Bush Hog 665H, 965H, 865H, 765H manual Assembly of a Bush HOG Backhoe to a Bush HOG Loader Valve

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ASSEMBLY OF A BUSH HOG BACKHOE TO A BUSH HOG LOADER VALVE

IMPORTANT: Improper hydraulic hook-up can cause serious damage to backhoe control valve or other hydraulic components. Refer to the Bush Hog loader Operator’s Manual during this procedure.

When connecting the Bush Hog backhoe valve to a Bush Hog front end loader valve, the input pressure line from the tractor will be connected to the loader valve first. The power beyond pressure line will be connected to the input pressure port of the backhoe valve. In order to properly plumb the system, the loader valve will require converting to a power beyond valve. Refer to the Operator’s Manual received with the loader for the proper assembly of the power beyond valve.

There have been several different valves used on the loader in past years. The fittings required to con- vert the Bush Hog loader valve to a power beyond application are included in the loader valve kit. If the fittings (or plugs) cannot be located, they can be

obtained from Bush Hog Service Parts. Before attempting to order the plug you must first determine the manufacturer of the loader valve assembled to your loader. This can be determined from the identifi- cation plate located on the valve.

1.Install the power beyond plug received with the loader valve into valve cavity as shown in Figure 23 (Page 32). Make sure O-rings on sleeve are posi- tioned properly and are not pinched or damaged.

2.Install a pressure line (supplied by customer) between the tractor pressure “out” port and the pres- sure inlet port of the loader valve.

3.Install a pressure line (supplied by customer) between the power beyond fitting of the loader valve and the pressure inlet port of the backhoe valve as shown in Figure 23.

4.Complete assembly of “return” hoses as shown in Figure 23. Connect return hoses from both valves to tee as shown. Hoses and tee supplied by customer. Connect the return line directly to a port on the tractor reservoir as shown in Figure 23.

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Contents Bush HOG Congratulations Backhoes Disclaimer of Implied Warranties & Consequential Damages This Limited Warranty Shall not Apply665H 765H 865H 965H Backhoes Dealer Preparation Check ListBackhoe TractorAdjustments and Inspection TransportationAvoid HIGH-PRESSURE Fluids Safety Decals This Act Seeks Employee Tractor Operating InstructionsOsha Regulations Child Labor Under 16 Years OldKeep bystanders a safe distance away Engine SpeedControls Page Transporting the Backhoe Placing the Stabilizers When TransportingDumping the Bucket Filling the BucketMiscellaneous Side Slope Excavating or TrenchingFinishing Straight Walls BackfillingBleeding Backhoe Hydraulic System Beginning of SeasonHydraulic System Hoses Hydraulic System ReservoirTooth Replacement Tightening Nuts and BoltsLubrication Removal from Tractor Storage Install the swing safety lock pin as shown in Figures 1Stabilizer Pads 765H, 865H and 965H Hydraulic Trouble ShootingCauses and Corrections Replacing Spool Seals Replace Center Section AssembliesAssembly Cient capacity and is in the proper position. Do Be sure hoist Used is suitable, has suffiDo not cut any strapping that fastens the back Hoe mainframe and swing frame to the skid atAssembly Refer to Figures 13 General Description Attaching KIT Instructions For 865HAssembly Hydraulic Hook-Up Closed Center System 665H &765H Hydraulic Hook-Up 865H & 965H Hook-Up DiagramHook-Up Requirements Backhoe OperationAttaching KIT Instructions For 965H Assembly Refer to For Tractors with OPEN-CENTER Hydraulic Systems Tractor PreparationBackhoe Preparation Assembly of a Bush HOG Backhoe to a Bush HOG Loader Valve Bush HOG Backhoe & Bush HOG Loader Valve Assembly Outlet 10 .5 GPM PTO Pump KIT AssemblyOr 8 GPM PTO Pump KIT 11 .5 GPM PTO Pump KITPump Plate Positions GPM Pump KITSeries Models 665H and 765H Models 865H Shown 965H Page Bush HOG, L.L.C
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