General Repair Information
311365H 9
General Repair Information
Pressure Relief Procedure
1. Turn pressure control knob to zero.
2. Turn ON/OFF switch to OFF.
3. Unplug power supply cord.
4. Hold metal part of gun firmly to grounded metal
pail. Trigger gun to relieve pressure.
5. Lock gun safety latch.
6. Open prime valve. Leave prime valve open until
ready to spray again.
NOTE: If suspected that spray tip or hose is com-
pletely clogged, or that pressure has not been fully
relieved after following steps above, VERY SLOW-
LY loosen tip guard retaining nut or hose end cou-
pling to relieve pressure gradually, then loosen
completely. Then clear tip or hose obstruction.
1. Keep all screws, nuts, washers, gaskets, and
electrical fittings removed during repair
procedures. These parts are not normally
provided with replacement assemblies.
2. Test repair after problem is corrected.
3. If sprayer does not operate properly, review
repair procedure to verify procedure was done
correctly. If necessary, see Troubleshooting,
page 11, for other possible solutions.
System pressure must be manually relieved to pre-
vent system from starting or spraying accidentally.
Fluid under high pressure can be injected through
skin and cause serious injury. To reduce risk of in-
jury from injection, splashing fluid, or moving parts,
follow Pressure Relief Procedure whenever you:
• are instructed to relieve pressure
• stop spraying
• check or service any system equipment
• install or clean spray tip
NOTICE
To reduce risk of pressure control malfunction:
• Use needle-nose pliers to disconnect wire.
Never pull on wire, pull on connector.
• Mate wire connectors properly. Center flat
blade of insulated male connector in
female connector.
• Route wires carefully to avoid interference
with other connections of pressure control.
Do not pinch wires between cover and
control box.
To reduce risk of serious injury, including electric
shock, do not touch moving or electrical parts with
fingers or tools while testing repair. Shut off and un-
plug sprayer when inspection is complete. Install all
covers, guards, gaskets, screws, washers and
shroud before operating sprayer.
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