Repair; Pressure Relief Procedure; Repair Or Replace Air Valve - VERDER VERDERAIR VA 25 Manual

Repair

Pressure Relief Procedure

Trapped air can cause the pump to cycle unexpectedly,
which could result in serious injury from splashing.
1. Shut off the air supply to the pump.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve fluid pressure.
Have a container ready to catch the drainage.

Repair or Replace Air Valve

Replace Complete Air Valve
1. Stop the pump. Relieve the pressure. See Pressure
Relief Procedure in previous section.
2. Disconnect the air line to the motor.
3. For motors with reed switch: Remove screw to
disconnect the reed switch assembly from the air
valve.
F . 1. Reed switch assembly and air line removal
IG
8 859.0089
4. Remove screws (109, metal pumps) or nuts (112,
5. To repair the air valve, go to Disassemble the Air
6. Align the new air valve gasket (108) on the center
7. For motors with reed switch: Use screw to attach
8. Reconnect the air line to the motor.
ti14094a
plastic pumps). Remove the air valve and gasket
(108).
Valve, step 1, in next section. To install a replace-
ment air valve, continue with Step 6.
housing, then attach the air valve. See Torque
Instructions, page 15.
the reed switch assembly to the new air valve.
Reconnect cable.