Craftsman 580.752300 Manual Del Usuario página 13

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
safety latch 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
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
2. Remove nozzle extension from gun.
3. Start engine according to instructions in "How To
4. Pull trigger on 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
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.
2. Remove nozzle from end of nozzle extension.
In-line Filter
O-ring
3. Remove in-line filter from other end of nozzle
4. Use a small paper clip to free any foreign material
5. Using a garden hose, remove additional debris by
6. Reinstall orifice and in-line filter into nozzle extension.
13
"Assembling Your Pressure Washer" section, and
connect water supply.
Use Your Pressure Washer" section.
engage safety latch and refasten nozzle
extension.
Separate nozzle extension from spray gun. Twist
nozzle clockwise to stream position. Using a 2mm
(5/64) allen wrench, remove orifice from end of
nozzle extension.
extension.
clogging or restricting orifice.
Insert wire into orifice and turn back
and forth to clear obstruction.
back flushing water through nozzle extension. Back
flush between 30 to 60 seconds. Turn adjustable
nozzle extension to stream spray and move nozzle
from low to high while flushing.
DO NOT overtighten orifice with allen wrench.