Pressure Washer Maintenance; Clean Debris; Check In-Line Filter; Nozzle Maintenance - Craftsman 580.752420 Operator's Manual

PRESSURE WASHER
MAINTENANCE
Clean Debris
Daily or before use, clean accumulated debris from
pressure washer. Keep linkage, spring and controls
clean. Keep area around and behind muffler free from
any combustible debris.
Pressure washer parts should be kept clean to reduce
the risk of overheating and ignition of accumulated
debris.
• 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.
I WARNING
1
• 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 spray 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
trigger lock in UP position and test trigger. You should
not be able to press trigger. Replace spray 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:
In-line Filter
Nozzle Extension
O-rinc
1. Detach spray gun from high pressure hose.
Detach nozzle extension from spray gun and
remove o-ring and screen from nozzle extension.
Flush screen, spray gun, and nozzle extension
with clean water to clear debris.
2. Place in-line filter screen into threaded end of
nozzle extension. Direction does not matter. Push
screen in with eraser end of pencil until it rests flat
at bottom of opening. Take care to not bend
screen.
3. Place o-ring into recess. Push o-ring snugly
against in-line filter screen.
4. Assemble nozzle extension to spray gun, as
described earlier in manual.
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
nozzle clogged or restricted with foreign materials,
such as dirt, etc. To correct the problem, immediately
clean the nozzle following these instructions:
1. Shut off engine and turn off water supply.
Remove nozzle from end of nozzle extension.
,
3.
,
Remove in-line filter from other end of nozzle
extension.
Use a small paper clip to free any foreign material
clogging or restricting nozzle.
Use wire here II_,_,,_\}J
to remove /\\ _ -t_/Jf_
debns. /
5. Using a garden hose, remove additional debris by
back flushing water through nozzle extension.
Back flush between 30 to 60 seconds.
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