O-Ring Maintenance; Engine Maintenance; Checking Oil Level; Changing Oil - Craftsman 580.768340 Owner's Manual

Insert wire into nozzle and turn back
and forth to clear obstruction.
• Remove additional debris by back flushing water
supply through nozzle extension. Back flush
between 30 to 60 seconds. Twist nozzle extension
to stream pattern and move nozzle from low to high
pressure while flushing.
• Reinstall nozzle into nozzle extension. Do Not
overtighten.
• Reconnect the water supply, turn ON the water,
and start the engine.
• Reconnect nozzle extension to spray gun.
• Test the pressure washer by operating with nozzle
in the high and the low pressure positions.
O-RING MAINTENANCE
Your pressure washer uses o-rings to keep hose and
spray gun connections tight and leak-free. Through
the normal operation of your unit, these o-rings may
become worn or damaged.
Provided with your pressure washer is an O-Ring
Maintenance Kit 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
will be used on your unit.
Parts in the O-Ring Kit Include:
• 1 o-ring, red, (p/n B2726) for the end of the spray
gun connection between spray 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
hose to spray gun 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 and 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
25 hours thereafter. If you are using your pressure
washer under extremely dirty or dusty conditions, or in
extremely hot weather, change oil more often.
Change oil while engine is still warm from running, as
follows:
• Rotate fuel valve to the "OFF" position to reduce
the possibility of fuel leakage.
• Remove all gasoline from tank.
• Clean area around oil fill, remove oil dipstick and
wipe it clean.
• Insert and remove the dipstick without screwing it
into the filler neck.
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