Repair
Repair
Preventive Maintenance
Schedule
The operating conditions of your system determine how often maintenance is required. Establish a preventive maintenance schedule by recording when and what kind of maintenance is needed, and then determine a regular schedule for checking your system.
Pressure Relief Procedure
•Trapped air can cause the pump to cycle unexpect- edly, which could result in serious injury from skin injection or moving parts.
•Do not lift or move motor while pressurized.
1.Engage the trigger lock.
2.Close the
3.Disengage the trigger lock.
4.Hold a metal part of the gun firmly to a grounded metal pail. Trigger the gun to relieve pressure.
5.Engage the trigger lock.
6.Open all fluid drain valves in the system, having a waste container ready to catch drainage. Leave drain valve(s) open until you are ready to spray again.
7.If you suspect the spray tip or hose is clogged or that pressure has not been fully relieved after follow- ing the steps above, VERY SLOWLY loosen tip guard retaining nut or hose end coupling to relieve pressure gradually, then loosen completely. Clear hose or tip obstruction.
Repair Air Valve
Replace Complete Air Valve
1.Stop the pump at the middle of its stroke. Relieve the pressure. See procedure at left.
2.Disconnect the air line to the motor.
3.For motors with DataTrak: Remove screw (32) to disconnect the reed switch (31) from the air valve (17).
air 
line
31
32
ti12727a
FIG. 3: Reed switch assembly & air line removal
312796R | 9 |