Hitachi GH 300 important safety instructions Displacement Pump, Figures

Page 17

Displacement Pump

Displacement Pump

GH130 Only

(Figures 7-12)

See manual 311845 for pump repair instructions

Removal

1.Flush pump.

2.Relieve pressure, page 7.

Installation

If pin (92) works loose, parts could break off and project through the air, resulting in serious injury or property dam- age. Make sure pin is properly installed.

3.(Fig. 7) Remove suction tube (114) and paint hose (63) (remove at swivel end).

63

114

ti2272a

FIG. 7

4. (Fig. 8) Push retaining ring (120) up; push out pin (92).

CAUTION

If the pump jam nut (86) loosens during operation, the threads of the bearing housing and drive train will be dam- aged. Tighten jam nut (86) as specified.

1.(Fig 10) Screw jam nut (86) to bottom of pump (111) threads. Screw pump (111) completely into manifold. Unscrew pump (111) from manifold until pump outlet aligns with hose. Hand tighten jam nut (86), then tap 1/8 to 1/4 turn with hammer or torque to 75 ft-lb (101 N·m).

86

111

92

120

FIG. 10

ti2272d

FIG. 8

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 ring (120) into groove.

TIB

5.(Fig. 9). Loosen jam nut (86). Unscrew pump (111).

86

120

92

FIG. 11

TIE

 

3. (Fig. 12) Fill packing nut with Graco TSL.

ti2272c

FIG. 9

ti2272f

FIG. 12

311797F

17

Image 17
Contents GH 130, GH GH 230, GH Hydraulic Sprayers Electric Motor Kit Options ModelsSkin Injection Hazard Fire and Explosion HazardPressurized Equipment Hazard Electric Shock HazardEquipment Misuse Hazard Moving Parts HazardPressurized Aluminum Parts Hazard Suction HazardItem No Component Component IdentificationGrounding SAE O-Ring InstallationGeneral Repair Information Pressure Relief Procedure MaintenanceAfter the First 20 Hours of Operation After Each 100 Hours of Operation SEMI-ANNUALLYProblem Cause Solution Troubleshooting311797F Removal InstallationHydraulic Pump 227 Fan Belt Engine Flying Parts Hazard RemovalInstallationHydraulic Motor Rebuild 263 Hydraulic Oil/Filter Change Figures Displacement Pump190 FIG Displacement Pump ProConnectSupport pump with your hand before opening t-handle Install pin 311797F All Sprayers PartsParts List All Sprayers Parts Drawing Engines PULLEY, GH300 WASHER, GH300SPACER, GH300 SHIELD, GH300Parts Drawing All Sprayers BELT, GH300 PlugRing LABEL, GH130Parts Drawing All Sprayers GH200/230/300 Strainer CouplerFITTING, QD 267 MANIFOLD, GH200 Parts ListMANIFOLD, GH130 GH 230 & 300 Sprayers with Spray Gun and Hoses GH 130 & 200 Sprayers with Spray Gun and HosesSound Levels Technical DataDimensions For Graco Canada Customers Graco Standard Warranty