Craftsman 580.676662 Operator's Manual page 17

CAUTION
Improper treatment of pressure washer can damage it
and shorten its life.
• DO NOT insert any objects through cooling slots.
• Use a vacuum cleaner to pick up loose dirt and debris.
Check and Clean Inlet Screen
Examine the screen on the pump's water inlet. 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 repair high pressure hose. Replace it.
• Replacement hose rating MUST exceed maximum pressure
rating of unit.
Check Detergent Siphoning Tube
Examine the filter on the detergent tube and clean if clogged.
The tube should fit tightly on the barbed fitting. Examine the
tube for leaks or tears. Replace the filter or tube if either is
damaged.
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 trigger lock 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 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
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. ALWAYS point gun in a safe direction and squeeze spray
• Keep high pressure hose connected to pump and spray gun
while system is pressurized.
• ALWAYS point gun in safe direction and squeeze spray gun
trigger, to release high pressure, every time you stop engine.
Engage trigger lock when not in use.
3. Remove spray tip from end of nozzle extension.
4. Use a small paper clip to free any foreign material
Use wire here to
remove debris.
5. Remove nozzle extension from spray gun.
6. Remove in-line filter from other end of nozzle extension
7. Using a garden hose, remove additional debris by back
In-line Filter
8. Reinstall spray tip and in-line filter into nozzle extension.
O-ring
9. Reconnect nozzle extension to spray gun.
10. Make sure garden hose is connected to water inlet.
11. Engage trigger lock on spray gun and start engine following
12. Test pressure washer by operating with each quick
17
earlier in manual.
gun trigger to release retained high water pressure.
WARNING
The high pressure stream of water that this
equipment produces can cut through skin and its
underlying tissues, leading to serious injury and
possible amputation.
Spray gun traps high water pressure, even when
engine is stopped and water is disconnected,
which can cause injury.
clogging or restricting spray tip.
following instructions "Check In-Line Filter".
flushing water through nozzle extension. Back flush
between 30 to 60 seconds.
Check that high pressure hose is connected to spray gun
and pump. Turn on water.
instructions "How to Start Your Pressure Washer".
connect spray tip.