User manual GRACO PNEUMATIC BACK PRESSURE REGULATOR 311595C
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Manual abstract: user guide GRACO PNEUMATIC BACK PRESSURE REGULATOR311595C
Detailed instructions for use are in the User's Guide.
[. . . ] · Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all equipment manuals. Read fluid and solvent manufacturer's warnings. For complete information about your material, request MSDS forms from distributor or retailer. [. . . ] Apply thread lubricant to the adapter (110). Screw the diaphragm housing (2) onto the adapter. Return the back pressure regulator to operation.
1. Shut off air to the back pressure regulator. Unscrew the diaphragm housing (2) from the back pressure regulator (1).
2 3
Torque to 15-20 ft-lb (21-27 N·m). Torque to 120-130 in-lb (13. 6-14. 7 N·m) oppositely and in sequence, three times. Apply thread lubricant.
5
111
5
3
Apply thread lubricant.
2
110
5
107
5
104 1 103 102 5 6 101 6 5
ti8554a
2
112 113
FIG. Separate Diaphragm Housing from Back Pressure Regulator 4. Remove the screws (111) and adapter (110) from the back pressure regulator housing. If damaged, remove the seat and gasket (102). Install a new gasket (102) and torque the new seat to 15-20 ft-lb (21-27 N·m). Install the adapter (110) and screws (111). Torque the screws to 120-130 in-lb (13. 6-14. 7 N·m) oppositely and in sequence, three times. Back Pressure Regulator Repair
ti8555a
4
311595C
Repair
Diaphragm Repair
1 2 3
Apply thread sealant and torque to 75-80 in-lb (8. 5-9. 0 N·m). Torque to 170-190 in-lb (19-21 N·m) in alternating pattern. Shut off air to the back pressure regulator. Disconnect the air supply line from the inlet fitting (216). Remove the screws (209) and cover (203). Lift the piston rod assembly out of the housing (201). Inspect the piston rod (210) for damage. Disassemble the piston and replace parts as needed. To reassemble the piston, apply thread sealant and torque the screw (211) to 75-80 in-lb (8. 5-9. 0 N·m). [. . . ] This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation. [. . . ]
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