Repair
Repair
2. Loosen the four mounting nuts. Use two people to lift the entire pump up and out from the mounting plate. Place it on a work bench.
General Information
•Reference numbers and letters in parentheses in the text refer to the callouts in the figures and the parts drawing.
•Always use Genuine Graco Parts and Accessories, available from your Graco distributor. If you supply your own accessories, be sure they are adequately sized and pressure rated for your system.
Disconnect the Displacement Pump
1.Follow all steps under Preparation, page 18.
2.Loosen the screws on the top cap.
3.Hold the coupling nut (7) with a wrench. Use another wrench to turn the motor shaft. To avoid damage to the bellows top cap and the
Preparation
1.Flush the pump, if possible, page 16.
2.Stop the pump close to the middle of the stroke.
3.Follow Pressure Relief Procedure, page 14.
4.Disconnect the air and fluid hoses and the ground wire.
5.Remove the shield.
NOTE: If the overflow chamber (optional accessory) contains fluid, unscrew the bottle (103) and discard. If it has not been used, the bottle can remain attached to the cap.
To avoid the buildup of electrostatic charge, do not rub the plastic bottle with a dry cloth while it is attached to the pump. Remove the bottle to clean, if needed.
Disconnect the Pump
NOTE: Follow these instructions to remove the entire pump from the wall or cart bracket. For
1. Follow all steps under Preparation, page 18.
hold
turn
ti14531a
FIG. 7. Loosen the coupling nut.
4.Lower the coupling nut (7) and remove the coupling collars (5).
ti15365a
FIG. 8. Remove coupling collars.
18 | 312795E |
