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Displacement Pump
310778N 15
Displacement Pump
See manual 309277 for pump repair instructions
Removal
1. Flush pump.
1. Fig. 7. Remove suction tube (114) and paint hose (63)
(remove at swivel end).
FIG. 7
2. Fig. 8. Push retaining spring up; push out pin (92).
FIG. 8
3. Fig. 9. Loosen jam nut. Unscrew pump.
FIG. 9
Installation
1. Fig. 10. Screw jam nut to bottom of pump threads. Screw
pump completely into manifold. Unscrew pump from
manifold until pump outlet aligns with hose. Hand tighten
jam nut, then tap 1/8 to 1/4 turn with hammer or torque to
200 ft-lb (270 N·m).
FIG. 10
2. Fig. 11. Slowly pull engine starter rope until pump rod pin
hole is aligned with hydraulic rod hole. Fig. 8. Push pin
(92) into hole. Push retaining spring (120) into groove.
FIG. 11
3. Fig. 12. Fill packing nut with Graco TSL.
FIG. 12
WARNING
Relieve pressure; page 6.
ti2272a
114
63
120
92
ti2272b
ti2272c
WARNING
If pin works loose, parts could break off and project
through the air and result in serious injury or property
damage. Make sure pin is properly installed.
CAUTION
If the pump jam nut loosens during operation, the
threads of the bearing housing and drive train will be
damaged. Tighten jam nut as specified.
ti2272d
ti2272e
92
ti2272f