Graco 232-504 - Page 2

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Table of Contents
Safety W arnings 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service
Repairing
the Air V alve 16. . . . . . . . . . . . . . . . . . . . . .
Ball Check V alve Repair 18. . . . . . . . . . . . . . . . . . . . .
Diaphragm Repair 19. . . . . . . . . . . . . . . . . . . . . . . . . .
Bearing and Air Gasket Removal 22. . . . . . . . . . . . .
Pump Matrix 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Kit Matrix 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Chart 31. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard W arranty 32. . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 32. . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury .

This equipment is for professional use only .

Read all instruction manuals, tags, and labels before operating the equipment.
 Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor .

Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
 Check equipment daily . Repair or replace worn or damaged parts immediately .

Do not exceed the maximum working pressure of the lowest rated component in your system.
This equipment has a 120 psi (0.8 MPa, 8 bar) maximum working pressure at 120 psi
(0.8 MPa, 8 bar) maximum incoming air pressure.
 Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the
T echnical Data section of all equipment manuals. Read the fluid and solvent manufacturer ’s
warnings.

Do not use hoses to pull equipment.
 Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not ex -
pose Graco hoses to temperatures above 82  C (180  F) or below –40  C (–40 F).

Do not lift pressurized equipment.
 W ear hearing protection when operating this equipment.
 Comply with all applicable local, state, and national fire, electrical, and safety regulations.
WARNING
WARNING
INSTRUCTIONS