Air Valve Repair - Graco SaniForce 1040 Repair Parts List Manual

Repair
Repair Repair
Pressure Relief Relief Procedure Procedure
Pressure Pressure Relief Procedure
Follow the Pressure Relief Procedure
whenever you see this symbol.
Trapped air can cause the pump to cycle
unexpectedly, which could result in serious
injury from splashing. Follow the Pressure
Procedure when you stop pumping and before
Procedure Procedure
cleaning, checking, or servicing equipment.
1. Shut off the air to the pump.
2. Open any available outbound fluid valve to
relieve fluid pressure from the pump.
3. If fluid is still in the outbound fluid lines, isolate
this fluid as follows:
a. Close the outbound fluid valves.
b. Slowly remove the fluid connections from the
pump, and have a container ready to catch
any fluid that runs out.
Air Valve Valve Repair Repair
Air Air Valve Repair
Tools Required
• Torque wrench
• Torx (T20) screwdriver or 7 mm (9/32 in.) socket
wrench
• Needle-nose pliers
• O-ring pick
• Lithium base grease
Air valve repair kit 255122 is available. Use all parts
in the kit for best results.
Disassemble Air Air Valve Valve
Disassemble Disassemble Air Valve
3A6780C
1. Follow the
2. With a Torx (T20) screwdriver or 7 mm (9/32 in.)
Pressure Relief Pressure Relief Relief
3. Move the valve carriage (105) to the center
4. Pull the two actuator pistons (114). Remove the
Pressure Relief Procedure, page 9
socket wrench, remove the six screws (107), air
valve cover (109), and gasket (118).
position and pull it out of the cavity. Using a
needle-nose pliers, pull the pilot block (116)
straight up and out of the cavity.
u-cups (106) from the pistons. Pull the pilot pins
(112). Remove the o-rings (108) from the pilot
pins.
Repair
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