Craftsman 580.753000 - Manual (Page 13)

BEFORE EACH USE
1. Check engine oil ievel.
2. Check water iniet screen for damage.
3. Check high pressure hose for leaks.
4. Check chemical filters for damage.
6. Check spray gun and nozzle extension assembly
for leaks.
6. Purge pump of air and contaminants.
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.
^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 rspair high pressure hose.; Replace it.
; Replacement hose ratir^i 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
safety latch 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:
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.
Purge Pump of Air and Contaminants
To remove air from the pump, follow these steps:
1. Set up pressure washer as described in
"Assembling Your Pressure Washer" section and
connect water supply.
2. Pull trigger on 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
"Assembling Your Pressure Washer" section, and
connect water supply.
2. Remove nozzle extension from gun.
3. Start engine according to instructions in “How To
Use Your Pressure Washer* section.
4. Pull trigger on gun and hold.
5. When water supply is steady and constant, engage
safety latch and refasten nozzle extension.
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
extension.
4. Use a small paper clip to free any foreign material
clogging or restricting spray tip.
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