. Exhaust fumes contain poisonous carbon monoxide gas.
Breathing exhaust gases can cause serious illness or death.
4. Do Not touch or come in contact with hot mufflers, cylinders, cooling fins or hot exhaust gases as this may
result in severe burns.
5. Never tamper with governor spring, governor links or other components which may increase the speed (RPM)
of the engine.
6. Do Not operate in the presence of flammable vapors or gases. When servicing equipment, be sure to properly
dispose of any flammable materials.
7. Do Not make adjustments to your equipment without first removing the spark plug.
8. When transporting, the fuel shut-off valves must be in the closed position, to prevent fuel from spilling out.
MISCELLANEOUS SAFETY PRECAUTIONS
1. Check all high pressure hoses and fittings periodically for cuts or wear. Immediately replace all worn or damaged
components to prevent injury. Do not place high pressure hose on the engine muffler.
2. Inspect pressure cleaner for oil, fuel and/or water leaks.
3. Operate unit on level surface only.
4. Never start power washers without adequate water supply.
5. HIGH PRESSURE SPRAY CAN CAUSE SERIOUS INJURY Never point or aim the gun/wand at yourself or anyone
else. Never put your hand, fingers or body directly in front of the spray nozzle.
6. Do Not run the unit for longer that 2 minutes with spray gun in the closed position.
7. Clean up spilled soap, fuel or oil immediately to avoid falls.
8. Keep clutter out of work area to avoid falls.
9. Never squeeze the spray gun trigger unless you have secure footing. The force of water through the nozzle is
powerful enough to cause you to lose your balance and fall.
10. Never attempt to use power washers on or near any electrical outlets, fuse boxes, transformers, high voltage
wires, etc. Severe electrical shock or death may occur.
11. Do not use the power washer if there are any damages to the unit present, e.g. safety devices, high pressure
hoses, trigger gun.
12. WARNING! Suds or soap are the only cleaning source designed for this appliance. The use of other
cleaning agents or chemicals may affect the safety of appliance.
13. Only use genuine pressure cleaning equipment parts (eg.: High pressure hoses, fittings and couplings etc. ) for
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Pressure Washer

any repairs of your pressure cleaner. Failure to do so may result in injury or cause hazardous operating conditions
to exist.
WATER SUPPLY (Cold Water Only)
Water hose must be at least 3/4 inch in diameter.
Flow rate of water supply must be more than 1MPa.
The water supply temperature must not exceed 147.6F(50°C).
Never use water containing solvents, e.g. paint thinners, gasoline, oil, etc.
Always prevent debris from being drawn into the unit by using a clean water source.
We strongly recommend that this pressure washer should not be left running without the trigger gun being
engaged for more than 2 minutes or longer.
CAUTION
Follow the maintenance instructions specified in the manual.
4. Explanation of safety labels
Reading
instruction
manual
carefully before
using the
machine
Wear eye and ear protection Never point nozzle on or near any
electrical connections, electrical
outlets or fixtures, etc. Severe
electrical shock or death may
occur! Never point nozzle at people
or animals
Guaranteed sound
power level: 112dB(A)
5. Operation
Caution! The powerful spray from your pressure washer is capable of causing damage to surfaces such as: wood,
glass, automobile paint, auto striping and trim, and delicate objects such as flowers and shrubs. Before spraying,
check the item to be cleaned to assure yourself that it is strong enough to resist damage from the powerful spray.
Operating unit with water supply shut-off without flow of water will result in equipment damage. Operating the
pressure washer with water supply shut-off will void your warranty. You should never run this pressure washer for
more than 2 minutes without pulling the trigger to allow cool water to enter the pump.
WARNING! Read owner’s Manual. Do not operate equipment until you have read Owner’s Manual for Safety,
Operation, and Maintenance Instruction.
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Owner’s Manual

5.1 Assembly
Step 1. Attach the handles to the frame of the pressure washer. Insert bolts and tighten with knobs.
Step 2. For machines with hose reels: Attach the hose reel to the handle of the machine. Align holes insert
bolts, and tighten.
Step 3. Attach the wand to the spray gun. Tighten securely.
Step 4. Attach the high pressure hose to the spray gun. Tighten securely. For machines with hose reels: attach
the long hose of the hose reel to the gun.
Step1 Step 2 Step 3 Step 4
5.2 Operating Procedures (Start-Up)
ATTENTION: Become familiar with the operating procedures before starting your unit.
1) Add fresh high quality unleaded gasoline.
2) Check oil level. See Engine Operator’s Manual for correct amount and type.
3) Connect high pressure hose to pump outlet. (see picture 1)
4) Connect water source to pump inlet. There is plastic tap connector equipped with pump, connect your
own connector to it, and screw tightly. (see picture 2)
picture 1 picture 2
NOTE 1: Never pull the hose to move the unit. This could damage hose and/or pump inlet.
NOTE 2: Water source must provide a minimum of 0.2Mpa.Inlet hose can connected to the water main with Max.
inlet pressure 1MPa.
NOTE 3: Use cold water only and water’s temperature should not exceed 147.6 F (50°C).
5) Insert the chemical hose into the chemical liquid container. See figure 3
Figure 3
Chemical hose
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Pressure Washer

If your machine has interchangeable nozzles, make sure when using the black nozzle, soap
nozzle is installed. Soap injectors will not work when high pressure nozzles are installed.
If your machine has an adjustable nozzle (see next point), be sure it is in the low pressure position to
draw soap.
WARNING! Suds or soap powder are the only cleaning sources designed for this appliance. The use of
other cleaning agents or chemicals may adversely affect the safety of appliance.
6) The machine will be supplied with interchangeable spray nozzles or an adjustable nozzle
for interchangeable spray nozzles :
The black nozzle lowers your pressure and draws chemical (no mark on it). The other nozzles are for
high pressure rinses at different spray angles. Red is 0 degrees, yellow is 15 degrees, green is 25
degrees and white is 40 degrees. Be sure the nozzle is fully engaged before pressing the trigger gun.
Failure to do may result in the nozzle becoming a projectile and causing damage to property or persons.
Red yellow green white black
0° 15° 25° 40° detergent
-Install the nozzle :
step 1. Pull back the connector of spray gun (in front of spray gun), then inserter the nozzle into connector
step 2. Release the connector, the connector will attach to the nozzle.
step 1 step 2
-How to select the high pressure nozzle:
A. 0 DEGREE- BLASTING
• Removing caked on mud from heavy construction, farm or lawn equipment.
• Cleaning tar, glue or stubborn stains from concrete.
• Cleaning overhead areas.
• Removing rust from steel and oxidation from aluminum.
B. 15 DEGREE- STRIPPING
• Removing paint from wood, masonry or metal.
• Removing grease or dirt from equipment.
• Removing heavy mildew stains.
connector
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Owner’s Manual

• Removing marine growth from boats and marine equipment.
• Removing rust from steel and oxidation from aluminum.
C. 40 DEGREE- WASHING
• Light cleaning and washing.
• Washing and rinsing of automobiles and boats.
• leaning roofs, windows, patios and driveways.
-The operating pressure and flow for each nozzle
0 degree 15 degree 25 degree 40 degree detergentNozzle
Operating
Pressure 25MPa 25MPa 25MPa 25MPa 0.7±0.2M
Pa
Operating Flow 11.5 l/min 11.5 l/min 11.5 l/min 11.5 l/min 13l/min
7) Turn water source on
5.3 Operation:
NOTE: Do not let hoses come in contact with the HOT engine muffler during or immediately after use, as this will
destroy the hose.
1) Lift the trigger safety lock, and then you can press the trigger.
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Pressure Washer

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2) Start engine according to the engine owner’s manual.
3) Press the trigger of high pressure gun to make sure water is flowing.
In case of any emergency turn engine off.
5.4 Shut Down Procedure
1. Releasing the trigger will stop the water from flowing out. Engage the trigger safety lock to
avoid any accidental spray. Be careful when releasing the trigger gun, it can have a recoil force of about
28MPa.
In case of any emergency turn engine off. off immediately .
2. Turning engine off. See Engine Owner’s Manual. NOTE: NEVER turn the water off with the engine running.
3. Turn water source off.
4. Press trigger to release residual water.
5. Disconnect all hoses used
6. See storage section in this manual for proper storage procedures. Note: Let the engine cool for up to 30
minutes after using.
5.5 Thermal Relief Valve:
If the machine is left running without the trigger gun being engaged for more than two minutes, the water
temperature will rise to a dangerous level and damage the internal components of the pump. In an effort to
prevent damage, pumps are equipped with a thermal relief valve. This valve will open when the temperature
rises too high. This valve will then release a gush of water in an effort to lower the temperature inside the
pump. Immediately after releasing the water, the valve will close.
5.6 THE UNLOADER VALVE
The machine is installed with one unloader, it can redirect the flow back to the inlet side of the pump when
the spray gun is closed. Without an unloader valve, dangerously high pressure will be produced when the
spray gun is closed because the water being forced out of the pump has no place to go. The unloader is used
Thermal relief valve
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Owner’s Manual

as a safety device to guard against failure of pump parts, and the development of dangerously high
pressures.
6. Maintenance and Cleaning:
When doing maintenance, you may be exposed to hot surfaces, water pressure, moving parts, or fire resulting
in death. Before performing any maintenance or repair, disconnect power source, let engine cool down
completely and release all water pressure. The engine contains flammable fuel. Do not smoke or work near open
flames while performing maintenance.
Nozzle cleaning:
If the nozzle becomes clogged with foreign materials, such as dirt, excessive pressure may develop. If the
nozzle becomes partially clogged or restricted, the pump pressure will pulsate. Clean the nozzle immediately
using the nozzle kit and the following instructions.
Wand/Lance:
1. Shut off the pressure washer and turn off the water supply.
2. Disconnect the wand/lance from the gun.
3. Clean the nozzle using the nozzle cleaner provided or a straightened paper clip. Inset into the nozzle end
and work back and forth until obstruction is removed.
4. Direct water supply into nozzle end to back flush loosened particles for 30 seconds.
5. Reconnect wand/lance to gun and turn on water supply.
6. Start pressure washer.
7. Storage:
Before you store the pressure washer, make sure you clean the machine.
1. Disconnect spark plug wire and remove spark plug. See Engine Operator’s Manual for correct amount
and type.
2. Remove gasoline and oil from engine. See Engine Operator’s Manual for correct amount and type.
8. Troubleshooting guide
PROBLEM CAUSE REMEDY
Engine will not start. 1. No fuel.
2. Pressure buildup after initial
use.
3. Not started or chocked.
4. Spark plug wire not attached.
5. Engine ON/OFF switch in OFF
position.
1. Add fuel.
2. Squeeze gun trigger to relieve
pressure.
3. Pull choke of engine 3 times.
4. Attach spark plug wire.
5. Place engine ON/OFF switch in ON
position.
No or low pressure (initial
use)
1. Wand not in high pressure.
2. Leak at high pressure hose.
3. Nozzle obstructed.
4. Water filter screen clogged.
1. See high pressure operation.
2. * Repair leak. Apply Teflon tape if
necessary.
3. Clean nozzle with paper clip or
nozzle cleaning tool, pour water
into nozzle end to flush out
obstruction.
4. Remove and clean filter
Water leaking at
gun/wand connection
1. Worn o-ring.
2. Loose hose connection.
1. * Check and replace.
2. Tighten
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Pressure Washer

Water leaking in pump Loose connections. Tighten.
NOTE: Little leaking at pump outlet is
normal.
Oil leaking in pump 1. Oil seals worn.
2. Pump overfilled.
3. Incorrect oil used
1. *replaced
2. Check for correct amount.
3. * Drain and fill with correct amount
and type of oil.
For further service or maintenance please call Toll Free 888-896-6881 (US)
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Owner’s Manual

11
Pressure Washer
.ytQnoitpircseD.oNtraPAPA
154x6MtloBGY-10-1045WG
GW5401-02-YG Gasket φ96
1kooHnuGpoTGY-30-1045WG
461x8MtloBGY-40-1045WG

.ytQnoitpircseD.oNtraPAPA
GW5401-05-YG Gasket φ618
5elzzoNGY-60-1045WG
5temmorGelzzoNGY-70-1045WG
1eldnaHreppUGY-80-1045WG
46MtunkcoLGY-90-1045WG
1knarCGY-01-1045WG
GW5401-11-YG Spring Gasket φ48
403x8MtloBGY-21-1045WG
1esoHD#3GY-31-1045WG
1leeResoHGY-41-1045WG
68MtunkcoLGY-51-1045WG
1esoHA#3GY-61-1045WG
1esoHtnegreteDGY-71-1045WG
254x6MtloBGY-81-1045WG
1Under FrameGY-91-1045WG
2tooFrebbuRGY-02-1045WG
452x8MtloBGY-12-1045WG
404x01MtloBGY-22-1045WG
GW5401-23-YG Spring Gasket φ401
GW5401-24-YG Gasket φ801
2ClipGY-52-1045WG
2SpringGY-62-1045WG
2ShaftGY-72-1045WG
GW5401-28-YG 10” Wheel 2
2Ringφ16GY-92-1045WG
2Insert RetainerGY-03-1045WG
1Under Bottom Gun HookGY-13-1045WG
2Battery Rubber FootGY-23-1045WG
GW5401-33-YG Battery 1
2Bolt M5x12GY-43-1045WG
4Gasket φ5GY-53-1045WG
2Locknut M5GY-63-1045WG
1PlugGY-73-1045WG
2WireGY-83-1045WG
1Battery Box CoverGY-93-1045WG
2Spring Shim φ6GY-04-1045WG
2Bolt M6x12GY-14-1045WG
14# Engine GasketGY-42-1045WG
4Locknut M10GY-43-1045WG
113HP EngineGY-44-1045WG
16# GunGY-54-1045WG
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Owner’s Manual

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Pressure Washer

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Owner’s Manual
bot cover of crank caseGW5401-01-P-YG
GW5401-02-P-YG
GW5401-03-P-YG
GW5401-04-P-YG
GW5401-05-P-YG
GW5401-06-P-YG
GW5401-07-P-YG
GW5401-08-P-YG
GW5401-09-P-YG
GW5401-10-P-YG
GW5401-11-P-YG
GW5401-12-P-YG
GW5401-13-P-YG
GW5401-14-P-YG
GW5401-15-P-YG
GW5401-16-P-YG
GW5401-17-P-YG
GW5401-18-P-YG
GW5401-19-P-YG
GW5401-20-P-YG
GW5401-21-P-YG
GW5401-22-P-YG
GW5401-23-P-YG
GW5401-24-P-YG
GW5401-25-P-YG
GW5401-26-P-YG
GW5401-27-P-YG
GW5401-28-P-YG
GW5401-29-P-YG
GW5401-30-P-YG
GW5401-31-P-YG
GW5401-32-P-YG
GW5401-33-P-YG
GW5401-34-P-YG
GW5401-35-P-YG
GW5401-36-P-YG
GW5401-37-P-YG
GW5401-38-P-YG
GW5401-39-P-YG
GW5401-40-P-YG
GW5401-41-P-YG
GW5401-42-P-YG
GW5401-43-P-YG
GW5401-44-P-YG
GW5401-45-P-YG
GW5401-46-P-YG
GW5401-47-P-YG
GW5401-48-P-YG
GW5401-49-P-YG
GW5401-50-P-YG
6
oil drain plug 1
sheet of oil drain plug 1
crank case cover 1
slip crank case cover 1
oil lever lence 1
gasket,lence 1
lence cap 1
oil inlet plug 1
gasket,oil inlet plug 1
crank case 1
bolt,crank shaft cover 4
crank shaft cover 1
seal,gasket bearing cover 1
bearing clip 1
ball bearing 1
crank shaft 1
needle rotter bearing 1
flange ring 1
gasket,crank shaft 3
flange 1
bolt,flange 4
conne cting rod 3
conne cting rod pin 3
plunger rod 3
copper sheet 3
ceramic plunger 1
plunger,screw cap ring 6
copper sheet 3
pluger,screw cap ring 3
locating ring 3
location ring water seal 3
gasket,locating ring 3
u-packing ring 3
u-packing 3
u-packing seat 3
pressure adjusting handle cover 1
pressure adjusting screw 1
fix nut adjustment screw 1
pressure adjustment handle 1
pressure adjusting seat 1
fix screw,pressure adjustment 1
pressure adjustment 1
upper washer,spring 1
pressure adjusting spring 1
under washer,spring 1
screw,adjustment vavle 1
water return valve jacket 1
inner gasket,valve jackrt 1
adjustment valve seat 1
Description Qty.APA Part No.

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Pressure Washer
inner gasket, valve jacket
water return valve corn
water return valve jacket
outer gasket valve jacket
water return vlave seat
gasket, valve seat
water outlet tee connector
gasket, tee connector
fix bolt outlet tee connector
bolt sheet
gasket, fix bolt
gasket, outlet tee connector
cylinder
screw seal
inlet screw cap
inlet tee connector
gasket
inlet tee connector seal
water inlet tee connector
gasket, inlet tee connector
gasket, inlet screw
inlet screw
gasket, water inlet connector seal
gasket, water outlet joint
spring water outlet cone valve
water outlet cone valve
gasket water outlet cone valve
gasket, check valve 6
6
6
6
6
6
6
washer check valve
check valve flake
spring check valve
check valve box
gasket compaction cap seal
check valve compaction cap
sheet 8
bolt cylinder 8
water inlet connector
quick connector cap
bearing clip
gasket, quick connector seal
quick connector
steel ball
detergent injector
spring, injector
gaksket, detergent injector
steel ball
injector nozzle
water shooting nozzle
water outlet joint
GW5401-51-P-YG
GW5401-52-P-YG
GW5401-53-P-YG
GW5401-54-P-YG
GW5401-55-P-YG
GW5401-56-P-YG
GW5401-57-P-YG
GW5401-58-P-YG
GW5401-59-P-YG
GW5401-60-P-YG
GW5401-61-P-YG
GW5401-62-P-YG
GW5401-63-P-YG
GW5401-64-P-YG
GW5401-65-P-YG
GW5401-66-P-YG
GW5401-67-P-YG
GW5401-68-P-YG
GW5401-69-P-YG
GW5401-70-P-YG
GW5401-71-P-YG
GW5401-72-P-YG
GW5401-73-P-YG
GW5401-74-P-YG
GW5401-75-P-YG
GW5401-76-P-YG
GW5401-77-P-YG
GW5401-78-P-YG
GW5401-79-P-YG
GW5401-80-P-YG
GW5401-81-P-YG
GW5401-82-P-YG
GW5401-83-P-YG
GW5401-84-P-YG
GW5401-85-P-YG
GW5401-86-P-YG
GW5401-87-P-YG
GW5401-88-P-YG
GW5401-89-P-YG
GW5401-90-P-YG
GW5401-91-P-YG
GW5401-92-P-YG
GW5401-93-P-YG
GW5401-94-P-YG
GW5401-95-P-YG
GW5401-96-P-YG
GW5401-97-P-YG
GW5401-98-P-YG
GW5401-99-P-YG
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Description Qty.APA Part No.

16
Pressure Washer
Limited Warranty
ROCK RIVER warrants to the original purchaser who uses the product
in a consumer application (personal, residential or household usage)
that all products covered under this warranty are free from defects in material
and workmanship for two years from the date of purchase. All products covered
by this limited warranty which are used in commercial applications (i.e.
income producing) are warranted to be free of defects in material and
workmanship for 90 days from the date of original purchase. Products
covered under this warranty include air compressors, air tools, service
parts, pressure washers, and generators.
ROCK RIVER will repair or replace, ROCK RIVER’s sole option, products or
components which have failed within the warranty period. Service will be
scheduled according to the normal work flow and business hours at the
service center location, and the availability of replacement parts. All
decisions of ROCK RIVER with regard to this limited warranty shall be final.
This warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.
RESPONSIBILITY OF ORIGINAL PURCHASER (initial User):
• To process a warranty claim on this product, DO NOT return item to the
retailer. The product must be evaluated by an Authorized Warranty
Service Center. For the location of the nearest Authorized Warranty
Service Center call 888-896-6881.
• Retain original cash register sales receipt as proof of purchase for
warranty work.
• Use reasonable care in the operation and maintenance of the product as
described in the Owners Manual(s).
• Deliver or ship the product to the nearest Authorized Warranty Service
Center. Freight costs, if any, must be paid by the purchaser.
• Air compressors with 60 and 80 gallon tanks will be inspected at the site
of installation. Contact the nearest Authorized Warranty Service Center
that provides on-site service calls for service call arrangements.
• If the purchaser does not receive satisfactory results from the
Authorized Warranty Service Center, the purchaser should contact
ROCK RIVER.

17
Pressure Washer
Limited Warranty (cont’d)
THIS WARRANTY DOES NOT COVER:
• Merchandise sold as reconditioned, used as rental equipment, or floor or
display models.
• Merchandise that has become damaged or inoperative because of
ordinary wear, misuse, cold, heat, rain, excessive humidity, freeze
damage, use of improper chemicals, negligence, accident, failure to
operate the product in accordance with the instructions provided in the
Owners Manual(s) supplied with the product, improper maintenance, the
use of accessories or attachments not recommended by ROCK RIVER,
or unauthorized repair or alterations.
• Repair and transportation costs of merchandise determined not to be
defective.
• Costs associated with assembly, required oil, adjustments or other
installation and start-up costs.
• Expendable parts or accessories supplied with the product which are
expected to become inoperative or unusable after a reasonable period
of use.
• Merchandise sold by ROCK RIVER which has been manufactured by and
identified as the product of another company, such as gasoline engines.
The product manufacturer’s warranty, if any, will apply.
• ANY INCIDENTAL, INDIRECT OR CONSEQUENTIAL LOSS,
DAMAGE, OR EXPENSE THAT MAY RESULT FROM ANY DEFECTS,
FAILURE OR MALFUNCTION OF THE PRODUCT IS NOT COVERED
BY THIS WARRANTY. Some states do not allow the exclusion, so it may
not apply to you.
• IMPLIED WARRANTIES, INCLUDING THOSE OF
MERCHANTABILITY OR SUITABILITY FOR A PARTICULAR
PURPOSE, ARE LIMITED TO TWO YEARS FROM THE DATE OF
ORIGINAL PURCHASE. Some states do not allow limitations on how
long an implied warranty lasts, so the above limitations may not apply to
you.