Repair; Pressure Relief Procedure; Repair Or Replace Air Valve - Graco Husky 1050 Repair Parts

Repair

Repair
WARNING
WARNING WARNING WARNING
SPECIAL CONDITIONS FOR SAFE USE
Equipment must comply with the following
conditions to avoid a hazardous condition
which can cause fire or explosion.
• All label and marking material must be
cleaned with a damp cloth (or equiva-
lent).
• The electronic monitoring system is
required to be grounded. See Grounding
instructions in your pump operation man-
ual.

Pressure Relief Procedure

Trapped air can cause the pump to cycle unexpect-
edly, which could result in serious injury from splash-
ing.
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 Pulse Count or DataTrak:
Remove screw to disconnect the reed switch
assembly from the air valve.
10
F . 1. Reed switch assembly and air line removal
IG
4. For motors with DataTrak: Remove two screws
and the solenoid bracket. Pull the solenoid out of
the air valve.
Aluminum Model
Shown
F . 2. Solenoid removal
IG
5. Remove screws (109, metal pumps) or nuts (112,
plastic pumps). Remove the air valve and gasket
(108).
6. To repair the air valve, go to Disassemble the Air
Valve, step 1, in next section. To install a replace-
ment air valve, continue with step 7.
7. Align the new air valve gasket (108) on the center
housing, then attach the air valve. See Torque
Instructions, page 18.
ti14094a
109
ti14095a
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