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Graco Inc 253471 Pump Power Head Replacement, Relieve pressure, page, Removal, Installation

Models: 253472

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Pump Power Head Replacement

Removal

1.Relieve pressure, page 5.

2.Remove hydraulic lines (100, 101) from head (75).

4. Remove power head from unit.

100

101

75	ti7847

Installation

1. Install power head on unit.

ti7803

3.Loosen (4) mounting bolts (7) on the adapter enough to lift and remove assembly.

ti7851

ti7841

311283D

Page 12

Image 12

Graco Inc 253471 Pump Power Head Replacement, Relieve pressure, page, Removal, Installation, 311283D, ti7847, ti7803

Contents

Repair Related ManualsKorean patent 4000 psi 27.6 MPa, 275.8 bar Maximum Working PressureFIRE AND EXPLOSION HAZARD SKIN INJECTION HAZARDPRESSURIZED EQUIPMENT HAZARD RECOIL HAZARDEQUIPMENT MISUSE HAZARD MOVING PARTS HAZARDPRESSURIZED ALUMINUM PARTS HAZARD SUCTION HAZARDComponent Identification Component Identification311283D ti7133Pressure Relief Procedure OperationGeneral Repair Information GroundingMaintenance ProcedureSpark Plug FrequencyPROBLEM SOLUTIONCAUSE TroubleshootingPROBLEM SOLUTIONCAUSE Displacement Pump Replacement Removal2. Relieve pressure, page Displacement Pump ReplacementInstallation ti77797. Install clip pin 121 to secure 8. Install filter housing 110, page 110Displacement Pump Replacement 121 125Pump Power Head Replacement 1. Relieve pressure, pageInstallation Pump Power Head ReplacementPump Power Head Replacement 101 100311283D ti7853Hydraulic Motor 1 450 in-lb 51 N.m 2 600 in-lb 68 N.m 3 60 in-lb 7 N.m4 930 in-lb 105 N.m Torqued in 3 steps Hydraulic MotorFilter Housing Replacement InstallationFilter Housing Replacement RemovalHydraulic Pump Replacement 2. Drain oil, Changing Hydraulic Oil procedure, pageChanging Hydraulic Oil Draining OilHydraulic Pump Replacement 311283Dti7796 ti7795Installation 11. Remove hydraulic pumpti7810 ti7767ti7889 ti7812 ti7111bBelt Removal and Replacement recommended method Installing BeltRemoving Belt Alternate Belt Removal and Installation Installing BeltRemoving Belt Replacing Oil Reservoir Removal1. Relieve pressure, page Installation Hydraulic Pump Replacement311283D ti7791Hydraulic Pump Replacement 311283Dti7781 ti7766Hydraulic Pump Replacement Drain Plug 8. Replace cap311283D ti7784Changing Hydraulic Fluid Filter InstallationRemoval 1. Relieve pressure, pageCooler Replacement Cooler ReplacementRemoval 1. Relieve pressure, pageInstallation 4. Replace bar and screws. Torque to 25-30 in-lb 2.8-3.4 N.mMotor Replacement InstallationReplacing Motor Fan RemovalMotor Replacement 311283Dti7797 Removing Handle Fixed Mounting optionalRepositioning Handle Securing Unit to Vehicle Bed Technical Data DimensionsSprayer Sound LevelsWarranty mm This manual contains EnglishWarranty Graco reserves the right to make changes at any time without notice