Troubleshooting
Pressure Relief Procedure
WARNING
INJECTION HAZARD
To reduce the risk of serious injury, in- cluding fluid injection, splashing in the eyes or on the skin, or moving parts,
always follow the Pressure Relief Procedure whenever you
Dare instructed to relieve the pressure
Dshut off the pump
Dstop spraying/dispensing
Dcheck or service any of the system equipment
Dinstall or clean the spray tips/nozzles
1.Lock the gun/valve trigger safety.
2.Turn off the air to the motor.
3.Close the
4.Unlock the gun/valve trigger safety. Hold a metal part of the gun/valve firmly to a grounded metal pail. Trigger the gun/valve to relieve pressure.
5.Lock the gun/valve trigger safety.
6.Open the fluid drain valve. Leave the fluid drain valve open until you are ready to spray/dispense again.
If you suspect that the spray tip/nozzle or hose is completely clogged, or that pressure has not been fully relieved after following the steps above, very slowly loosen the tip guard retaining nut or hose end coupling to relieve pressure gradually, then loosen completely. Now clear the tip/nozzle or hose obstruction.
Stalled Motor
To restart a stalled motor, close the
WARNING
MOVING PARTS HAZARD
The piston in the air motor moves when air is supplied to the motor. Moving parts
can pinch or amputate your fingers or other body parts. Relieve the pressure before servicing the motor.
If Motor Will Not Operate
Check the following areas for damage or wear and replace parts as needed.
Air valving mechanism: director valve (3), spring (4), air valve housing (5), valve plate (2), valve plate seal
(1).
Trip rod: check for broken spring or bent rod (40). Do not attempt to repair the trip rod.
Damaged toggle mechanism: guide (16), spring (17), housing (18), pin (19).
307741 7
