Pump Maintenance; Service Air Cleaner; Engine Maintenance; Checking Oil Level - Craftsman 580.676640 Owner's Manual

O–Ring Maintenance
Purchase an O–Ring Repair Kit, item number
191922GS, at your local Sears sevice center. It is not
included with the pressure washer. This kit 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.
WARNING
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 repair leaking connections with sealant of any
kind. Replace o-ring or seal.

Pump Maintenance

Changing Pump Oil
Change oil every 50 hours or once yearly, whichever
occurs first.
NOTE: You must purchase a premeasured bottle of
pump oil, item number 190586GS at your local Sears
sevice center.
Change pump oil as follows:
1. Drain engine oil and fuel from pressure washer.
2. Use a 8mm allen wrench to remove black pump
oil cap between high pressure outlet and garden
hose inlet.
3. Tilt pressure washer to drain oil into an approved
container until it drips slowly from pump.
4. Tilt pressure washer in opposite direction and
empty premeasured pump oil bottle into same
opening (a small funnel may be helpful).
5. Install black pump oil cap and tighten firmly.
6. Set pressure washer in upright position. Add fuel
and engine oil.

ENGINE MAINTENANCE

Checking Oil Level

Oil level should be checked prior to each use or at least
every 8 hours of operation. Keep oil level maintained.
Changing Oil
Change engine oil after the first 5 hours and every
50 hours thereafter. If you are using your pressure
washer under extremely dirty or dusty conditions, or in
extremely hot weather, change oil more often.
Avoid prolonged or repeated skin contact with used
motor oil.
• Used motor oil has been shown to cause skin cancer in
certain laboratory animals.
• Thoroughly wash exposed areas with soap and water.
Change oil while engine is still warm from running,
as follows:
1. Drain fuel tank by running pressure washer until
fuel tank is empty.
2. Disconnect spark plug wire and keep it away from
spark plug.
3. Clean area around oil fill, remove oil fill
cap/dipstick. Wipe dipstick clean.
4. Tip your pressure washer to drain oil from oil fill
into a suitable container making sure you tip your
unit away from spark plug and air cleaner. When
crankcase is empty, return pressure washer to
upright position.
5. Wipe dipstick clean, insert it into oil fill hole and
tighten securely, remove dipstick. Add
Oil Cap
recommended oil up to "Full" mark on dipstick.
Pour slowly. Wipe dipstick clean each time oil
level is checked. DO NOT overfill.
6. Install oil fill plug and dipstick, tighten securely.
7. Wipe up any remaining oil.
8. Reconnect spark plug wire to spark plug.

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 25 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:
1. Remove screw.
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CAUTION
KEEP OUT OF REACH OF CHILDREN.
DON'T POLLUTE. CONSERVE
RESOURCES. RETURN USED OIL TO
COLLECTION CENTERS.