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Displacement Pump
18 313776G
Displacement Pump
See manual 311845 for pump repair instructions.
Removal
1. Flush pump.
2. Relieve pressure, page 7.
3. F
IG. 7. Remove suction tube (34) and hose (26).
4. F
IG. 8. Push retaining spring (194) up. Push out pin
(249).
5. F
IG. 9. Loosen jam nut. Unscrew pump.
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).
2. F
IG. 11. Slowly pull engine starter rope until pump
rod pin hole is aligned with hydraulic rod hole. F
IG.8.
F
IG. 8 Push pin (249) into hole. Push retaining spring
(194) into groove.
3. F
IG. 12. Fill packing nut with Graco TSL.
FIG.7
FIG.8
FIG.9
ti13904a
26
34
249
ti13905a
194
ti13906a
CAUTION
If the pump jam nut loosens during operation, the
threads of the hydraulic motor manifold will be dam-
aged. Tighten jam nut as specified.
FIG.10
FIG.11
FIG.12
ti13907a
ti13908a
ti13809a