Craftsman 580.768331 User manual

6.0 HORSEPOWER
2400 PSI
2.2 GPM
HIGH PRESSURE WASHER
PRESSURE WASHER
CUSTOMER HELPLINE
1-800-222-3136
Model No. 580.768331
CAUTION: Before using this product,
read this manual and follow all Safety
Rules and Operating Instructions.
HOURS: Mon. - Fri. 8 a.m. to 5 p.m. (CT)
Part No. 186252 Draft 0 (2/8/2000)
SEARS, ROEBUCK and CO., Hoffman Estates, IL 60179 U.S.A.
Visit our Craftsman website: www.sears.com/craftsman
Operators Manual
• Safety
• Assembly
• Operation
• Maintenance
• Parts
• Español

CAUTION!When setting up, transporting,
adjusting or making repairs to your high
pressure washer, always disconnect the spark
plug wire from the spark plug and place the wire
where it cannot contact spark plug.
DANGER! Engine exhaust gases contain
DEADLY carbon monoxide gas. This dangerous
gas, if breathed in sufficient concentrations, can
cause unconsciousness or even death. Operate
this equipment only in the open air where
adequate ventilation is available.
DANGER! Gasoline is highly FLAMMABLE
and its vapors are EXPLOSIVE. Do Not permit
smoking, open flames, sparks or heat in the
vicinity while handling gasoline. Avoid spilling
gasoline on a hot engine. Allow unit to cool
before refueling. Comply with all laws regulating
storage and handling of gasoline.
Read this manual carefully and become familiar
with your pressure washer. Know its applications,
its limitations, and any hazards involved.
• Locate this pressure washer in areas away from
combustible materials, combustible fumes or dust.
• The high pressure equipment is designed to be used
with Sears authorized parts ONLY. If you use this
equipment with parts that do not comply with
minimum specifications, the user assumes all risks
and liabilities.
2
TABLE OF CONTENTS
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects, or
other reproductive harm.
WARNING:
WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . 14
REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . 16-23
EMISSION CONTROL WARRANTY. . . . . . . . . . . . . . . . 24
ESPAÑOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-39
HOW TO ORDER PARTS . . . . . . . . . . . . . . . BACK PAGE
WARRANTY
LIMITED WARRANTY ON CRAFTSMAN HIGH PRESSURE WASHER
For one year from the date of purchase, when this Craftsman 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 this washer is used for commercial purposes, this warranty applies for only 90 days from the date of
purchase. If this high pressure washer is used for rental purposes, this warranty applies for only 30 days after
date of purchase.
This warranty does not cover:
• Expendable items such as spark plugs or 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.
Warranty service is available by returning the high pressure washer to the nearest Sears service center or
dealer in 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., Dept. 817WA, Hoffman Estates, IL 60179
SAFETY RULES

3
• Some chemicals or detergents may be harmful if
inhaled or ingested, causing severe nausea, fainting
or poisoning. The harmful elements may cause
property damage or severe injury.
•Do Not allow CHILDREN to operate the pressure
washer at any time.
• Operate engine only at governed speed. Running the
engine at excessive speeds increases the hazard of
personal injury. Do Not tamper with parts which may
increase or decrease the governed speed.
•Do Not wear loose clothing, jewelry or anything that
may be caught in the starter or other rotating parts.
• Before starting the pressure washer in cold weather,
check all parts of the equipment and be sure ice has
not formed there.
• Never use a spray gun which does not have a trigger
lock or trigger guard in place and in working order.
• Keep the hose connected to machine or the spray
gun while the system is pressurized. Disconnecting
the hose while the unit is pressurized is dangerous.
• Units with broken or missing parts, or without
protective housing or covers, should NEVER be
operated.
• Check the fuel system for leaks or signs of
deterioration, such as chafed or spongy hose, loose
or missing clamps, or damaged tank or cap. Correct
all defects before operating the pressure washer.
•Do Not spray flammable liquids.
• Use a respirator or mask whenever there is a chance
that vapors may be inhaled. Read all instructions
with mask so you are certain the mask will provide
the necessary protection against inhaling harmful
vapors.
• Never aim the gun at people, animals or plants. The
high pressure stream of water that this equipment
produces can pierce skin and its underlying tissues,
leading to serious injury and possible amputation.
• Never allow any part of the body to come in contact
with the fluid stream. Do Not come in contact with a
fluid stream created by a leak in the high pressure
hose.
• Always wear eye protection when you use this
equipment or when you are in the vicinity where the
equipment is in use.
• High pressure spray can cause paint chips or other
particles to become airborne.
•Do Not operate the pressure washer above the rated
pressure.
• Never move the machine by pulling on the high
pressure hose. Use the handle provided on the unit.
• Always be certain the spray gun, nozzles and
accessories are correctly attached.
•Do Not secure the spray gun in the (open) position.
• High pressure spray may damage fragile items
including glass. Do Not point spray gun at glass
when in the jet spray mode.
• Hold the spray gun firmly in your hand before you
start the unit. Failure to do so could result in an injury
from a whipping spray gun. Do Not leave the spray
gun unattended while the machine is running.
• The cleaning area should have adequate slopes and
drainage to reduce the possibility of a fall due to
slippery surfaces.
• Keep water spray away from electric wiring or fatal
electric shock may result.
•Do Not by–pass any safety device on this machine.
• The muffler and engine heat up during operation and
remain hot immediately after shutting it down. Avoid
contact with a hot muffler or engine as you could be
severely burned.
• Operate and store this unit on a stable surface.
• High pressure hose can develop leaks from wear,
kinking, abuse, etc. Water spraying from a leak is
capable of injecting material into skin. Inspect hose
each time before using it. Check all hoses for cuts,
leaks, abrasions or bulging of cover, or damage or
movement of couplings. If any of these conditions
exist, replace hose immediately. Never repair high
pressure hose. Replace it with another hose that
meets maximum pressure rating of your unit.
• The muffler and air cleaner must be installed and in
good condition before operating the pressure
washer. These components act as spark arrestors if
the engine backfires.
In the State of California a spark arrestor is required by
law (Section 4442 of the California Public Resources
Code). Other states may have similar laws. Federal
laws apply on federal lands.
NOTE: If you equip the muffler with a spark arrestor, it
must be maintained in effective working order. You can
order a spark arrestor through your authorized Sears
service center.
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.

4
Your pressure washer requires some assembly and is
ready for use only after it has been properly serviced
with the recommended oil and fuel.
If you have any problems with the assembly of
your pressure washer, please call the pressure
washer helpline at 1-800-222-3136.
IMPORTANT: Any attempt to run the engine before it
has been serviced with the recommended oil will result
in an engine failure.
REMOVE PRESSURE WASHER FROM
CARTON
• Remove parts box shipped with your pressure
washer.
• Slice two corners oppisite guide handle end of
carton from top to bottom so the panel can be
folded down flat.
• Roll the pressure washer out the open end of the
carton.
• Raise guide handle, secure in place.
• Check carton for additional loose parts.
CARTON CONTENTS
Check all contents. If any parts are missing or
damaged, call the pressure washer helpline at
1-800-222-3136.
• The main unit
• Parts box (which includes items listed below)
Spray gun
High pressure hose
Nozzle extension with quick connect
Quick connect nozzles
Engine oil
Owner’s manual
Nozzle cleaning kit
O-Ring kit
Become familiar with each piece before assembling
the pressure washer. Check all contents against the
illustration on page 6. If any parts are missing or
damaged, call the pressure washer helpline at
1-800-222-3136.
ASSEMBLING YOUR PRESSURE
WASHER
Your Craftsman high pressure washer was mostly
assembled at the factory. However, you will need to
perform these tasks before you can operate your
pressure washer:
• Add oil to engine crankcase.
• Add fuel to fuel tank.
• Connect high pressure hose to the spray gun and
the pump.
• Connect water supply to the pump.
Add Engine Oil
IMPORTANT: Any attempt to crank or start the engine
before it has been properly serviced with the
recommended oil may result in an engine failure.
NOTE: When adding oil to the engine crankcase, use
only high quality detergent oil rated with API service
classification SF, SG, or SH rated SAE 30 weight.
Other viscosity oils shown in the chart may be used
when the average temperature in your area is within
the recommended range.
• Place pressure washer on a level surface.
• Clean area around oil fill and remove oil dipstick.
• Wipe dipstick clean. Pour oil into oil fill opening.
Replace and tighten dipstick, remove and and
check oil level. Oil level should be at “Full” mark on
the dipstick. DO NOT OVERFILL.
• Install oil dipstick, hand tighten securely.
NOTE: Check oil often during engine break–in.
ASSEMBLY
Lift the handle to
upright position and
slide the locking caps
into place

5
Add Gasoline
DANGER! Never fill fuel tank indoors. Never fill
fuel tank when engine is running or hot. Do Not
smoke when filling fuel tank.
WARNING! Never fill fuel tank completely full.
Provide space for fuel expansion. Wipe away
any fuel spillage from engine and equipment
before starting.
• Use fresh, clean unleaded automotive gasoline.
• Use clean fuel and store in approved, clean, covered
containers. Use clean fill funnels. Never use “stale”
gasoline left over from last season or gasoline stored
for long periods.
• Clean area around fuel fill cap, remove cap.
• Slowly add “UNLEADED” regular gasoline to fuel
tank. Use a funnel to prevent spillage. Slowly fill tank
to about 1/2” below the bottom of the filler neck.
• Install fuel cap and wipe up any spilled gasoline.
Connect Hose and Water Supply to Pump
IMPORTANT: You must assemble wand and attach all
hoses before you start engine. Starting engine without all
hoses connected and water supplied will damage pump.
• Uncoil high pressure hose and attach one end of
hose to the base of the spray gun. Tighten by hand.
• Attach other end of high pressure hose to the high
pressure outlet on the pump. Tighten by hand.
• Before you connect your garden hose to the water
inlet, inspect the inlet screen. Clean the screen if it
contains debris or have it replaced if damaged. Do
not run the pressure washer if the inlet screen is
damaged.
• Connect garden hose to water inlet. Tighten by hand.
• Turn ON the water (open valve completely).
• Squeeze trigger on gun to purge pump system of air
and impurities.
CAUTION! Before starting the pressure washer,
be sure you are wearing adequate eye protection.
• Attach nozzle extension to spray gun. Tighten by
hand.
CHECKLIST BEFORE STARTING
ENGINE
Review the unit to ensure you have performed all of the
following:
• Check that oil has been added to proper level in
engine crankcase before trying to start the pressure
washer.
• Add proper gasoline to fuel tank.
• Check for properly tightened hose connections (high
pressure and water supply) and for tight
connections and that there are no kinks, cuts, or
damage to the high pressure hose.
• Provide proper water supply (not to exceed 140°F).
• Be sure to read “Safety Rules” and “Operation”
sections before using the pressure washer.

6
KNOW YOUR PRESSURE WASHER
Read the owner’s manual and safety rules before operating your pressure washer.
Compare the illustrations with your pressure washer to familiarize yourself with the locations of various controls
and adjustments. Save this manual for future reference.
Air Filter – Dry type filter element limits the amount of
dirt and dust that gets in the engine.
Choke Knob - Used to help start a cold engine.
Detergent Pick–Up Tube and Filter – Use to draw
detergent from chemical bottle to the low pressure
water stream.
Gas Cap – Fill engine with regular unleaded gasoline
here.
High Pressure Hose – Connect one end to the spray
gun and other end to the high pressure outlet.
High Pressure Outlet – Connection for high pressure
hose.
Nozzle Extension with Quick Connect - Allows you
to switch between four different spray nozzles.
Oil Fill Cap – Fill engine with oil here. See page 4 for
oil recommendations.
Pump – Develops high pressure water .
Recoil Starter – Used for starting the engine
manually.
Spray Gun – Controls the application of water onto
cleaning surface with trigger device. Includes safety
latch.
Spray Nozzles - Chemical injection, 0°, 15°, 40°: for
various cleaning applications.
Throttle Control Lever – Sets engine in starting
mode for recoil starter and stops running engine.
Water Inlet – Connection for garden hose.
OPERATION
Spray Gun
High Pressure Hose
Detergent Pick–Up
Tube and Filter
Recoil Starter
Oil Fill Cap
Air Filter
Gas Cap
High Pressure Outlet
Throttle Control Lever
Water Inlet
Pump
Nozzle Extension
with Quick Connect
Choke Knob
Spray Nozzles

7
HOW TO USE YOUR PRESSURE
WASHER
If you have any problems operating your pressure
washer, please call the pressure washer helpline at
1-800-222-3136.
To Start Your Pressure Washer
The best way to start your engine-powered pressure
washer for the first time is to follow these instructions
step-by-step. This starting information also applies
whenever you start the engine after you have let the
pressure washer sit idle for at least a day.
• Place the pressure washer in an area close
enough to an outside water source capable of
supplying water at a flow rate greater than
2.2 gallons per minute.
• Check that the high pressure hose is tightly
connected to the spray gun and to the pump. See
“Assembling Your Pressure Washer” (page 5) for
illustrations.
• Make sure unit is in a level position.
• Connect the garden hose to the water inlet on the
pressure washer pump. Turn on the water.
CAUTION: Do Not run the pump without the
water supply connected and turned on. You
must follow this caution or the pump will be
damaged.
• Squeeze trigger on gun to purge pump system of
air and impurities.
• Attach nozzle extension to spray gun. Tighten by
hand.
• Choose the nozzle you want to use and insert it
into the nozzle extension. See “How to Use the
Nozzles”.
• Move the choke knob to the “Choke” position.
NOTE: For a warm engine, be sure the choke knob is
in the “Run” position.
• Engage the safety latch to the spray gun trigger.
• Move throttle lever to “Fast” position, shown here
as a rabbit.
• Pull the starter grip handle lightly until you feel
some resistance, then pull briskly.
• Return the starter grip handle slowly. Do Not let
rope “snap back” against starter.
• If the engine fails to start, disengage safety latch
and squeeze trigger on gun to release pump
pressure. Engage safety latch and repeat previous
two steps.
• If the choke knob was placed in the “Choke”
position to start the engine, move it slowly to the
“Run” position as the engine warms up enough to
run smoothly.
How to Stop Your Pressure Washer
• Move throttle lever on engine to “Stop” position.
•Squeeze trigger on the spray gun to relieve
pressure in the hose.
NOTE: A small amount of water will squirt out when
you release the pressure.
How to Use the Nozzles
DANGER! Never exchange nozzles without
locking the safety latch on the trigger.
The quick–connect on the nozzle extension allows you
to switch between four different nozzles. The nozzles
vary the spray pattern as shown below.
Safety Latch
40°
White 25°
Black
15°
Yellow 0°
Red
Low Pressure
Use to apply
chemical

8
To change nozzles:
• Engage the safety latch on the spray gun.
• Pull back the collar on the quick–connect and pull
the current nozzle off. Store the nozzle in the
space provided on the control panel.
NOTE: For a more gentle rinse, select white 40°
nozzle. To scour the surface, select yellow 15° or red
0° nozzle. To apply chemical, select black low
pressure nozzle.
• Pull back on the collar, insert the new nozzle and
release the collar. Pull on the nozzle to make sure
it is securely in place.
• For most effective cleaning, keep the spray nozzle
between 8 to 24 inches away from the cleaning
surface. If you get the spray nozzle too close, you
may damage the cleaning surface.
Cleaning and Applying Chemical
WARNING! You must attach all hoses before
you start the engine. Starting the engine without
all the hoses connected and without the water
turned ON will damage the pump.
IMPORTANT: Use soaps designed specifically for
pressure washers. Household detergents could
damage the pump.
To apply detergent follow these steps:
• Review the use of the nozzles.
• Prepare the detergent solution as required by the
manufacturer.
• Hang the detergent solution container on the hook
at the rear of the pressure washer.
• Place the small filter of the chemical injection tube
into the detergent container.
CAUTION! Keep the chemical injection tube
from coming in contact with the hot muffler. This
will damage the chemical injection tube. When
inserting the filter into a chemical bottle, route
the tube so as to keep it from inadvertently
contacting the hot muffler.
• Make sure the black nozzle is installed on the
nozzle extension.
NOTE: Detergent cannot be applied with the high
pressure nozzles (White, Yellow, or Red).
• Make sure the garden hose is connected to the
water inlet. Check that high pressure hose is
connected to spray gun and pump, then start
engine.
• Apply the detergent to a dry surface, starting at
lower portion of area to be washed and work
upward, using long, even, overlapping strokes. Do
Not allow the detergent to dry on. Allowing
detergent to dry on surface may cause streaking.
• Allow the detergent to soak between 3–5 minutes
before washing and rinsing. Reapply as needed to
prevent surface from drying.
Pressure Washer Rinsing
WARNING! Be extremely careful if you must
use the pressure washer from a ladder,
scaffolding or any other relatively unstable
location. Pressure in a running washer builds as
you climb. When you press the trigger, the recoil
from the initial spray could force you to fall. The
high pressure spray could also force you to fall if
you are too close to the cleaning surface.
After you have applied detergent, scour the surface
and rinse it clean as follows:
• Apply safety latch to spray gun.
• Remove the black chemical nozzle from the nozzle
extension.
• Select and install the desired high pressure nozzle
following the instructions “How to Use the Nozzles”
on page 7.
• Keep the spray gun a safe distance from the area
you plan to spray.
• Apply a high pressure spray to an small area and
then check the surface for damage. If no damage
is found, you can assume it is okay to continue
cleaning.
• Start at the top of the area to be rinsed, working
down with same overlapping strokes used for
cleaning.
• The use of a brush may be helpful on some hard to
clean surfaces.
Automatic Cool Down System (Thermal
Relief)
If you run the engine on your pressure washer for
3-5 minutes without pressing the trigger on the spray
gun, circulating water in the pump can reach a
temperature between 140–145°F. When the water
reaches this temperature, the automatic cool down
system engages and cools the pump by discharging
the warm water onto the ground. This system prevents
internal damage to the pump. Once the pump has
cooled, it will stop discharging.
NOTE: This is not a leak. Do Not return the pressure
washer.

9
PRODUCT SPECIFICATIONS
Pressure Washer Specifications
Pressure . . . . . . . . . . . . . . . . . . . 2400 PSI
Flow Rate . . . . . . . . . . . . . . . . . . 2.2 GPM
Chemical Mix . . . . . . . . . . . . . . . Use as directed
Water Supply Temperature . . . . . Not to Exceed 140°F
Engine Specifications
Rated Horsepower . . . . . . . . . . . 6.0 HP
Spark Plug
Type: . . . . . . . . . . . . . . . . Champion RJ19LM or
Equivalent
Set Gap To: . . . . . . . . . . . 0.030 inches
(0.760mm)
Gasoline Capacity . . . . . . . . . . . . 1.6 Quarts
Oil Above 40°F . . . . . . . . . . SAE 30
0°F - 40°F . . . . . . . . . . . SAE 5W-30 or10W-30
GENERAL RECOMMENDATIONS
The pressure washer’s warranty does not cover items
that have been subjected to operator abuse or
negligence. To receive full value from the warranty,
the operator must maintain pressure washer as
instructed in this manual.
Some adjustments will need to be made periodically to
properly maintain your pressure washer.
All service and adjustments should be made at least
once each season. Follow the requirements in the
“Maintenance Schedule” chart above.
NOTE: Once a year you should clean or replace the
spark plug and replace the air filter. A new spark plug
and clean air filter assure proper fuel-air mixture and
help your engine run better and last longer.
MAINTENANCE
OWNER’S RESPONSIBILITIES
Follow the hourly or calendar intervals, whichever occurs first.
More frequent service is required when operating in adverse conditions noted below.
PRESSURE WASHER
Check/clean water inlet screen
on quick-connect. X†
Check high pressure hose. X
Check detergent hose. X
Check spray gun and assembly for leaks. X
Purge pump of air and contaminants. X
ENGINE
Check oil level. X
Change engine oil. X**
Service air cleaner. X**
Service spark plug. X
Service spark arrester X
Prepare for storage.
MAINTENANCE SCHEDULE
FILL IN DATES AS YOU COMPLETE
REGULAR SERVICE
MAINTENANCE TASK
Before Each
Use
HOURLY OPERATING
INTERVAL
Every 50
Hours or
Yearly
Every 100
Hours or
Yearly
SERVICE DATES
Prepare unit for storage if it is to
remain idle for longer than 30 days.
† Clean if clogged. Replace if perforated or torn.
* Change oil after the first (5) operating hours and every 50 hours or every year, whichever occurs first,thereafter. Change
sooner when operating under dirty or dusty conditions.
** Replace more often under dirty or dusty conditions.

10
BEFORE EACH USE
• Check engine oil level.
• Check water inlet screen for damage.
• Check high pressure hose for leaks.
• Check chemical filters for damage.
• Check gun and wand assembly for leaks.
• Purge pump of air and contaminants.
PRESSURE WASHER
MAINTENANCE
Check and Clean Inlet Screen
Examine garden hose inlet screen. Clean if it is
clogged or replace if it is torn.
Check High Pressure Hose
High pressure hoses can develop leaks from wear,
kinking, or abuse. Inspect hose before each use.
Check for cuts, leaks, abrasions, bulging of cover, or
damage or movement of couplings. If any of these
conditions exist, replace hose immediately.
DANGER: Never repair a high pressure hose.
Replace with hose that meets the minimum
pressure rating of your pressure washer.
Check Gun and Wand
Examine hose connection to gun and make sure it is
secure. Test trigger by pressing it and making sure it
springs back into place when you release it. Put safety
latch in UP position and test trigger. You should not be
able to press trigger. Replace gun immediately if it
fails any of these tests.
Check In-Line Filter
Refer to the illustration and service the in-line filter if it
becomes clogged, as follows:
1. Detach gun and lance from high pressure hose.
Detach lance from gun and remove o-ring and
screen from lance. Flush the screen, gun, and
lance with clean water to clear debris.
2. If the screen is damaged, the o-ring kit contains a
replacement in-line filter screen and an o-ring. If
undamaged, reuse screen.
3. Place the in-line filter screen into the threaded end
of the lance. Direction does not matter. Push the
screen in with the eraser end of a pencil until it
rests flat at the bottom of the opening. Take care
to not bend the screen.
4. Place the o-ring into the recess. Push the o-ring
snugly against the in-line filter screen.
5. Assemble the lance to the spray gun, as
described earlier in this manual.
Purge Pump of Air and Contaminants
To remove the air from the pump, follow these steps:
• Set up the pressure washer as described in the
ASSEMBLY section and connect the water supply.
• Remove the wand extension from the gun.
• Pull the trigger on the gun and hold until a steady
stream of water appears.
To remove the contaminants from the pump, follow
these steps:
• Set up the pressure washer as described in the
ASSEMBLY section, and connect the water supply.
• Remove the nozzle attachment from the gun.
• Start the engine according to instructions in
OPERATION section.
• Disengage the safety latch and pull the trigger on
the gun and hold.
• When the water supply is steady and constant,
engage the safety latch and refasten the nozzle
attachment.
Nozzle Maintenance
If the nozzles becomes restricted or clogged with
foreign materials, such as dirt, excessive pump
pressure may develop. If the nozzles become partially
clogged, it can cause a pulsing sensation during use.
This generally is not a pump related problem, but
rather a clogged or partially restricted nozzle.
If the nozzles become clogged or partially restricted,
immediately clean the nozzles with the kit included
with your pressure washer by following these
instructions:
• Shut off the engine and turn off the water supply.
• Disengage the safety latch and pull the trigger on
the gun and hold until all water is purged from the
unit. Engage the safety latch on the gun.
• Remove the nozzle from the end of the nozzle
extension.
• Use the wire included in the kit or a small paper
clip to free the foreign materials clogging or
restricting the nozzle.
• Remove additional debris by rinsing out the nozzle.
Rinse between 30 to 60 seconds.
• Reinstall the nozzle into the nozzle extension.
Lance
In-line Filter
O-ring Use wire here to
remove debris.

11
• Reconnect the water supply, turn on the water, and
start the engine.
• Disengage safety latch on the gun.
• Test the pressure washer.
O–Ring Maintenance
Through the normal operation of your pressure
washer, the o-rings keep the connections of the hoses
and gun tight and leak–free. They may become worn
or damaged with use. Provided with your pressure
washer is an O-ring Maintenance Kit containing
replacement o-rings, rubber washer and a garden
hose inlet screen.
Parts in the O–Ring Kit Include:
• 1 o–ring, red, (p/n B2726) for the end of the spray
gun connection between gun and nozzle extension.
• 1 o–ring, yellow, (p/n B2264) for the end of the
high pressure hose.
NOTE: The above two o–rings are close in size.
Please match carefully to assure proper o–ring usage.
• 1 o-ring, blue, (p/n B3065) for the inside of the
nozzle extension quick connect.
• 1 rubber washer, (p/n B2385) for the inside of the
garden hose connector.
• 1 water inlet screen (p/n B2384) for the garden
hose connector.
To remove a worn or damaged O–Ring:
• Use a small flathead screwdriver to get underneath
the o–ring to gently pry it off.
ENGINE MAINTENANCE
Checking Oil Level
Oil level should be checked prior to each use or at
least every 5 hours of operation. Keep oil level
maintained.
Changing Oil
Change engine oil after the first 5 hours and every
50 hours or annually thereafter. If you are using your
pressure washer under extremely dirty or dusty
conditions, or in extremely hot weather, change oil
every 25 hours.
Change oil while engine is still warm from running, as
follows:
• Remove drain plug from the bottom of engine.
• Drain oil into a suitable container. When crankcase
is empty, replace drain plug in engine.

12
• Slowly pour oil into oil fill opening. Replace and
tighten dipstick, remove and check oil level. Oil
level should be at “Full” mark on dipstick. Do Not
overfill above that mark.
• When engine crankcase is filled to proper level,
install and tighten oil cap/dipstick.
• Wipe up any remaining oil.
Service Air Cleaner
Your engine will not run properly and may be
damaged if you run it with a dirty air cleaner.
Service the air cleaner once every 100 hours of
operation or once each year, whichever comes first.
Service more often if operating under dirty or dusty
conditions. Replacements are available at your local
Sears service center.
To service the air cleaner, follow these steps:
• Remove screws and lift cover.
• Carefully remove pre-cleaner and cartridge
assembly.
• After servicing pre-cleaner and cartridge, assemble
pre-cleaner on cartridge.
• Install pre-cleaner/cartridge in base.
• Place cover on air cleaner and tighten screws
securely to base.
Replace Spark Plug
Replace the spark plug yearly or every 100 hours of
operation.
CAUTION: Disconnect spark plug wire from
spark plug and keep wire away from spark plug.
• Clean area around spark plug and remove.
• For replacement use Champion RJ19LM or
equivalent.
• Check electrode gap with wire feeler gauge and set
gap at 0.030 inches (0.76mm), if necessary.
• Install spark plug, tighten securely.
Carburetor
If you think your carburetor needs adjusting, see your
nearest Sears service center. Engine performance
may be affected at altitudes above 4000 feet. For
operation at higher elevations, contact your nearest
Sears service center.
Spark Arrester Service
Your engine is not factory-equipped with a spark
arrester. In some areas, it is illegal to operate an
engine without a spark arrester. Check local laws and
regulations. A spark arrestor is available from your
nearest Sears service center. For the part number call
1-800-366-PART.
The spark arrester must be serviced every 50 hours to
keep it functioning as designed.
If the engine has been running, the muffler will be very
hot. Allow the muffler to cool before servicing the
spark arrester.
• Remove spark arrester screen for cleaning and
inspection.
• Replace if screen is damaged.

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STORAGE
AFTER EACH USE
Water should not remain in the unit for long periods of
time. Sediments or minerals can deposit on pump
parts and “freeze” pump action. Follow these
procedures after every use:
• 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.
• Shut off the engine and let it cool, then remove all
hoses.
• Disconnect spark plug wire from spark plug.
• Empty the pump of all liquids by pulling recoil
handle about 3 times. This should remove most of
the liquid in the pump.
• Coil the high pressure hose and inspect it for
damage. Cuts in the hose or fraying could result in
leaks and loss of pressure. Should any damage be
found, replace the hose. Do Not attempt to repair a
damaged hose. Replace the hose with the genuine
Craftsman part.
• Drain water from hose and properly hang it on the
wire support provided.
• Reconnect spark plug wire to spark plug.
• Store unit in a clean, dry area.
DANGER: Never store the engine with fuel in
the gas tank indoors or in enclosed, poorly
ventilated areas where fumes may reach an
open flame, a spark, or pilot light.
WINTER STORAGE
CAUTION: You must protect your unit from
freezing temperatures. Failure to do so will
permanently damage your pump and render
your unit inoperable.
To protect the unit from freezing temperatures:
• 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.
• Disconnect hose connected to chemical inject
fitting on the pump.
• Empty the pump of all pumped liquids by pulling
recoil handle about 3 times. This should remove
most of the liquid in the pump.
• Connect a 3-foot section of garden hose to the
water inlet adapter. Pour RV–antifreeze (antifreeze
without alcohol) into the hose. Pull the recoil handle
twice. Disconnect 3-foot hose.
• Properly dispose of leftover antifreeze.
LONG TERM STORAGE
If you do not plan to use the pressure washer for more
than 30 days, you must prepare the engine for long
term storage.
It is important to prevent gum deposits from forming in
essential fuel system parts such as the carburetor, fuel
filter, fuel hose or tank during storage. Also,
experience indicates that alcohol-blended fuels (called
gasohol, 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.
Protect Fuel System
Fuel additive:
If adding a fuel additive, fill the fuel tank with fresh
gasoline. If only partially filled, air in the tank will
promote fuel deterioration during storage. Engine and
fuel can be stored up to 24 months with additive.
• Add fuel additive following manufacturer’s
instructions.
• Make sure you have water supply to pump inlet
connected and turned ON.
• Run the engine outdoors for 10 minutes to be sure
that treated gasoline has replaced the untreated
gasoline in the carburetor.
If fuel additive is not used, remove all fuel from tank
and run engine until it stops from lack of fuel.
Change Oil
While engine is still warm, not hot, drain oil from
crankcase. Refill with recommended grade. See
“Changing Oil” on page 11.
Oil Cylinder Bore
• Remove spark plug. Squirt about 1/2 ounce of
clean engine oil into the cylinder. Cover spark plug
hole with rag. Pull recoil handle slowly to distribute
oil. Avoid spray from spark plug hole.
• Install spark plug. Do Not connect spark plug wire.
IMPORTANT: NEVER cover your pressure washer
while engine and exhaust area are warm.

14
TROUBLESHOOTING
Problem
Cause
Correction
Pump has following
problems: failure to
produce pressure, erratic
pressure, chattering, loss of
pressure, low water volume.
1. Low pressure nozzle (black) is
being used.
2. Water inlet is blocked.
3. Inadequate water supply.
4. Inlet hose is kinked or leaking.
5. Clogged inlet hose strainer.
6. Water supply is over 140°F.
7. High pressure hose is blocked
or leaks.
8. Gun leaks.
9. Nozzle is obstructed.
10. Pump is faulty.
1. Replace with any of the three
high pressure nozzles.
2. Clear inlet.
3. Provide adequate water flow.
4. Replace hose.
5. Check and clean inlet hose
strainer.
6. Provide cooler water supply.
7. Clear blocks in outlet hose.
8. Replace gun.
9. Clean nozzle.
10. Contact Sears service facility.
Detergent fails to mix with
spray.
1. Detergent siphoning tube is not
submerged.
2. Chemical filter is clogged.
3. A high pressure nozzle is being
used.
1. Insert detergent siphoning tube
into detergent.
2. Clean or replace filter/detergent
siphoning tube.
3. Replace with low pressure (black)
nozzle.
Engine runs good at no-
load but “bogs” when load
is added.
Engine speed is too slow.
Move throttle control to FAST
position. If engine still “bogs down”,
contact Sears service facility.
Engine will not start; or
starts and runs rough.
1. Dirty air cleaner.
2. Out of gasoline.
3. Stale gasoline.
4. Spark plug wire not connected
to spark plug.
5. Bad spark plug.
6. Water in gasoline.
7. Overchoking.
8. White smoke from exhaust.
9. Intake valve stuck open or
closed.
10. Engine has lost compression.
1. Clean or replace air cleaner.
2. Fill fuel tank.
3. Drain gas tank; fill with fresh fuel.
4. Connect wire to spark plug.
5. Replace spark plug.
6. Drain gas tank; fill with fresh fuel.
7. Open choke fully and crank
engine.
8. Contact Sears service facility.
9. Contact Sears service facility.
10. Contact Sears service facility.
Engine shuts down during
operation.
Out of gasoline.
Fill fuel tank.
Engine lacks power.
Dirty air filter.
Replace air filter.
Engine “hunts” or falters.
Choke is opened too soon.
Move choke to halfway position until
engine runs smoothly.

15
NOTES

16
CRAFTSMAN 2400PSI Pressure Washer 580.768331
Main Unit — Exploded View
PARTS

17
CRAFTSMAN 2400 PSI Pressure Washer 580.768331
Main Unit — Parts List
Item Part # Qty. Description
2 B1932 1 DECAL, Instructions
3 96307 1 DECAL, 1-800 Number
4 E186230 1 BASE, Polo Green Powder Coated
5 50190 2 WASHER, .34" x 1" Flat
6 B5670 1 DECAL, Unit 1433-0
7 30809 5 GROMMET, Rubber
8 B1631B 1 BILLBOARD
9 186212 2 TIRE, 10"
10 75402C 2 PUSHNUT, 5/8"
11 52858 2 NUT, M8 Locking Flange
12 27007 2 MOUNT, Vibration
13 51731 2 HHCS, M8 - 1.25 x 50
14 75246 3 TAPTITE, 3/8" - 16 x 1-1/4"
15 B4163 1 DECAL, 4 QD Nozzles
16 A1040B 1 HOSE, Chemical
17 A1041 1 FILTER, Chemical Hose
18 B2218 1 SEAL, Engine Donut
19 31669 1 CARRIAGE BOLT, 1/4"-20 x 1 3/4"
20 48031G 1 CLAMP, Hose 3/8"
21 B4925A 1 PUMP, EG 7/8" w/Thermal
22 97100 1 CAP, High Pressure
23 23707 4 SHCS, 5/16" - 24 x 1"
24 B1460 1 CAP, Vinyl
25 EB5676 1 HANDLE, Polo Green Powder Coated
26 B1779 2 COVER, Hinge
27 B2347 2 CAP, End
28 B2759 1 HOOK, Chemical Bottle
29 B2071 2 NUT, 1/4"-20 Locking Flange
30 46476 2 CAP, Plug
31 B2516 3 CAP, Vinyl
32 21424 1 CONNECTOR, Garden Hose
33 A1408 1 CAP, Hose Connector
34 B5689 1 HOSE, 1/4" x 30'
35 B5646 1 KIT, Quick Connect
36 B3858 1 WAND, Extension
37 B3263 1 GUN, High Pressure
38 B5830 1 KIT, Maintenance
39 B2509 1 KIT, Nozzle, Cleaning
40 186252 1 MANUAL
41 NSP 1 OIL, Engine
42 B4224 1 SCREEN, Gun Inlet
43 97837 1 O-RING, Hi Pressure Trns
900 NSP 1 ENGINE, B & S, 6HP Intek

18
PARTS
CRAFTSMAN 2400 PSI Pressure Washer 580.768331
Pump — Exploded View

19
CRAFTSMAN 2400PSI Pressure Washer 580.768331
Pump — Parts List
Item Part # Qty Description
1 B2218 1 O-RING, 1.625 ID x .103
2 97962 3 SHCS, M6 - 1 x 25
3 B5710 1 VALVE, 1/8 npt 1-5 PSI
4 97835 1 O-RING, Housing Seal
5 21783 1 THERMAL RELIEF, GPW-EG
6 93680 3 SEAL, Oil Piston
7 97831 3 SPACER, Pilot
8 B2702 1 HOUSING, Piston
9 B4813 1 ADAPTER, Engine
10 97841 3 CAP, Outlet Check Valve
11 40946 4 SHCS, M6-1.0 x 35
12 185710 0 KIT, AXIAL CAM
1 . . . . . . 1 O-RING, Engine Seal
2 . . . . . . 3 SHCS, M6 - 1 x 25
4 . . . . . . 1 O-RING, Housing Seal
13 . . . . . . 1 WASHER, Brg. 36 x 65 x 6Thk
14 . . . . . . 2 ASSY., Brg. Cage 45 x 65
15 . . . . . . 3 WASHER, Brg. 45 x 65 x 1
16 . . . . . . 1 CAM, Axial 5.6 7/8"SAE
17 185287 0 KIT, CHEM INJECT
18 . . . . . . 1 FITTING, Chem Inject
19 . . . . . . 1 BALL, Chem Inject
20 . . . . . . 1 SPRING, Chem Inject
21 . . . . . . 1 O-RING, Venturi & Seat, Black
22 . . . . . . 1 VENTURI, Chem Inject
28 . . . . . . 1 O-RING, Venturi, Yellow
23 185711 0 KIT, UNLOADER 2300
21 . . . . . . 1 O-RING, Venturi & Seat, Black
24 . . . . . . 1 CAP, Unloader
25 . . . . . . 1 O-RING, Unloader Cap
26 . . . . . . 1 SPRING, Unloader
27 . . . . . . 1 PISTON, Unloader
29 . . . . . . 1 SEAT, Unloader
30 . . . . . . 1 WASHER, 1.5mm Shim
Item Part # Qty Description
31 185712 0 KIT, CHECK VALVES
11 . . . . . . 4 SHCS, M6-1.0 x 35
32 . . . . . . 3 O-RING, Check Valve
33 . . . . . . 6 ASSY., Check Valve
45 . . . . . . 3 O-RING, Check Valve, White
34 185531 0 KIT, HEAD BRASS EG
11 . . . . . . 4 SHCS, M6-1.0 x 35
35 . . . . . . 1 HEAD, Pump
36 . . . . . . 1 PLUG, 1/8-28
37 185713 0 KIT, PISTON & SPRING
1 . . . . . . 1 O-RING, Engine Seal
2 . . . . . . 3 SHCS, M6 - 1 x 25
4 . . . . . . 1 O-RING, Housing Seal
38 . . . . . . 3 RETAINER, Piston Spring
39 . . . . . . 3 PISTON, Dia. 15 x 65 Lg
40 . . . . . . 3 SPRING, Piston Return
41 185714 0 KIT, O-RING/SEAL 2300
1 . . . . . . 1 O-RING, Engine Seal
2 . . . . . . 3 SHCS, M6 - 1 x 25
4 . . . . . . 1 O-RING, Housing Seal
6 . . . . . . 3 SEAL, Oil Piston
11 . . . . . . 4 SHCS, M6-1.0 x 35
21 . . . . . . 2 O-RING, Venturi & Seat, Black
25 . . . . . . 1 O-RING, Unloader Cap
28 . . . . . . 1 O-RING, Venturi, Yellow
32 . . . . . . 3 O-RING, Check Valve
42 . . . . . . 3 SEAL, Double-Lip
43 . . . . . . 1 O-RING, High Pressure
Transfer
44 . . . . . . 3 O-RING, Outlet CV Cap
45 . . . . . . 3 O-RING, Check Valve, White
Item numbers 12, 17, 23, 31, 34, 37, and 41 are
service kits and include all parts shown within the box.
Certain parts may only be available as components of
a kit.

20
ENGINE, 6.0 HP, Briggs and Stratton, 120612 – Exploded View