Craftsman 580.753400 Owner's Manual page 13

PRESSURE WASHER
MAINTENANCE
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.
CAUTION!
NEVER repair a high pressure hose.
Replace with hose that exceeds the maximum
pressure rating of your pressure washer.
Check Spray 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.
Engage safety latch 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:
Nozzle Extension
1. Detach spray gun and nozzle extension 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 not to 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 this manual.
Purge Pump of Air and Contaminants
To remove air from the pump, follow these steps:
1. Set up pressure washer as described in
ASSEMBLY section and connect water supply.
2. Pull trigger on spray gun and hold until a steady
stream of water appears.
To remove contaminants from the pump, follow these
steps:
1. Set up pressure washer as described in
2. Remove nozzle extension from spray gun.
3. Start engine according to instructions in
4. Pull trigger on spray gun and hold.
5. When water supply is steady and constant,
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 using the tools included with your
pressure washer and follow 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
In-line Filter
Use wire here
O-ring
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, item number
7175116, at your local Sears or by calling
1-800-366-PART or online at www.sears.com. 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.
13
ASSEMBLY section, and connect water supply.
OPERATION section.
engage safety latch and refasten nozzle
extension.
extension.
clogging or restricting the spray tip.
to remove
debris.
back flushing water through nozzle extension.
Back flush between 30 to 60 seconds.
extension.
engine.
Quick Connect spray tips.