User's Manual

Displacement Pump

311021U 23

Displacement Pump

See manual 309277 for pump repair instructions

Removal

1 Flush pump.

2 Relieve pressure; page 7.

3 Fig. 11. Remove suction tube (34) and hose (26).

4 Fig. 12. Push magnet ring (222) up. Push retaining

spring (194) up. Push out pin (249).

5Fig. 13. Loosen jam nut. Unscrew pump.

Installation

1 Fig. 14. 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 Fig. 15. Slowly pull engine starter rope until pump

rod pin hole is aligned with hydraulic rod hole. Fig.

12. Push pin (249) into hole. Push magnet ring

(222) down. Push retaining spring (194) into groove.

3 Fill packing nut with Graco TSL.

NOTICE

Gallon counter may error if magnet ring and/or sensor

assembly are damaged during disassembly and

assembly.

NOTICE

If the pump jam nut loosens during operation, the

threads of the hydraulic motor manifold will be

damaged. Tighten jam nut as specified.

ti6514a

Fig. 11

ti6515a

249

194

222

Fig. 12

ti6516a

Fig. 13

ti651

Fig. 14

ti6518a

222

Fig. 15

ti6519a

Fig. 16