Nozzle Maintenance - Craftsman 580.676661 Manuel D'utilisation

Pressure washer parts should be kept clean to reduce the
risk of overheating and ignition of accumulated debris.
CAUTION
Improper treatment of pressure washer can
damage it and shorten its life.
• DO NOT insert any objects through cooling slots.
• Use a damp cloth to wipe exterior surfaces clean.
• Use a soft bristle brush to loosen caked on dirt, oil,
etc.
• Use a vacuum cleaner to pick up loose dirt and debris.
• Use low pressure air (not to exceed 25 psi) to blow
away dirt. Inspect cooling air slots and openings on
the pressure washer. These openings must be kept
clean and unobstructed.
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.
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 high pressure hose. Replace it.
• Replacement hose rating MUST exceed maximum
pressure rating of unit.
Check Gun and Nozzle Extension
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. Engage
trigger lock 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:
Nozzle extension
1. Detach nozzle extension from gun and remove
o-ring and screen from nozzle extension. Flush
screen, gun, and nozzle extension with clean water
to clear debris.
2. Place in-line filter screen into threaded end of
3. Place o-ring into recess. Push o-ring snugly against
4. Assemble nozzle extension to spray gun, as

Nozzle Maintenance

A pulsing sensation felt while squeezing the spray gun
trigger may be caused by excessive pump pressure.
The principal cause of excessive pump pressure is a
spray tip clogged or restricted with foreign materials,
such as dirt, etc. To correct the problem, immediately
clean the spray tip following these instructions:
1. Shut off engine and turn off water supply.
2. Remove spray tip from end of nozzle extension.
3. Remove in-line filter from other end of nozzle
4. Use a small paper clip to free any foreign material
Use wire here
5. Using a garden hose, remove additional debris by
6. Reinstall spray tip and in-line filter into nozzle
7. Reconnect nozzle extension to spray gun.
8. Reconnect water supply, turn on water, and start
9. Test pressure washer by operating with each
O–Ring Maintenance
Purchase an O–Ring Repair Kit at your local Sears
service 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.
In-line Filter
O-ring
• NEVER repair leaking connections with sealant of any
15
nozzle extension. Direction does not matter. Push
screen in with eraser end of pencil until it rests flat
at bottom of opening. Take care not to bend screen.
in-line filter screen.
described earlier in manual.
extension.
clogging or restricting spray tip.
to remove
debris.
back flushing water through nozzle extension.
Back flush between 30 to 60 seconds.
extension.
engine.
quick connect spray tips.
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.
kind. Replace o-ring or seal.