Graco 312794E Repair, Disconnect the Displacement Pump, General Information

Models: 312794E

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Repair

Repair

Repair

6. Lower the coupling nut (9) enough to remove the coupling collars (10), and then remove the coupling nut (9).

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.Stop the pump in the middle of the stroke.

2.Flush the pump, if possible. (See page 13). Relieve the pressure. (See page 11).

3.Disconnect the air and fluid hoses and the ground wire (13).

4.Remove the tie rod shield (11).

5.Hold the flats of the air motor piston rod with a wrench. Use another wrench to loosen the coupling nut (9).

ti12815a

9

10

ti12812a

ti12813a

7.Pull up on TSL reservoir (7) to remove.

8.Use a hammer and brass rod to loosen the jam nut (4). Unscrew the jam nut as far as possible.

9.Unscrew the displace- ment pump by hand and place on work

bench.

ti12816a

 

Threads are very sharp. Use a rag to protect hands when hand turning or carrying the pump.

312794E

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Graco 312794E important safety instructions Repair, Disconnect the Displacement Pump, General Information