Repair; Pressure Relief Procedure; Air Valve Repair - Graco SaniForce 1040 Repair Parts

Repair

Repair Repair
Pressure Relief Relief Procedure Procedure
Pressure Pressure Relief Procedure
Follow the Pressure Relief Procedure
whenever you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury
from pressurized fluid, such as splashing fluid,
Pressure Relief Relief Procedure
follow the Pressure Pressure Relief
stop dispensing and before cleaning, checking, or
servicing the equipment.
1. Close the master air valve (A) to shut off the air
to the pump.
2. Open 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. For For simple For simple transfer simple transfer applications, transfer
the fluid shutoff valve (J) or the fluid drain
valve (K).
b. For For circulating For circulating applications, circulating
fluid shutoff valve (J) is closed and open the
fluid drain valve (K).
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
3A6780E
Procedure when you
Procedure
applications, open either applications,
applications, ensure that the applications,
1. Follow the Pressure Relief Procedure, page 9
2. With a Torx (T20) screwdriver or 7 mm (9/32 in.)
socket wrench, remove the six screws (107), air
valve cover (109), and gasket (118).
3. Move the valve carriage (105) to the center
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.
4. Pull the two actuator pistons (114). Remove the
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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