Pump Maintenance; O-Ring Maintenance; Changing Pump Oil - Craftsman 580.767450 Owner's Manual

3.
4.
Remove in-line filter from other end of nozzle
extension.
Use wire included in kit (or a small paper clip) to
free any foreign material clogging or restricting
orifice.
.
Using a garden hose, remove additional debris by
back flushing water through nozzle extension.
Back flush between 30 to 60 seconds. Turn
adjustable nozzle extension to stream spray and
move nozzle from low to high while flushing.
6. Reinstall orifice and in-line filter into nozzle
extension. DO NOT overtighten orifice with allen
wrench.
7. Reconnect nozzle extension to spray gun.
8. Reconnect water supply, turn on water, and start
engine.
9. Test pressure washer by operating with nozzle in
high and low positions.
O-Ring
Maintenance
Through the normal operation of your cleaning system,
o-rings keep the connections of the hoses and spray
gun tight and leak-free. These o-rings may become
worn or damaged with use.
An O-Ring Maintenance Kit is provided with your
cleaning system 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 end of spray gun
connection between spray gun and nozzle
extension.
1 o-ring, yellow, (p/n B2264) for end of high
pressure hose.
NOTE: The previous two o-rings are close in size.
Please match carefully to assure proper o-ring usage.
1 water inlet screen (p/n B2384) for 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.
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 190585GS, by calling
1-800-366-PART or online at www.sears.com.
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.
Oil Cap
3. Tilt pressure washer to drain oil into an approved
container until it drips slowly from pump.
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