Craftsman 580.752 Pressure Washer User Manual


 
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. Ifany of these
conditionsexist, replace hose immediately.
WARNING
pressure rating 0f 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 inl:o place when you release it. Engage
safety lal:ch 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:
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 1:oinstructions in =How To
Use Your Pressure Washer" section.
4. Pull trigger on gun and hold.
5. When water supply is s1:eadyand cons1:ant,engage
safety la1:chand refes1:ennozzle 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
nozzle clogged or restricted with foreign materials,
such as dirt, e1:c.To correct the problem, immedia1:ely
clean the nozzle following these ins1:ructions:
1. Shut off engine and turn off water supply.
2. Remove nozzle from end of nozzle extension.
Separa1:e nozzle extension from spray gun. Twist
nozzle clockwise to stream position. Using a 2ram
(5/64) allen wrench, remove orifice from end of
nozzle extension.
N0zzle extension = 3. Remove in-line filter from other end of nozzle
O-ring
extension.
1. De1:achnozzle extension from gun and remove 4. Use a small paper clip to free any foreign material
o-ring and screen from nozzle extension. Flush clogging or restricting orifice.
screen, gun, and nozzle extension with clean water
to clear debris.
2. Place in-line fil1:erscreen intothreaded end of
nozzle extension. Direction does not matter. Push
screen in with eraser end of pencil until it rests fiat
at bottom of opening. Take care not to bend
screen.
Insertwireint00rificoandtumback
3. Place o-ring into recess. Push o-ring snugly against and forth t0 Clear 0bstructi0ni
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
ofwater appears.
5. Using a garden hose, remove additional debris by
back flushing wa1:erthrough nozzle extension. Back
flush belween 30 to 60 seconds. Turn adjustable
nozzle extension to stream spray and move nozzle
from low to high while flushing.
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