Craftsman 580.768020 - Manual (Page 10)

BEFORE EACH USE
• Check water inlet screen for damage.
• Check high pressure hose for leaks.
• Check chemical tanks and filters for damage.
• Check gun and wand assembly for leaks.
• Purge pump of air and contaminants.
• Check engine oil level.
PRESSURE WASHER MAINTENANCE
Check and Clean Inlet Screen
Examine garden hose inlet screen. Clean if it-ig
clogged or replace tf it is tom.
Check High Pressure Hose .
fHigh 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.
DANGER; Never repair a high pressure hose.
Replace with hose that meets the minimum
pressure rating of your.cleaning^systern ' -
Check Chemical Reservoirs
Tank covers should snap cleanly onto tank. Ensure
chemical labels correctly identify tank contents.
Ensure that the System Rinse tank is filled with clean
water. Ensure that Dial-A-Cleaner™ selector knob
rotates freely between each position. Examine the .
tanks and replace if the filter is clogged.
Check Gun and-Wand
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. Put safety
latch in UP position and test trigger. You should not be
able to press trigger. Replace gun immediately if it
fails any of these tests.
Check In-Line RIter ,
Refer to the illustration and service the in-line filter if it
becomes clogged, as follows: '
A
Lance
In-line Filter
O-ring
1. Detach gun and lance from high pressure hose.
Detach lance from gun and remove o-ring and
screen from lance. Flush the screen, gun, and
lance with clean water to clear debris.
2. if the screen is damaged, the o-ring kit contains a
replacement in-line filter screen and an o-ring. If
undamaged, reuse screen.
3. Place the in-line filter screen into the threaded end
of the lance. Direction does not matter. Push the
screen in with the eraser end of a pencil until it
rests flat at the bottom of the opening. Take care to
not bend the screen.
4. Place the o-ring into the recess. Push the o-ring
snugly against the in-line filter screen.
5. Assemble the lance to the spray gun, as described
earlier in this manual.
Purge Pump of Air and Contaminants
To remove the air from the pump, follow these steps;
• Set up the cleaning system as described in the
ASSEMBLY section and connect the water supply.
• Remove the wand extension from the gun.
• Pull the trigger on the gun and hold until a steady
stream of water appears.
To remove the contaminants from the pump, follow
these steps:
• Set up. the cleaning system as described in the
ASSEMBLY section, and connect the water supply.
• Remove the nozzle attachment from the gun.
• Start the engine according to instructions in
OPERATION section.
• Pull the trigger on the gun and hold.
• When the water supply is steady and constant,
engage the safety latch and refasten the nozzle
attachment.
Nozzle Maintenance
If the nozzle becomes restricted or clogged with
foreign materials, such as dirt, excessive pump
pressure may develop. A partially clogged nozzle can
cause a pulsing condition during use. This generally is
not a pump related problem, but rather a clogged or
partially restricted nozzle.
If the nozzle becomes clogged or partially restricted,
immediately clean the nozzle with the kit included with
your cleaning system by following these instructions:
• Shut off the engine and turn off the water supply.
• Separate the wand from the gun.
• Rotate to stream setting.
• Remove nozzle from the end of the wand using a
2mm or 5/64 alien wrench.
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