Generac Portable Products 3500PSI 1540-1 User manual

GEN RAC°I
Portable Products
Pressure Washer Owner's Manual I
Generac Portable Products is alicensed trademark of Briggs & Stratton Power Products.
Generac Portable Products es una marca registrada licenciada de Briggs & Stratton Power Products.
Questions? Help is just a moment away!
Preguntas? La ayuda es justa un momento lejos!
Call: Generac Pressure Washer Helpline
Llame: Linea Directa del Lavador a Presi6n de Generac - 1-800-270-1408 M+F 8+5 CT
I+!!!!!U Web: --.generac-por tables.com
Model No. 1540+1 (3500 PSi High Pressure Washer) Manual No. 193016GS Revision I (05/27/2003)
06

Generac Portable Products 3500 PSIPressureWasher
TABLE OF CONTENTS
SafetyRules.................................. 2-4
Know Your PressureWasher ...................... 5
Assembly.................................... 6-7
Operation .................................. 8- I0
Specifications ................................. I I
Maintenance ............................... I I- 14
Storage...................................... 14
Troubleshooting ............................... 15
Notes ....................................... 16
Replacement Parts........................... 17-19
Warranty ............................... Last Page
EQUIPMENT
DESCRIPTION
_Read this manual carefully and become familiar
with your pressure washer. Know its
applications, its limitations and any hazards
involved.
Every effort hasbeen madeto ensure that information in
this manualisaccurate and current. However, we reserve
the right to change,alter or otherwise improve the
product and this document at anytime without prior
notice.
In the State of California a spark arrester isrequired by lawI
(Section 4442 of the California PublicResourcesCode). I
Other states may havesimilar laws.Federal lawsapplyon
federal lands.If you equip the muffler with a spark arrester,
it must be maintained ineffective working order.
SAFETY RULES
_This is the safety alert symbol. It is used to
alert you to potential personal injury
hazards. Obey all safety messages that follow
this symbol to avoid possible injury or death.
The safety alert symbol (_.) isusedwith a signalword
(DANGER, CAUTION, WARNING), a pictorial and/or a
safety messageto alert you to hazards.DANGER
indicatesa hazardwhich, if not avoided, will result in death
or serious injury.WARNING indicatesa hazardwhich, if
not avoided, couldresult in death or serious injury.
CAUTION indicatesa hazard which, if not avoided, might
result in minor or moderate injury.CAUTION, when
usedwithout the alert symbol, indicatesa situation that
could result in equipment damage. Follow safety messages
to avoid or reduce the risk of injuryor death.
WARNING I
The engine exhaust from this product contains I
chemicals known to the State of California to cause
cancer, b rth defects, or other reproduct ve harm.
Hazard Symbols and Meanings
Toxic Fumes ElectricalShock
Slippery Surface Fall Fluid Injection
Fire Explosion Hot Surface
Moving Parts FlyingObjects Kickback
/2

Generac Portable Products 3500 PSIPressureWasher
DANGER
Operate pressure washer ONLY outdoors.
Use a respirator or mask whenever there isa chance that
vapors may be inhaled.
Readall instructions with mask so you are certain the maskwi[[
provide the necessaryprotection againstinhalingharmful vapors.
WARNING
Keepwater sprayawayfrom electric wiring or fatal electric
shock may result.
WARNING
Keepspray nozzle between 8to 24 inchesawayfrom cleaning
surface.
Operate this unit on a stable surface.
The cleaning area should haveadequate slopes anddrainage to
reduce the possibility of afall due to slippery surfaces.
Beextremely careful if you must usethe pressure washer from
a [adder,scaffolding or any other relatively unstable location.
Firmly grasp spraygun with both handswhen usinghigh
pressure sprayto avoid iniuryif gun kicks back.
WARNING
WHEN ADDING FUEL
Turnpressure washer OFF and let it cool at least2 minutes
before removing gascap.
Fill fuel tank outdoors.
DO NOT overfill tank. Allow spacefor fuel expansion.
Keep fuel awayfrom sparks, open flames, pilot lights, heat, and
other ignitionsources.
DO NOT light acigarette or smoke.
eVHEN OPERATING EQUIPMENT
DO NOT tip engine or equipment at angle which causesfuel
to spill.
DO NOT sprayflammable liquids.
'HEN TRANSPORTING OR REPAIRING EQUIPMENT
Transport/repair with fuel tank EMPTY or with fuel shutoff
valve OrE
eVHEN STORING FUEL OR EQUIPMENT WITH FUEL
IN TANK
Store awayfrom furnaces, stoves, water heaters, clothes
dryers or other appliancesthat have pilot light or other
ignition source becausethey can ignite fuel vapors.
WARNING
NEVER aim spray gunat people, animals or plants.
DO NOT allow CHILDREN to operate pressure washer.
NEVER repair high pressure hose. Replaceit.
Keep high pressure hose connected to pump and spray gun
while system is pressurized.
/3

Generac Portable Products 3500 PSIPressureWasher
WARNING
DO NOT touch hot surfaces.
Stay dear of exhaust gases.
Allow equipment to cool before touching.
WARNING
DO NOT wear loose clothing, jewelry or anything that may
be caught in the starter or other rotating parts.
Tie up long hair and remove jewelry.
WARNING
Always wear eye protection when using this equipment or in
vicinity of where equipment is in use.
WARNING
Disconnect spark plug wire from spark plug and place wire
where it cannot contact spark plug.
CAUTION
DO NOT tamper with governed speed.
DO NOT operate pressure washer above rated pressure.
CAUTION
DO NOT secure spraygun in open position.
DO NOT leavespray gun unattended while machine is
running.
NEVER use aspraygun which does not have atrigger lock or
trigger guard in place and in working order.
Always be certain spray gun, nozzles and accessories are
correctly attached.
CAUTION
DO NOT point spraygun at glasswhen in jet spray mode.
NEVER aim spray gun at plants.
CAUTION
tf you havequestions about intended use, ask dealer or
contact your local service center.
NEVER operate units with broken or missing parts, or
without protective housing or covers.
DO NOT by-pass any safetydevice on this machine.
Before starting pressure washer in cold weather, check all
parts of the equipment to be sure ice has not formed there.
NEVER move machine by pulling on high pressure hose. Use
handle provided on unit.
Check fuel system for leaksor signsof deterioration, such as
chafed or spongy hose, loose or missing damps, or damaged
tank or cap.Correct all defects before operating pressure
washe_
This equipment is designed to be used with Briggs& Stratton
Power Products authorized parts ONLY. Ifequipment isused
with parts that DO NOT comply with minimum specifications,
user assumesall risks and liabilities.
/4

Generac Portable Products 3500 PSIPressureWasher
KNOW YOUR PRESSURE WASHER
Read this owner's manual and safety rules before operating your pressure washer.
Compare the illustrationswith your pressure washer to familiarize yourself with the locationsof various controls and
adjustments. Savethis manualfor future reference. Throttle Lever
Nozzle Extension with ITank Choke Lever
Quick Connect FuelValve
Recoil Starter
(on front of engine)
Spray Gun
\Filter
Oil Fill Cap
f
High Pressure Hose
Pressure
/
Quick Connect SprayTips igh Pressure Outlet
with Quick Connect
Pump equipped with
Automatic Cool Down System
Air Filter -- Protects engine by filtering dust and debris out
of intake air.
Automatic Cool Down System -- Cycles water through
pump when water reaches 125°-t55°F. Warm water will
discharge from pump onto ground. This system prevents
internal pump damage.
Chemical Injection SiphonlFilter-- Use to siphon
detergent or other pressure washer chemicals into the low
pressure stream.
Choke Lever -- Prepares a cold engine for starting.
Fuel Valve -- Used to turn fuel on and off to engine.
Fuel Tank -- Fill tank with regular unleaded fuel. Always
leave room for fuel expansion.
High Pressure Hose -- Connect one end to the water
pump and the other end to the spray gun.
High Pressure Outlet with Quick Connect-- To connect
high pressure hose.
Water Inlet
Chemical Injection Siphon/Fitter
Nozzle Extension with Quick Connect -- Allows you to
switch between five different spray tips.
Oil Fill Cap -- Fill engine with oil here.
Pressure Control Knob -- Varies the pressure of the high
pressure spray.
Pump -- Develops high pressure.
Recoil Starter -- Use for starting the engine manually.
Spray Gun -- Controls the application of water onto
cleaning surface with trigger device. Includes safety latch.
Quick Connect Spray Tips -- Chemical injection, 0°, 15°,
25°, and 40°: for various cleaning applications.
Throttle Lever_Sets engine in starting mode for recoil
starter.
Water Inlet -- Connect garden hose here.
/5

Generac Portable Products 3500 PSIPressureWasher
ASSEMBLY
IMPORTANT: Readentire owner's manualbefore you
attempt to assembleor operate your new pressure washer.
Remove Pressure Washer From
Carton
•Removethe high pressure hose, handle,and parts box
includedwith pressure washer.
• Slicetwo corners at the end of carton from top to
bottom so the panel can be folded down fiat, then
remove all packing material.
• Roll pressure washer out of carton.
To prepare your pressure washer for operation, you
will need to perform these tasks:
I. Fill out and sendin registration card.
2. Attach handle to main unit.
3. Add oil to engine.
4. Add fuel to fuet tank.
5. Remove and discard tape from domed oil filler capon
top of pump.
6. Connect high pressure hoseto spraygun and pump.
7. Connect water supply to pump.
8. Connect nozzle extension to spray gun.
Carton Contents 9. Select and installdesired quick connect spray tip.
Items in the carton include:
Main Unit
High Pressure Hose
Handle
Accessory Box (includes the following):
(2) Bottles of engine oil
Owner's registration card
Safetygoggles
Bagcontaining 5 multi-colored quick connect
spray tips
Maintenancekit
Attach Handle to the Pressure
Washer
Use either a 13ramor adjustable wrench to attach the
handle to the pressure washer.
To attach handle to the pressure washer:
I. Slowly tip pressure washer forward and let it gently
rest on front bumper.
2. Align holes on handle with holes on base.
3. Insert carriage bolts provided to hold handle in place
(Figure I).
Owner's manual
Enginemanual
Enginewarranty card
Emissionscontrol warranty card
Spark arrester screen
Spraygun with quick connect fitting
Nozzle extension with quick connect fitting
Handle hardware, including4 carriage bolts and
4 flange nuts
If any of the above parts are missingor damaged,call the
pressure washer helpline at 1-800-270-1408.
PREPARING PRESSURE
WASHER FOR USE
If you haveany problems with the assemblyof your
pressure washer or if parts are missingor damaged,call the
pressure washer helpline at 1-800-270-1408.
4. Secure handleto pressure washer usingfour provided
flangenuts.
5. Slowly tip pressure washer back in place and insert
multi-colored quick connect spray tips in spaces
provided in handle.
/6

GeneracPortableProducts3500PSIPressureWasher
Add Engine Oil and Fuel
• Place pressure washer on a level surface.
CAUTION
• Refer to engine manual for oil and fuel fill information.
• Damage to equipment resulting from failure to follow this
instruction will void warranty.
• Refer to engine owner's manual and follow oil and fuel
recommendations and instructions.
NOTE: Check oil often during engine break-in. Refer to
engine owner's manual for recommendations.
Connect Hose and Water Supply to
Pump
IMPORTANT: To avoid pump damage, you must
assemble the nozzle extension to the spray gun and attach
all hoses before you start the engine.
I. Remove and discard tape from domed oil filler cap on
top of pump.
2. Uncoil high pressure hose and attach quick connect end
of hose to base of spray gun (Figure 2). Pull down on
collar of quick connect, slide onto spray gun and let go
of collar. Tug on hose to be sure of a tight connection.
Connect high
pressure hose
here.
NOTE: Remove and discard all pump shipping caps before
attaching hoses.
3. Similarly, attach other end of high pressure hose to
high pressure outlet on pump. Pull down on collar of
quick connect, slide onto pump and let go of collar.
Pull on hose to be sure of a tight connection.
4. Before connecting garden hose to water inlet, inspect
inlet screen (Figure 3). Clean screen if it contains
debris, replace if damaged. DO NOT RUN PRESSURE
WASHER IF SCREEN IS DAMAGED.
use if damaged;
clean if dirty.
5. Run water through garden hose for 30 seconds to
clean out any debris. Turn off water.
IMPORTANT: DO NOT siphon standing water for the
water supply. Use ONLY cold water (less than 100°F).
6. Connect garden hose (not to exceed 50 feet in length)
to water inlet.Tighten by hand (Figure 3).
CAUTION
• Damage to equipment resulting from failure to follow this
instruction will void warranty.
7. Turn ON water and squeeze trigger on spray gun to
purge pump system of air and impurities.
WARNING
Always wear eye protection when using this equipment or in
vicinity of where equipment is in use.
Before starting the pressure washer, be sure you are wearing
adequate eye protection.
Checklist Before Starting Engine
Review the unit's assembly to confirm you have performed
all of the following:
I. Make sure handle is in place and secure.
2. Check that oil has been added to proper level in
engine crankcase.
3. Add proper fuel to fuel tank.
4. Check for properly attached hose connections.
/7

Generac Portable Products 3500 PSIPressureWasher
5. Check to make sure there are no kinks, cuts, or
damageto high pressure hose.
6. Provide a proper water supply (not to exceed 100°F)
at an adequate flow.
7. Be sure to read "Safety Rules" and "How To Use Your
PressureWasher" before usingthe pressure washer.
HOW TO USE PRESSURE
WASHER
If you haveany problems operating your pressure washer,
pleasecall the pressure washer helpline at
1-800-270-1408.
How to Start Engine
The best way to start your pressure washer for the first
time isto follow these instructions step-by-step. This
starting information also appliesif you havelet the it sit idle
for at least a day.
I. Placepressure washer near an outside water source
capableof supplying water at a flow rate greater than
5.0gallons per minute and no tessthan 20 PSIat
pressure washer end of garden hose.
2. Make sure unit is in a level position.
3. Check that high pressure hose is connected to spray
gun and pump. See"Preparing PressureWasher for
Use" for illustrations.
4.
5.
Connect garden hose to water inlet on pressure
washer pump. Turn ON the water.
Squeezetrigger on gun until you havea steady stream
of water. This purges pump of air and impurities.
CAUTION
6. Attach nozzle extension to spray gun. Tighten by hand
(Figure 4).
7. Apply safety latch to spray gun trigger (Figure 5).
SafetyLatch
8. Select desired quick connect spray tip and insert it into
end of nozzle extension (see "How To Use Spray
Tips").
9. Start engine according to instructions given in engine
owner's manual.
• Squeezetrigger on spraygun eachtime recoil starter is
pulled and engine fails to start.
NOTE: Always keep the Throttle Control leverin the
"Fast" position when operating the pressure w_sher.
How to Stop Pressure Washer
• Turn engine off according to instructionsgiven in engine
owner's manual.
•Squeeze trigger on the spray gun to relieve
pressure in the hose.
NOTE: A small amount of water wittsquirt out when you
releasethe pressure.
/8

GeneracPortableProducts3500PSIPressureWasher
How to Use Spray Tips
The quick-connect on the nozzle extension allows you to
switch between several different spray tips. The spray tips
vary the spray pattern asshown below (Figure 6).
Follow these instructions to change spray tips:
I. Engagesafety latch on spray gun.
CAUTION
NEVERexchangespraytips without lockingthe safetylatch
on the trigger.
2. Pull back collar on quick-connect and pull current
spray tip off. Store spray tips in spaceprovided on
handlesstorage panel.
3. Select desired spray tip:
For gentle rinse, select white 40° or green 25°
spray tip.
To scour surface, select yellow 15° or red 0°spray
tip.
To apply chemical, select black spray tip.
4. Pullbackon collar, insert new spraytip and releasecollar.
Tugon spraytip to makesure it is securelyin place.
5. For most effective cleaning, keep spray tip from 8 to
24 inches awayfrom cleaning surface. If you get spray
tip too close, you may damagecleaningsurface. DO
NOT get closer than 6 inches when cleaningtires.
Cleaning and Applying Chemical
IMPORTANT: Use soaps designed specifically for
pressure washers. Household detergents could damage
the pump.
CAUTION
Startingthe engine without all the hoses connectedand
without the water turned ON will damagethe pump.
Damage to equipment resulting from failure to follow this
instructionwill void warranty.
To apply detergent follow these steps:
I. Review spray tip use.
2. Prepare detergent solution as required by
manufacturer.
3. Placesmall filter end of detergent siphoning tube into
detergent container.
CAUTION
•When insertingthe filter into a detergent solution bottle,
route the tube so asto keep it from inadvertently contacting
the hot muffler.
4. Make sure black spray tip is installed.
NOTE: Detergent cannot be applied with the high
pressure spray tips (White, Green, Yellow, or Red).
Low Pressure \
Use to apply
chemical
Black White Green Yellow Red
40°25°15° 0°
High
Pressure
/9

Generac Portable Products 3500 PSIPressureWasher
5. Make sure garden hose is connected to water inlet
Check that high pressure hose is connected to spray
gun and pump and start engine.
6. Apply detergent to a dry surface, starting at lower
portion of area to be washed and work upward,using
long, even, overlapping strokes.
7. Allow detergent to soak in between 3-5 minutes
before washingand rinsing. Reapplyasneeded to
prevent surface from drying. DO NOT allow detergent
to dry on (prevents streaking).
IMPORTANT: You must flushthe chemical injection
system after eachuseby placingthe filter into a bucket of
clean water, then run the pressure washer in low pressure
for I-2 minutes.
Pressure Washer Rinsing
After you have applied detergent, scour the surface
and rinse it clean as follows:
I.
2.
.
Apply safety latch to spray gun.
Remove black chemical spray tip from nozzle
extension.
Select and install desired high pressure spray tip
following the instructions "How to Use Spray Tips".
WARNING
Keepspray nozzle between 8 to 24 inchesawayfrom cleaning
surface.
Operate this unit on astable surface.
Beextremely careful ifyou must usethe pressure washer from
a ladder, scaffolding or any other relatively unstable location.
Firmly grasp spraygun with both handswhen usinghigh
pressure sprayto avoid iniuryif gun kicks back.
4. Increase(decrease) spray pressure byturning pressure
control knob clockwise (counterclockwise) (Figure 7).
Use lower pressure to wash items such as a car or
boat. Use higher pressure to strip paint and degrease
driveways.
5. Apply a high pressure spray to a small area and check
surface for damage.If no damageisfound, assumeit is
okay to continue rinsing.
6. Start at the top of the areato be rinsed, working
down with same overlapping strokes asyou usedfor
cleaning.
Automatic Cool Down System
(Thermal Relief)
If you run the engine on your pressure washer for
3-5 minutes without pressingthe trigger on the spray gun,
circulating water in the pump can reachtemperatures
above 125°EThe system engagesto cool the pump by
discharging the warm water onto the ground.
/10

Generac Portable Products 3500 PSIPressureWasher
SPECIFICATIONS
Outlet Pressure ..... 3,500 psi
Flow Rate .......... 4.0 gallonsper minute (gpm)
Detergent .......... Use detergent approved for
pressure washers
Water Supply ...... Not to Exceed 100°F
Temperature
Automatic Cool .... Will cyclewhen water
Down System reaches 125°-155°F
Unit Weight ........ 147lbs.
GENERAL MAINTENANCE
RECOMMENDATIONS
The pressure washerwarranty does not cover itemsthat
have been subjected to operator abuse or negligence. To
receive full value from the warranty, the operator must
maintain the pressure washer as instructed in this manual.
•Some adjustments witl need to be made periodically to
properly maintain your high pressure washer.
• All maintenance in this manual,the pump information
sheet, and the engine owner's manualshould be made at
leastonce eachseason.
• Once a year you should clean or replace the spark plug,
clean or replacethe air filter and check the spray gun
and nozzle extension assemblyfor wear. A new spark
plug and clean air filter assure proper fuel-air mixture
and help your engine run better and lastlonger.Please
refer to your engine owner's manualfor more details.
• If equipped with inflatabletires, keep the air pressure at
the value marked on the tire or within 15 and 40 psi.
Before Each Use
Check engineoit level
Check water inletscreen for damage.
Check in-linefilter for damage.
Check high pressure hose for leaks.
Check detergent siphoning tube and filter for damage.
Check spraygun, nozzleextension, and spraytips for leaks.
Rinseout garden hoseto flushout debris.
PRESSURE WASH ER
MAINTENANCE
Check and Clean Inlet Screen
Examine the screen on the water inlet. Clean it ifthe
screen isclogged or replace it ifscreen isdamaged.
Check High Pressure Hose
The high pressure hose can develop leaksfrom wear,
kinking, or abuse.Inspectthe hose each time before using
it. Check for cuts, leaks,abrasions or bulging of cover,
damageor movement of couplings. If anyof these
conditions exist, replacethe hose immediately.
WARNING
NEVER repair high pressure hose. Replace it.
Replacement hose rating MUST exceed maximum pressure
ratingof unit.
Check Detergent Siphoning Tube
Examine the filter on the detergent tube and cleanif
clogged. The tube should fit tightly on the barbed fitting.
Examine the tube for leaksor tears. Replacethe filter or
tube if either isdamaged.
Cleaning Detergent Siphoning Tube
If you usedthe detergent siphoning tube, you must flush it
with clean water before stopping the engine.
I. Placechemical injectionsiphon/filter in a bucket full of
clean water.
2. Attach black low pressure spray tip.
3. Flushfor I-2 minutes.
4. Shut off engine.
IMPORTANT: Simply shutting OFF engine will not
release pressure in the system.When the engine has
shut down, squeeze the trigger on the spray gun to
relieve the pressure in the hose.
/II

Generac Portable Products 3500 PSIPressureWasher
Check Gun and Nozzle Extension
Examinethe hose connection to the spray gun and make
sure it issecure.Test the trigger by pressing it and making
sure it springs back into place when you releaseit. Put the
safety latch in the on position and test the trigger. You
should not be able to press the trigger.
Check In-Line Filter
Refer to Figure 8 and service the in-linefilter if it becomes
clogged, asfollows:
Nozzle Extension
O-rin
I. Detach spray gun and nozzle extension from high
pressure hose. Detach nozzle extension from spray
gun and remove o-ring and screen from nozzle
extension. Flush screen,spray gun, and adjustable
nozzle extension with cleanwater to clear debris.
2. If screen isdamaged,the o-ring kit contains a
replacement in-linefilter screen and o-ring. If
undamaged, reuse screen.
3. Place in-line filter screen into threaded end of nozzle
extension. Direction does not matter. Push screen in
with eraser end of a pencil until it rests flat at bottom
of opening. Take care to not bend screen.
4. Place o-ring into threaded end of nozzle extension.
Push o-ring snugly against in-line filter screen.
5. Assemble nozzle extension to spray gun, as described
earlier in this manual.
Purge Pump of Air and
Contaminants
To remove air from the pump, follow these steps:
I. Set up pressure washer asdescribed in "Preparing
PressureWasher For Use". Connect water supply and
turn water on.
2. Pull trigger on spray gun and hold.
3. When water supply is steadyand constant, engage
safety latch.
To remove contaminants from the pump, follow
these steps:
I. Set up pressure washer asdescribed in "Preparing
Pressure Washer For Use". Connect water supply and
turn water on.
2. Start engine according to instructions in "To Start
Pressure Washer".
3. Remove nozzle extension from spray gun.
4. Squeezetrigger on spray gun and hold.
5. When water supply is steady and constant, engage
safety latch and reattach nozzle extension.
Nozzle Maintenance
A pulsingsensation felt while squeezingthe spraygun
trigger may be caused by excessivepump pressure. The
principal cause of excessivepump pressure is a spray tip
cloggedor restricted with foreign materials, such asdirt,
etc. To correct the problem, immediately cleanthe spray
tip usingthe tools includedwith your pressure washer and
follow these instructions:
I. Shut off engine and turn off water supply.
2. Remove spray tip from end of nozzle extension.
3. Remove in-line filter from other end of nozzle
extension.
4. Use wire included in kit or a small paper clip to free
any foreign material clogging or restricting spray tip
(Figure 9).
5. Usinga garden hose, remove additional debris by back
flushing water through nozzle extension (Figure I0).
Back flush between 30 to 60 seconds.
/12

Generac Portable Products 3500 PSIPressureWasher
6. Reinstall spray tip and in-line filter into nozzle extension.
7. Reconnect nozzle extension to spray gun.
8. Reconnect water supply, turn on water, and start engine.
9. Test pressure washer by operating with each Quick
Connect spray tips.
O-Ring Maintenance
Through the normal operation of your pressure washer,
o-rings, which keep the connections of the hoses and
spray gun tight and leak-free, may become worn or
damaged.
An O-Ring Maintenance Kit is provided with your pressure
washer which includes replacement o-rings, rubber washer
and water inlet filter. Refer to the instruction sheet
provided in the kit to service your unit's o-rings. Note that
not all of the parts in the kit wilt be used on your unit.
To remove a worn or damaged o-ring; use a small flathead
screwdriver to get underneath the o-ring and pry it off.
ENGINE MAINTENANCE
See the engine owner's manual for instructions on how to
properly maintain the engine.
CAUTION
Used motor oil has been shown to cause skin cancer in
certain laboratory animals.
Thoroughly wash exposed areas with soap and water.
KEEPOUT OF REACH OF CHILDREN. DON'T
POLLUTE. CONSERVERESOURCES.RETURN
USED OIL TO COLLECTION CENTERS.
PUMP MAINTENANCE
For longest lasting service, follow the instructions given in
the check list (Figure I I).
IMPORTANT: Use 0.55 liter (18.6 ounces) of CAT Pump
6107 multi-viscosity oil. Oil alternatives include Mobil
DTE 16, Texaco Rondo 1660-H D 150, Amoco Rykon-68,
Shell Tellus "[-68, and Exxon Univis-68.
Follow the daily, hourly or calendar intervals, whichever occurs first.
Maintenance Item:
Clean Inlet Water Filter
Check Oil Level/Quantity
Check for Oil Leaks
Check for Water Leaks
Break-in Oil Change
*Routine Oil Change
**Seal Change
Valve Change
Check Accessories
Daily 50 hours
X
X
X
X
X
i :!i! iil i iiiii i! ii ! iiii !ii!!ii; !i!ii! i i!iiiil
500 hours
X
1,500 hours
X
X
3,000 hours
X
* If other than CAT Pump Model 6107 oil is used,change cycle should be every 300 hours.
** Eachsystem'smaintenance cycle will be exclusive. If system performance decreases,check immediately. If no wear at 1500 hours,
check againat 2000 hours and each 500 hours until wear is observed. Valvestypically require changingevery other seal change.
Duty cycle, temperature, quality of pumped liquid and inlet feed conditions all affect the life of pump wear parts and service cycle.
** Remember to service the unloader at each seal servicing and check all system accessories and connections before resuming
operation. Contact your local service center if questions arise.
I13

Generac Portable Products 3500 PSIPressureWasher
Check Oil Level
I. Place pressure washer on a level surface.
2. While pump and oil is cold, observe oil level visible in
pump's oil sight gauge.
3. Oil level should be visible and just below red dot. If
necessary, slowly add recommended oil through
pump's oil filler opening until oil level just touches
bottom of red dot. DO NOT fill above red dot!
Oil Change Procedure
I.
2.
3.
4.
5.
6.
7.
8.
9.
Place pressure washer on an outside level surface.
Start and run pressure washer for at least 5 minutes.
Turn off pressure washer and disconnect spark plug
wire from spark plug.
Place suitable container under oil drain hole.
Remove pump's oil filler cap and o-ring (Items 32 and
33 on page 18).
Remove oil drain plug (Items 48 and 49 on page 18)
and let oil drain out completely.
Replace oil drain plug and tighten securely (50 in-lbs
max. torque).
Use a funnel to add recommended amount and type of
pump oil.
Replace domed oil filler cap and o-ring. Tighten finger-
tight.
I0. Reconnect spark plug wire to spark plug.
I I. Take used oil to an oil recycling center.
PREPARING THE UNIT
FOR STORAGE
Water should not remain in the unit for long periods of
time. Sediments or minerals can deposit on pump parts and
"freeze" pump action. If you do not plan to use the pressure
washer for more than 30 days, follow this procedure:
I. Flush detergent siphoning tube by placing the filter into
a pail of clean water while running pressure washer in
low pressure mode. Flush for one to two minutes.
2. Shut off the engine and let it cool, then remove high
pressure and garden hoses. Disconnect spark plug wire
from spark plug.
3. Empty the pump of liquids by pulling the engine recoil
handle about 6 times. This should remove most of the
liquid in the pump.
4. Use pump saver to prevent corrosion build up and
freezing of pump.
5. Store unit in a clean, dry area.
Protecting the Pump
To protect the pump from damagecaused by mineral
deposits or freezing, use PumpSaverto treat pump. This
prevents freeze damageand lubricates pistons and seals.
NOTE: PumpSaver,model number01559,isavailableasan
optional accessory.It is not includedwith the pressurewasher.
CAUTION
•Failure to do so will permanently damageyour pumpand
render your unit inoperable.
•Freeze damage is not covered under warranty.
CAUTION
Always wear eye protection when using PumpSaver.
To use PumpSaver, make sure the pressure washer is
turned off and disconnected from supply water. Read and
follow all instructions and warnings given on the PumpSaver
container.
NOTE: PumpSaverwill drip from pump after treatment
and will stain wood and concrete.
NOTE: If PumpSaver is not available, draw RV antifreeze
(non-alcohol) into the pump by pouring the solution into a
3-foot section of garden hose connected to inlet adapter
and pulling recoil handle twice.
STORING THE ENGINE
See the engine owner's manual for instructions on how to
properly prepare the engine for storage.
I14

Generac Portable Products 3500 PSIPressureWasher
TROUBLESHOOTING
Problem
Pump has following
problems: failure to produce
pressure, erratic pressure,
chattering, loss of pressure,
low water volume.
Detergent fails to mix with
spray.
Engine shuts down during
operation.
Cause
I. Low pressure spray tip installed.
2. Water inletisblocked.
3. Inadequatewater supply.
4. Inlet hose iskinked or leaking.
5. Clogged inlet hose strainer.
6. Water supply isover 100°F.
7. High pressure hose is blocked or
leaks.
8. Gun leaks.
9. Spraytip isobstructed.
10. Pump isfaulty.
I. Detergent siphoning tube is not
submerged.
2. Chemical filter iscloggedor
cracked.
3. Dirty in-line filter.
4. Low pressure spray tip installed.
Out of gasoline.
Correction
I. Replacespray tip with high pressure
spraytip.
2. Clear inlet.
3. Provide adequatewater flow.
4. Straighten inlethose, patch leak.
5. Check and clean inlethose strainer.
6. Provide cooler water supply.
7. Clear blocks in outlet hose.
8. Replace gun.
9. Clean spray tip.
10. Contact Authorized service facility.
I. Insertdetergent siphoning tube into
detergent.
2. Cleanor replace fitter/detergent
siphoningtube.
3. See"Check In-LineFilter".
4. Replacespray tip with high pressure
spraytip.
Fillfuel tank.
i15

GeneracPortableProducts3500PSIPressureWasher
NOTES
/16

2 ¸ _rs
Generac Portable Products 3500 PSIPressureWasher
EXPLODED VIEW & PARTS LIST --- UNIT
21 _\ \1
Item Part # Description
I B190548AGS BASE
2 BB3861CGS HANDLE
3 BB4105GS BUMPER
4 B4805GS HOSE
5 30809GS GROMMET
6 192886GS KIT, Engine Mounting Hardware
7 B2516GS VINYL CAP
8 193003GS KIT, Pump Mounting Hardware
9 B4196GS KIT, Handle Hardware
10 192910GS KIT, Bumper Mounting Hardware
II 192553GS KIT, Vibration Mount
12 192135GS KIT, Garden Hose Inlet
13 95458GS QUICK CONNECT
F20
Item Part #Description
14 190146GS PUSHNUT
15 BI436BGS GUN
16 B4847GS KIT, SprayTips
17 192136GS KIT,Thermal Relief
18 190779GS EXTENSION
19 19291IGS KIT,Wheel
20 192796GS KIT, Chemical Hose/Filter
21 63281GS KEY
22 * 192193GS ASSY,Pump (see pages 18-19)
22 * 192194GS ASSY,Unloader (see pages 18-19)
900 NSP ENGINE
Note: * Complete Pump available from Cat Pumps only.
Items Not Illustrated:
Part # Description
193016GS MANUAL, Owner's
193044GS KIT, Decals
BB3061BGS OIL, Engine
191922GS KIT, O-RING MAINT & NZZL CLNNG
/17

Generac Portable Products 3500 PSIPressureWasher
2 ¸ _r3
EXPLODED VIEW 1PUMP
ill 18

2 ¸ _rs
Generac Portable Products 3500 PSIPressureWasher
PARTS LIST -- PUMP
Item Part # Qty Description
I I 18811IGS ISEAL,Oil, Crankshaft
32 192995GS I DOMED, Oil Filler
33 188118GS I O-RING, Filler Cap
37 188119GS I GAUGE, Oil Sight w/Gasket
90 188133GS 3 PLUNGER
100 188140GS 3 RETAINER,Seal
163 188149GS 6 O-RING, Seat
164 193000GS 6 SEAT
166 188152GS 6 VALVE
167 188153GS 6 SPRING
168 188154GS 6 RETAINER,Spring
172 188155GS 6 O-RING, ValvePlug
185 193001GS I MANIFOLD
255 193003GS I KIT, Mounting Bolt
299 188535GS I PLUG
300 188198GS I KIT,Seal (Includes: 98,106,121,127,128)
310 188199GS 2 KIT,Valve (Includes: 163,164,166,167,168,172)
400 192194GS I ASSY,UNLOADER, COMPLETE
401 192195GS I HANDLE, Adj.
402 188162GS I CAP, Adjusting
442 188182GS 2 WASHER, Seal
462 188187GS I SCREW, Flow-thru
463 188188GS I SCREW, Flow-thru
464 188189GS 2 WASHER, Seal
468 188201GS I KIT,O-Ring (Includes: 415,416,424,428,429,430,437,441,454)
469 188200GS I ASSY,Fixed Barb (Includes: 472,476,477,478)
477 188192GS I BALL
478 188193GS I SPRING
188212GS I OIL, Bottle, CAT
The listed Items are the only components/kits available from the factory.
Other components are available only from CAT PUMP_
/19

LavadoradePresibn3500PSIdeGeneracPortableProducts
TABLA DE CONTENIDOS
ReglasDe Seguridad .............................. 20-22
Conozca Su Generador .............................. 23
Ensamblaje...................................... 24-25
Funcionamiento.................................. 26-28
EspecificacionesDel Producto ......................... 29
Mantenimiento ................................... 29-32
AImacenamiento .................................... 32
Notas ............................................ 33
Diagnosticos De Averias.............................. 34
PiezasDe Recambio .............................. 16-19
Garantia .......................................... 35
DESCRIPCI( N DEL EQUIPO
Lea este manual de manera cuidadosa y
_fami|iaricese con su |avadora a presi6n. Conozca
sus usos, sus |imitaciones y cualquier pe|igro
relacionado con el mismo.
Se ha hecho cadaesfuerzo posible para asegurarse que la
informacibnque aparece en este manual es exacta y se encuentra
actualizada.Sinembargo, nosotros se reserva el derecho a
cambiar, alterar o de otra manera meiorar, el producto y este
documento en cualquier momento, sin previo aviso.
Enel estado de California es obligatorio, seg_nla ley,el uso de I
_pagachispas(Seccibn 4442 del Cbdigo de Recursos P_blicos de
_alifornia). Otros estados pueden tener leyes similares. Lasleyes I
_ederalesse aplican en tierras federales. Si equipa el silenciador I
:on un apagachispas,este deberg ser mantenido en buenas
:ondiciones de trabaio.
REGLAS DE SEGURIDAD
_IL "--stees el simbolo de alerta de seguridad. Sirvepara advertir al usuario de un posible riesgo para
su integridad fisica. Siga todos los mensajes de
seguridad que figuren despu_s de este simbolo
para eqitar lesiones o incluso la muerte.
Elsimbolo de alerta de seguridad (_.) esusado con una palabra
(PELIGRO,ADVERTENCIA, PRECAUCI6N), un mensaje por
escrito ounailustracibn,para alertarlo acerca de cualquier
situacibn de peligro que pueda existir. PELIGRO indicaun riesgo
el cual, si no se evita, causar_ la muerte ouna herida grave.
AOVERTENCIA indicaun riesgo el cual, si no se evita, puede
causar la muerte ouna herida grave. PRECAUCI6N indicaun
riesgo, el cual, si no se evita, puedecausar heridas menores o
moderadas. PRECAUCI6N, cuando seusa sin el simbolo de
alerta, indicaunasituacibn que podria resultar en el daho del
equipo. Sigalos mensaiesde seguridad para evitar oreducir los
riesgos de heridas e inclusivela muerte.
ADVERTENCIA
El escape del motor de este producto contiene
elementos quimicos reconocidos en el Estado de
California pot producir c_ncer, defectos de nacimiento
otros da_os de tipo reproductivo.
Simbolos de Peligro y Significados
Gases Tbxicos Descarga El_ctrica
SuperficiesResbalosas Caer InyeccibnLtquida
Fuego Explosi6n Superficie Caliente
Partes en Movimiento Obietos Voladores Contragolpe
i20