Craftsman MGP-769010 User Manual

OWNER'S MANUAL
6.0 Horsepower 2400 PSI 2.4 GPM High Pressure Washer
Model No:
919.769010
WARNING: Before using this product, read this manual and follow all Safety Rules and Operating Instructions.
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
MGP-769010 7/20/01
• Safety
• Assembly
• Operation
• Maintenance
• Parts List
• Español
PRESSURE WASHER
CUSTOMER
HELPLINE
1-800-245-5873
2
Warranty ................................................................2
Safety Guidelines................................................3-5
Assembly ............................................................5-7
Operation..........................................................7-10
Product Specifications ........................................11
Maintenance ..................................................11-13
Service and Adjustments ..............................13-14
FULL ONE YEAR WARRANTY ON CRAFTSMAN HIGH PRESSURE WASHER
For one year from the date of purchase, when this Craftsman High Pressure Washer is maintained and operated according to the instructions in the owner’s manual, Sears will repair, free of charge, any defect in material and workmanship.
If your Craftsman Pressure Washer is used for commercial or rental purposes, this warranty applies only for 90 days from the date of purchase.
FULL TWO YEAR WARRANTY ON CRAFTSMAN ENGINE
For two years from the date of purchase, when this Craftsman engine is maintained and operated according to the instructions in the owner’s manual, Sears will repair, free of charge, any defect in material and workmanship.
If your Craftsman engine is used for commercial or rental purposes, this warranty applies only for 90 days from the date of purchase. This warranty does not cover expendable items such as spark plugs and air filters, which become worn during normal use.
Repairs necessary because of operator abuse or negligence, including damage resulting from no water being supplied to pump or failure to maintain the equipment according to the instructions contained in the owner’s manual, are not covered under warranty.
WARRANTY SERVICE IS AVAILABLE BY RETURNING THE HIGH PRESSURE WASHER TO THE NEAREST SEARS SERVICE CENTER THROUGHOUT THE UNITED STATES. This warranty gives you specific legal rights and you may also have other rights, which vary from state to state.
Sears, Roebuck and Co., D/817 WA, Hoffman Estates, IL 60179
Storage ................................................................14
Troubleshooting ..................................................15
Parts................................................................16-29
EPA Codes......................................................30-31
Español ..........................................................32-48
How to Order Parts ..............................Back Cover
TABLE OF CONTENTS
3
This manual contains information that is important for you to know and understand. This information relates to protecting YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the symbols below. Please read the manual and pay attention to these sections.
10/2/97
SAFETY GUIDELINES - DEFINITIONS
indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
indicates a potentially hazardous situation which, if not avoided, may
result in minor or moderate injury.
used without the safety alert symbol indicates a potentially hazardous
situation which, if not avoided, may
result in property
damage.
IMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT IN SERIOUS INJURY AND PROPERTY DAMAGE. READ AND UNDERSTAND ALL WARNINGS AND OPERATING INSTRUC-
TIONS BEFORE USING.
HAZARD HOW TO PREVENT ITWHAT CAN HAPPEN
RISK TO BREATHING
RISK OF EXPLOSION
OR FIRE
• Shut off engine and allow it to cool before adding fuel to the tank.
• Use care in filling tank to avoid spilling fuel. Move pressure washer away from fueling area before starting engine.
• Keep maximum fuel level ½” below top of tank to allow for expansion.
• Operate and fuel equipment in well ventilated areas free from obstructions. Equip areas with fire extinguishers suitable for gasoline fires.
• Never operate pressure washer in an area containing dry brush or weeds.
• Always keep pressure washer a minimum of four feet away from surfaces (such as hous­es, automobiles, or live plants) that could be damaged from muffler exhaust heat.
• Store fuel in an OSHA approved container, in a secure location away from work area.
• Do not spray flammable liquids
• Spilled gasoline and it’s vapors can become ignited from cigarette sparks, electrical arcing, exhaust gases, and hot engine components such as the muffler.
• Heat will expand fuel in the tank which could result in spillage and possible fire explosion.
• Operating the pressure washer in an explosive environment could result in a fire.
• Materials placed against or near the pressure washer can interfere with its proper ventilation features causing overheating and possible igni­tion of the materials.
• Muffler exhaust heat can damage painted sur­faces, melt any material sensitive to heat (such as siding, plastic, rubber, or vinyl), and damage live plants.
• Improperly stored fuel could lead to accidental ignition. Fuel improperly secured could get into the hands of children or other unquali­fied persons.
• Use of acids, toxic or corrosive chemicals, poisons, insecticides, or any kind of flammable solvent with this product could result in serious injury or death.
• Breathing exhaust fumes will cause serious injury or death.
• Some cleaning fluids contain substances which could cause injury to skin, eyes, or lungs.
• Operate pressure washer in a well ventilated area. Avoid enclosed areas such as garages, basements ,etc.
• Never operate unit in a location occupied by humans or animals.
• Use only cleaning fluids specifically recom­mended for high pressure washers. Follow manufacturers recommendations.Do not use chlorine bleach or any other corrosive compound
IMPORTANT SAFETY INSTRUCTIONS
• High velocity fluid spray can cause objects to break, propelling particles at high speed.
• Light or unsecured objects can become hazardous projectiles.
• Always wear ANSI approved Z87 safety glasses. Wear protective clothing to protect against accidental spraying.
• Never point wand at, or spray people or animals.
• Always secure trigger lock when wand is not in service to prevent accidental operation.
• Never permanently secure trigger in pull back (open) position.
RISK OF
INJURY
FROM SPRAY
4
RISK OF
ELECTRICAL
SHOCK
RISK OF CHEMICAL BURN
RISK OF HOT SURFACES
RISK TO FLUID
INJECTION
• Spray directed at electrical outlets or switches, or objects connected to an elec­trical circuit, could result in a fatal electrical shock.
• Unplug any electrically operated product before attempting to clean it. Direct spray away from electric outlets and switches.
• Your washer operates at fluid pressures and velocities high enough to penetrate human and animal flesh, which could result in amputation or other serious injury. Leaks caused by loose fittings or worn or damaged hoses can result in in­jection injuries. DO NOT TREAT FLUID IN­JECTION AS A SIMPLE CUT! See a phy­sician immediately!
• Relieve system pressure before attempting maintenance or disassembly of equipment.
• Never place hands in front of nozzle.
• Direct spray away from self and others.
• Make sure hose and fittings are tightened and in good condition. Never hold onto the hose or fittings during operation.
• Do not allow hose to contact muffler.
• Never attach or remove wand or hose fittings while system is pressurized.
• Use only hose and high pressure accessories rated for pressure higher than your pressure washer's p.s.i.
• To relieve system pressure, shut off engine, turn off water supply, and pull gun trigger until water stops flowing.
• Use of acids, toxic or corrosive chemicals, poisons, insecticides, or any kind of flam­mable solvent with this product could re­sult in serious injury or death.
• Do not use acids, gasoline, kerosene, or any other flammable materials in this product. Use only household detergents, cleaners and degreasers recommended for use in pressure washers.
• Wear protective clothing to protect eyes and skin from contact with sprayed materials.
• Do not use chlorine bleach or any other corrosive compound.
• Contact with hot surfaces, such as engines exhaust components, could result in seri­ous burn.
• During operation, touch only the control surfaces of the pressure washer. Keep children away from the pressure washer at all times. They may not be able to recognize the hazards of this product.
• Unsafe operation of your pressure washer could lead to serious injury or death to you or others.
If proper starting procedure is not
followed, engine can kickback causing serious hand and arm injury.
• The spray gun/wand is a powerful cleaning tool that could look like a toy to a child.
• Reactive force of spray will cause gun/wand to move, and could cause the operator to slip or fall, or misdirect the spray. Improper control of gun/wand can result in injuries to self and others.
• Become familiar with the operation and con­trols of the pressure washer.
• Keep operating area clear of all persons, pets, and obstacles.
• Do not operate the product when fatigued or under the influence of alcohol or drugs. Stay alert at all times.
• Never defeat the safety features of this prod­uct.
• Do not operate machine with missing, broken, or unauthorized parts.
• Never leave wand unattended while unit is running.
If engine does not start after two pulls,
squeeze trigger of gun to relieve pump pressure. Pull starter cord slowly until resistance is felt. Then pull cord rapidly to avoid kickback and prevent hand or arm injury.
• Keep children away from the pressure washer at all times.
• Do not overreach or stand on an unstable support. Grip gun/wand firmly with both hands. Expect the gun to kick when trig­gered.
RISK OF UNSAFE
OPERATION
HAZARD
WHAT CAN HAPPEN HOW TO PREVENT IT
5
Gun and Wand
Main Unit Pressure
Washer with Wheels
Handle High Pressure Hose
Chemical Pickup Hose and Filter
Owner’s Manual
Nozzle Cleaning Kit
Engine Oil
Rubber Isolator and Mounting Hardware
Handle Mounting
Hardware
Replacement O-Rings
ASSEMBLY
HAZARD
• Fuel or oil can leak or spill and could result in fire or breathing hazard, serious injury or death can result. Fuel or oil leaks will damage carpet, paint or other surfaces in vehicles or trailers.
• If pressure washer is equipped with a fuel shut-off valve, turn the valve to the off position before transporting to avoid fuel leaks. If pres­sure washer is not equipped with a fuel shut­off valve, drain the fuel from tank before trans­porting. Only transport fuel in an OSHA approved container. Always place pressure washer on a protective mat when transporting to protect against damage to vehicle from leaks. Remove pressure washer from vehicle immediately upon arrival at your destination.
WHAT CAN HAPPEN HOW TO PREVENT IT
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 force of the spray. Avoid the use of the concentrated spray stream except for very strong surfaces like concrete and steel.
Operating without flow of water will result in equipment damage. Operating the pressure washer with water supply shutoff 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 and the heated (recirculated) water to exit.
RISK OF INJURY AND
PROPERTY DAMAGE
WHEN TRANSPORTING OR
STORING
Carton Contents
• Main Unit pressure washer with wheels
• Handle
• High Pressure Hose
• Chemical Pickup Hose and Filter
•Gun
•Wand
Bag Containing
Video Cassette
Owner’s Manual
Nozzle Cleaning Kit and Replacement O-Rings
Engine Oil
Rubber Isolator and Mounting Hardware
Handle Mounting Hardware
Video Cassette
3. Mount the rubber isolator to the frame. To
mount isolator place threaded end of bolt through the washer.
Next with washer on bolt place threaded end
of bolt through the larger hole in bottom of the rubber isolator.
Place threaded portion of bolt through the
same hole location the wood plank was mounted to on the pressure washer.
Next place the tee nut over the threaded
portion of the bolt and use the Allen wrench provided to tighten isolator to the frame.
4. Connect wand extension to gun. To tighten, turn
knob in clockwise direction. Hand tighten.
5. Remove tie wrap off of high pressure hose. Unwind
high pressure hose and attach the threaded end to the gun. Tighten with adjustable wrench.
6. Connect high pressure hose to outlet on pressure
washer and hand tighten firmly. Connect chemical pickup hose to hose barb on pump.
NOTE: Always keep hose away from engine muffler.
6
Tools Required for Assembly
Adjustable wrench Allen wrench
Remove Pressure Washer from Carton
Open carton from the top. Locate and remove from
box the handle, gun, wand, videotape, and oil.
Cut carton along dotted lines.
Remove all carton inserts.
Roll unit through opening in carton.
NOTE: The hose is located at the bottom of the box.
Preparing the Pressure Washer for First Use
Note: Included with your pressure washer is a video
cassette tape on how to prepare your unit for operation. It is recommended you view this tape before performing the next steps.
1. Insert handle onto frame.
Insert knobs into the threaded slot in front of
the frame handle and tighten by turning in a clock-wise direction.
Slide bolts into the slot in the side of the frame
handle and tighten the nuts by turning in a clock-wise direction.
2. Using an adjustable wrench, remove nut from bolt
that attaches board to frame. Remove wood plank from the frame of the unit. Discard bolt and board.
CHEMICAL
HOSE
HIGH
PRESSURE
HOSE
Tighten knob in
clockwise direction
Insert bolt and tighten
lock nut.
ISOLATOR
WASHER
PRESSURE
WASHER
FRAME
BOLT
TEE NUT
7
7. Place assembled gun and wand on pressure
washer holder.
Checklist
Before going any further please review the following:
• Be sure you have completed assembly instructions.
Double check all fittings to be sure they are tight. IMPORTANT: Before any attempt to start your pres-
sure washer be sure to check engine oil (See Opera­tion under Engine Oil.)
OPERATION
PUMP- Develops high pressure. PRESSURE REGULATOR- Allows you to adjust the
pressure of the outlet stream. ENGINE RUN/STOP SWITCH- Sets engine in starting
mode for recoil starter — Stops running engine. RECOIL STARTER- Used for starting the engine
manually. SPRAY GUN ASSEMBLY (Contains Gun and Wand)-
Controls the application of water onto cleaning surface with trigger device.
OIL FILL- Port where engine oil is poured. GAS TANK/CAP- Cap is removed and unleaded
gasoline is poured. CHEMICAL INJECTION TUBE AND FILTER- Mixes
water and detergent in outlet water flow. HIGH PRESSURE OUTLET- Connection for high pres-
sure hose.
CHOKE- Lever used for starting unit.
8. Place pull cord into the wire bracket holder.Pull the
cord under the wire bracket to the right of the wire loop. Lift the pull cord handle up and slide the cord to the left, sliding the cord into the wire loop. Next slide handle behind the wire bracket to the left of the wire loop. Engine recoil will pull the cord into its final position.
Know Your High Pressure Washer
Read this Owner’s Manual and Safety Rules before operation of your High Pressure Washer
Compare this illustration with our pressure washer to familiarize yourself with the location of various con­trols and adjustments. Save this manual for future reference.
SPRAY GUN
ASSEMBLY
HANDLE
RECOIL
STARTER
OIL FILL
PUMP
WATER INLET CONNECTION
HIGH
PRESSURE
OUTLET
CHEMICAL
INJECTOR
TUBE & FILTER
PRESSURE
REGULATOR
ENGINE
STOP/START
CHOKE
GAS TANK/CAP
HIGH PRESSURE
HOSE
8
Read Owner’s Manual. Do not
attempt to operate equipment until you have read Owners Manual for Safety, Operation, and Maintenance Instructions.
Move throttle control to the stop position to turn pressure washer off.
Simply shutting OFF engine will not release pres­sure in the system. After engine has stopped, squeeze the trigger on the spray gun for about 3 seconds to relieve pressure. Spray stream will decrease in length.
IMPORTANT: This unit is equipped with a thermal relief valve. If unit is allowed to run for several minutes without pressing the trigger on the spray gun, several drops of water may be released through this valve to cool the unit. This small amount of water will drip from the bottom of the pump.
Note: Included with your unit is a video cassette that demonstrates how to operate your pressure washer. If you have a video cassette recorder you should to view the video before operation.
Before Starting The Engine
To operate the engine you will need to do the following. Note: Your pressure washer pump is a sealed pump,
you should never have to add or change the oil.
Engine Oil
Your unit has been shipped without oil in the engine. A bottle of SAE 30 weight oil is included in the carton. Remove oil dip stick located on top of the engine. Oil capacity is about 20 ounces of oil. The oil dip stick is clearly marked with a line that tells you when unit has enough oil. To check oil, place dipstick into oil fill. Tighten dipstick then remove. Do not fill above this point. Pour slowly.
NOTE: When adding oil to the engine crankcase, use a high quality detergent oil classified “For Service SF, SG, SH”, rated SAE 30 weight. Use no special additives. Select the oil’s viscosity grade according to your ex­pected operating temperatures.
Although multi-viscosity oils (5W30, 10W30, etc.) improve starting in cold weather, these multi-viscosity oils will result in increased oil consumption when used above 40°F. Check your engine oil level more frequently to avoid possible damage from running low on oil. Oil sump capacity is 20 ounces.
Gasoline
Your pressure washer engine is 4 cycle. Use unleaded fuel only.
THROTTLE
CONTROL
colder <——-----———40°F——————> warmer
Synthetic 5W-30 l SAE 30
Never adjust spray pattern when
spraying. Never put hands in front of spray nozzle to adjust spray pattern you could be injured.
Do not run pump without the water
supply connected and turned on. Failure to do so will result in pump damage.
Stopping Your Pressure Washer
Always check engine oil level before every start. Running engine
low of oil or out of oil could result in serious damage.
Never fill fuel tank indoors. To
avoid explosion and injury, never fill fuel tank when engine is running or hot. Do not smoke or have open flame when filling fuel tank.
Do not overfill the fuel tank. Always
allow room for fuel expansion.
Squeeze trigger on pressure washer wand to relieve air pressure caused by turning on the water. Water will spew out of the gun in a thin stream. This will make it easier to start the engine.
Engage the safety latch on the spray gun. This locks the trigger in place and keeps you from accidentally spraying a high pressure stream.
On the engine there is a choke/run lever. Place lever to the choke position.
On the engine there is a throttle control lever. Place throttle to the rabbit position. Always start engine with throttle in the rabbit (high speed) position.
Grasp the starter grip and pull slowly until resis­tance is felt, then pull firmly to start engine.
NOTE: If engine does not start right away, squeeze the trigger on the gun to relieve air pressure caused by turning on the water. Water will spew out of the gun in a thin stream. This will make it easier to pull start the engine. If more than five pulls, place choke lever back to run position.
When engine starts, gradually move choke lever to RUN position.
For hot engine restarts, make sure throttle is in the rabbit (high speed) position and the choke lever is in the RUN position.
Grasp the starter grip and pull slowly until resistance is felt, then pull firmly to start engine.
9
Use clean, fresh, regular unleaded gasoline with a minimum of 85 octane. Do not mix oil with gasoline. If unleaded fuel is unavailable leaded fuel may be used.
IMPORTANT: It is important to prevent gum deposits from forming in essential fuel system parts such as the carburetor, fuel filter, hose or tank during storage. Also, experience indicates that alcohol-blended fuels (called gasohol or using ethanol or methanol) can attract mois­ture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. To avoid engine problems, the fuel system should be emptied before storage of 30 days or longer. Never use engine or carburetor cleaner products in the fuel tank or perma­nent damage may occur.
To Start Your Pressure Washer
Remove gas cap.
Add unleaded gasoline, slowly, to fuel tank.
Do not overfill.
Connect garden hose to the water inlet on the pressure washer. Tighten by turning counterclock­wise.
Connect high pressure hose to discharge on pump.
Connect the garden hose to the water spout and turn water supply on.
SAFETY
LATCH
CHOKE
THROTTLE
CONTROL
(In Rabbit position)
PUMP
DISCHARGE
PUMP INLET
Never start pressure washer
without water source turned on and connected to pressure washer. Failure to do so will cause pump damage.
10
How To Use Your Pressure Washer
On the end of your spray gun is a nozzle that you can slide forward and backward and that you can also twist from side to side. With the adjustable nozzle you can adjust the spray pattern to either high pressure or low pressure. You can also adjust the spray so it is concentrated in a stream pattern or expanded into a fan pattern.
Slide the nozzle in a forward position to draw chemical and achieve low pressure. Pull nozzle back for high pressure.
To adjust your spray pattern twist the nozzle clock­wise for fan spray or counterclockwise for stream spray.
For most effective cleaning, keep spray nozzle between 8 and 24 inches from cleaning surface.
IMPORTANT: If you get spray nozzle too close especially on high pressure, you may damage the surface you are cleaning.
The pressure control knob is located on the pump. You can increase the pressure by turning the knob clockwise or decrease the pressure by turning the knob counterclockwise.
NOTE: This unit is set at its maximum pressure at the factory. Do not attempt to adjust the pressure higher than this factory setting.
Using Soaps/Chemicals
IMPORTANT: Use soaps and chemicals that are
designed specifically for use with pressure washers. To apply soaps/chemicals follow these steps:
Prepare the soap/chemical as required by your job.
Insert soap/chemical line into your container (soap/ chemicals and container not included).
Slide the adjustable nozzle forward to low pressure mode. Soap/chemicals cannot be applied with nozzle in high pressure position.
Review the use of the adjustable nozzle.
Connect garden hose to water inlet (see “To Start Your Pressure Washer” on page 9). Check that high pressure hose is connected to spray gun and pump (see Assembly), and start engine.
Apply soap/chemicals to dry surface, starting from the bottom and working up.
Allow the soap/chemicals to soak in between 3-5 minutes before washing and rinsing.
When rinsing on high pressure, start at lower portion of area to be washed and work upward, using long, even, overlapping strokes.
NOTE: Your pressure washer is equipped with a chemical injector adjustment knob. With the knob fully opened you will get a maximum chemical draw.With knob fully closed you will get no chemical draw. Turn knob in counterclockwise direction to achieve more chemical draw and clockwise for less chemical draw.
CHEMICAL
JUG
CHEMICAL
HOSE
PRESSURE
CONTROL
KNOB
CHEMICAL INJECTOR
ADJUSTMENT
KNOB
HHIIGGHH PPRREESSSSUURREE
LLOOWW PPRREESSSSUURREE
FFAANN SSPPRRAAYY
SSTTRREEAAMM SSPPRRAAYY
11
MAINTENANCE
General Recommendations
The warranty of the high pressure washer does not cover items that have been subjected to operator abuse or negligence. To receive full value from the warranty, operator must maintain high pressure washer as instructed in this manual.
Some adjustments will need to be made periodically to maintain your high pressure washer.
Once a year you should clean or replace the spark plug, and clean or replace the air filter, and thoroughly check the gun and wand assembly for wear. A clean spark plug and clean air filter assure proper fuel-air mixture and help your engine run better and last longer.
Your pressure washer pump is a sealed pump; you should never have to add or change the oil.
NOTE: Over time the o-rings in the gun assembly become worn. Attached to your owners manual is a replacement o-ring and split backup ring.
Product Specifications
Pressure Washer Specifications
Pressure 2400
Flow Rate 2.4 GPM
Cleaning Units (psi x GPM) 5760
RPM 3600
Rated Horsepower 6.0
Spark Plug Gap .030” (0.76mm)
Gasoline Capacity 1.5 quarts
Oil (22 oz. capacity) SAE 30 weight
Engine Specifications
O-ring
Split Backup
Ring
CUSTOMER RESPONSIBILITIES TABLE
MAINTENANCE TASK PRESSURE WASHER
ENGINE
check/clean inlet screen check high pressure hose check soap and chemical hose and filter check gun and wand for leaks purge pump of air and contaminants
check oil level change oil clean air cleaner and precleaner clean/replace spark plug clean engine muffler & finger guard
prepare for storage
BBeeffoorree
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EEvveerryy 2255 hhoouurrss
oorr yyeeaarrllyy
EEvveerryy 5500 hhoouurrss
oorr yyeeaarrllyy
EEvveerryy 110000
hhoouurrss oorr yyeeaarrllyy
PPrreeppaarree uunniitt ffoorr ssttoorraaggee iiff iitt iiss ttoo rreemmaaiinn iiddllee ffoorr lloonnggeerr tthhaann 3300 ddaayyss
X X X
X X
X
X
X
X X
12
CLEAN
CLEAN
Pressure Washer Maintenance
Check and Clean Inlet Screen: Examine inlet screen
on pump inlet fitting. Clean if clogged; replace if torn. Check High Pressure Hose: High pressure hose can
develop leaks from wear, kinking, abuse. Inspect hose each time before use. Check for cuts, leaks, abrasions or bulging of cover, and damage or movement of couplings. If any of these conditions exist, replace hose
immediately.
Check Chemical/Soap Hose: Examine the chemical/soap hose and clean if clogged. Hose should fit tightly on pump fitting. Check for leaks and tears. Replace filter or hose if either is damaged.
Check Gun and Wand: Examine hose connection to gun making sure it is secure. Test trigger by pressing it and making sure it springs back into place when you release it.
Pump Maintenance (Changing Pump Oil)
Your pressure washer pump is a sealed pump, you should never have to change oil.
Purge Pump of Air and Contaminants
To remove the air from the pump, follow these steps:
Set up the pressure washer as described in ASSEMBLY section and connect the water supply.
Remove the wand extension from the spray gun.
Pull the trigger on the gun and hold.
To remove the contaminants from the pump, follow these steps:
Set up the pressure washer as described in ASSEMBLY section, connect the water supply.
Remove the wand extension from the spray gun.
Start the engine according to instructions in the OPERATION section.
Pull the trigger on the gun and hold.
When the water supply is steady and constant, disengage trigger and refasten the wand extension.
Engine Maintenance Check Oil Level
Oil level should be checked prior to each use or at least every 5 hours of operation. To check oil see
Engine Oil on page 8.
Changing Engine Oil
Change oil while engine is still warm. Preferably drain oil from top of engine as illustrated below. Drain oil with air cleaner side up. Oil can be drained from engine bottom if necessary.
IMPORTANT: Before tipping engine or equipment to drain oil, drain fuel from tank by running engine until fuel tank is empty.
To drain oil from bottom of engine, remove drain plug as illustrated below. Allow oil to drain and replace drain plug. Remove dipstick and refill with new oil of recommended grade. Start and run engine at idle for 30 seconds.
Stop engine. Wait 30 seconds and re-check oil level. If required, add oil to bring level to FULL mark on dipstick.
PIPE
3/8” SQUARE
DRAIN HOLE
Check Engine — Finger Guard/Muffler
Do not clean engine with a forceful spray of water because water could contaminate fuel system. With a brush or cloth, clean any debris from finger guard after every use to prevent engine damage caused by overheating.
Before running engine, clean muffler area to remove all grass and combustible debris.
CLEAN
OIL DRAIN
PLUG
13
Clean Pre-Cleaner and Air Cleaner Cartridge
Your engine is equipped with an oval dual element air cleaner: the two elements include a foam pre-cleaner and an air cleaner cartridge.
• To remove the air cleaner element, loosen two cover screws and lift cover. Carefully remove foam pre­cleaner and air cleaner cartridge.
To clean pre-cleaner and air cleaner cartridge, wash in liquid detergent and water. Allow to dry thoroughly before using. Do not oil the precleaner or cartridge. Replace if very dirty or damaged.
After cleaning the pre-cleaner and air cleaner cartridge, replace pre-cleaner on air cleaner car­tridge.
Install air cleaner assembly (pre-cleaner and cartridge) in base. Then install cover on air cleaner and tighten screws securely to base.
Clean and Replace Spark Plug
Change the spark plug every 100 hours of operation or once each year, whichever comes first. This will help your engine to start easier and run better.
SERVICE AND ADJUSTMENTS
Carburetor
The carburetor of your high pressure washer is pre-set at the factory. The carburetor should not be tampered with. If your pressure washer is used at an altitude in excess of 5000 feet consult with your nearest Sears Service Center regarding high altitude set changes.
2 SCREWS
COVER
BASE
PRE-CLEANER
CARTRIDGE
RESISTOR
.030” (0.76 MM)
WIRE GAGE
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 supplied and the following instructions.
1. Shut off the pressure washer and turn off the water supply.
2. Disconnect spark plug wire.
NOTE: Do not use petroleum solvents, e.g., kerosene, which will cause the cartridge to deteriorate. Do not use pressurized air to clean cartridge. Pressurized air can damage the cartridge.
Engine speed was properly
adjusted at the factory and should require no additional adjustment. Do not attempt to change engine speed. If you believe the engine is running too fast or too slow, take your pressure to a Sears Authorized Service Center for repair and ad­justment.
High engine speeds are dangerous
and increase the risk of personal injury or damage to equipment.
Low engine speeds impose a heavy load on the engine and
could shorten engine life.
14
STORAGE
7. Direct water supply into nozzle end to back flush loosened particles for 30 seconds.
8. Reassemble the nozzle to the wand. Tighten securely to prevent leaks.
9. Reconnect wand to gun and turn on water supply.
10. Start pressure washer and place wand into high pressure setting to test.
Pump Preparation
This pressure washer should be stored in such a way to protect it from freezing. Do not store this unit outdoors or in an area where temperatures will fall below 32º F. This can cause extensive damage to this unit.
If unit has to be stored under freezing conditions a non­toxic R.V. anti-freeze should be put in the pump ac­cording to steps below to protect from freezing.
Be sure engine switch is in “OFF” position and spark plug wire has been removed from spark plug.
Pull the trigger on the spray gun to release the pressure in the high pressure hose. Detach high pressure hose and garden hose from the unit.
Pull the recoil on the engine 4 to 6 times to dis­charge remaining water in pump.
Tip the unit on the end with the water inlet fitting pointing upward.
If unit will be stored where temperatures fall below 32°F, pour approximately 1/4 cup of non-toxic R.V. anti-freeze down the fitting where the water hose
Set unit upright and pull starter handle on engine 4 to 6 times to circulate anti-freeze in pump until anti­freeze is discharged from the pump.
Preparing Pressure Washer for Storage
NOTE: If you do not plan to use your unit for 30 days
or more, unit should be prepared for storage.
IMPORTANT: It is important to prevent gum deposits from forming in essential fuel system parts such as the carburetor, fuel filter, hose or tank during storage. Also, experience indicates that alcohol-blended fuels (called gasohol or using ethanol or methanol) can attract mois­ture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. To avoid engine problems, the fuel system should be emptied before storage of 30 days or longer. Never use engine or carburetor cleaner products in the fuel tank or perma­nent damage may occur.
Engine Preparation
First add a fuel stabilizer to the fuel tank.
Run pressure washer for a full 5 minutes to allow fuel stabilizer to enter the fuel system.
Next shut off engine and disconnect the water supply.
Disconnect the spark plug wire and remove the spark plug.
Add one teaspoon of oil through the spark plug hole.
Place rag over spark plug hole and pull the recoil a few times to lubricate the combustion chamber.
Replace the spark plug, but do not connect the spark plug wire.
3. Pull trigger on gun handle to relieve any water pressure.
4. Disconnect the wand from the gun.
5. Remove nozzle from the the end of the wand with the 2mm Allen wrench provided.
6. Clean the nozzle using the nozzle cleaner provided or a straightened paper clip. Insert into the nozzle end and work back and forth until obstructions is removed.
While preparing the engine make sure water supply is turned on and
flowing to the unit. NEVER run unit without water supply running through pump. Failure to do so will cause pump damage.
15
TROUBLESHOOTING
PROBLEM
CAUSE
CORRECTION
Engine will not start (see Engine Manual for further engine trouble­shooting)
7. Chemical build up in chemical injector.
No or low pressure (initial use)
Will not draw chemicals
1. Wand not in high pressure.
1. See How to Use Wand paragraph in the Operation Section.
2. Low water supply.
2. Water supply must be at least 5 GPM @ 20 PSI.
3. Leak at high pressure hose.
3. Repair leak. Apply Teflon tape if necessary.
4. Nozzle obstructed.
4. Clean nozzle with paper clip or nozzle cleaning tool, pour water into nozzle end to flush out ob­struction.
5. Water filter screen clogged. 5. Remove and clean filter.
6. Air in hose.
6. Turn off the engine, then the water source. Disconnect the water source from the pump inlet and turn the water source on to remove all air from the hose. When there is a steady stream of water present, turn water source off. Reconnect water source to pump inlet and turn on water source. Squeeze trigger to remove remaining air.
7. Choke lever in the "Choke" position.
8. Throttle control lever is not in the "Fast" position.
9. High pressure hose is too long.
7. Move choke to the "No Choke" position.
8. Move throttle control lever to the "Fast" position.
9. Use high pressure hose under 100 feet.
1. No fuel.
2. Pressure builds up after two pulls on the recoil starter or after initial use.
3. Not primed or choked.
4. Spark plug wire not attached.
5. Choke lever in the "Choke" position on a "hot" engine or an engine that has been exposed to thermal heat for a long period of time.
1. Add Fuel.
2. Squeeze gun trigger to relieve pressure.
3. Push primer bulb 3 times or choke engine.
4. Attach spark plug wire.
5. Move choke to the "No Choke" position.
1. Wand not in low pressure.
2. Chemical filter clogged.
3. Chemical screen not in chemical
4. Chemical adjustment knob closed.
5. Chemical too thick
6. Pressure hose is too long
2. Clean filter.
3. Insure end of chemical hose is fully submerged into chemical.
4. Turn knob fully counterclockwise to open.
5. Dilute chemical. Chemical should be the same consistency as water.
6. Lengthen water supply hose instead of pressure hose.
7. Have parts cleaned or replaced by AWSC.
1. See How to Use Wand paragraph in the Operation Section.
16
PROBLEM
CAUSE
CORRECTION
No or low pressure (after period of normal use.)
Water leaking at gun/wand connection
Water leaking at pump
Oil leaking at pump
1. Worn seal or packing.
2. Worn or obstructed valves.
3. Worn unloader piston.
1. Worn or broken o-ring.
2. Loose hose connection.
1. Loose connections.
2. Piston packings worn.
3. Worn or broken o-rings.
4. Pump head or tubes damaged from freezing.
1. Oil seals worn.
2. Loose drain plug.
3. Worn drain plug, o-ring
4. Worn fill plug o-ring.
5. Pump overfilled.
6. Incorrect oil used.
7. Vent plug is clogged.
1. Have replaced by AWSC.
2. Have replaced by AWSC.
3. Have replaced by AWSC.
1. Check and replace.
2. Tighten.
1. Tighten.
2. Have replaced by AWSC.
3. Have replaced by AWSC.
4. Have replaced by AWSC.
1. Have replaced by AWSC.
2. Tighten.
3. Check and replace.
4. Check and replace.
5. Check for correct amount.
6. Drain and fill with correct amount and type of oil.
7. Clean vent plug; blow air through it to remove any blockage. If problem persists, replace plug.
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