Bush Hog 765H, 965H, 665H, 865H manual Assembly

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ASSEMBLY:

BUSH HOG BACKHOE AND A NON BUSH HOG LOADER - OR - BUSH HOG BACKHOE AND LOADER USING PTO PUMP KIT OPTION

IMPORTANT: Improper hydraulic hook-up can cause serious damage to backhoe control valve or other hydraulic components.

The following instructions are to be used to connect the backhoe valve in line with a front end loader valve that is not a Bush Hog loader valve. When connecting the Bush Hog backhoe valve to a loader valve other than one obtained from Bush Hog, the input pressure line from the tractor will be connected to the backhoe valve first. In order to properly plumb the system, the back- hoe valve will require converting to a power beyond valve. The power beyond pressue line from the back- hoe valve will be connected to the input pressure port of the loader valve. The power beyond kit for the back- hoe being assembled must be ordered as a separate item from Bush Hog.

Assembly

IMPORTANT: Improper hydraulic hook-up can cause serious damage to backhoe control valve or other hydraulic components.

1.Install power beyond sleeve (1) into valve cavity, as shown in Figure 24 (Page 33), making sure that O-rings and back-up ring on sleeve are positioned properly and are not pinched or damaged.

2.665H and 765H - Assemble 90 degree O-ring adapter union (2) to power beyond sleeve (1) and direct fitting down through notch in Right Hand foot pad.

865H & 965H - Assemble straight O-ring adapter union (3) to power beyond sleeve (1). Install 90 degree pipe threaded adapter union (2) into adapter union (3).

3.Assemble hydraulic hose (supplied by customer) to adapter union (2) as shown in Figure 24. Hose should have same pressure rating as original pres- sure hose to loader or other accessory valve.

4.Install hose sleeve (4) onto hose assembled in step 3. Position hose sleeve to completely cover adapter union (2) and secure with plastic tie (8) as shown in Figure 24.

CAUTION

Hose sleeve (4) is installed to help protect the backhoe operator from escaping fluid under pressure. If it becomes damaged or lost, replace hose sleeve (4) and plastic ties (8) immediately.

5.Assemble hydraulic hose (see step 3) from back- hoe power beyond port to loader or accessory valve inlet port using fittings (supplied by customer) as needed. Refer to Figure 24.

6.Complete assembly of backhoe “pressure” and “return” hoses as shown in Figure 24 using hoses and tee fitting (supplied by customer).

7.Complete assembly of loader “return” hose to tee fitting as shown.

8.Replace shroud using hardware removed in step

1of “Backhoe Preparation” section.

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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 TractorAvoid HIGH-PRESSURE Fluids Adjustments and InspectionTransportation Safety Decals Child Labor Under 16 Years Old Employee Tractor Operating InstructionsThis Act Seeks Osha RegulationsControls Keep bystanders a safe distance awayEngine Speed Page Transporting the Backhoe Placing the Stabilizers When TransportingDumping the Bucket Filling the BucketBackfilling Side Slope Excavating or TrenchingMiscellaneous Finishing Straight WallsHydraulic System Reservoir Beginning of SeasonBleeding Backhoe Hydraulic System Hydraulic System HosesLubrication Tooth ReplacementTightening Nuts and Bolts 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 Hoe mainframe and swing frame to the skid at Be sure hoist Used is suitable, has suffiCient capacity and is in the proper position. Do Do not cut any strapping that fastens the backAssembly Refer to Figures 13 General Description Attaching KIT Instructions For 865HAssembly Hydraulic Hook-Up Closed Center System 665H &765H Backhoe Operation Hook-Up DiagramHydraulic Hook-Up 865H & 965H Hook-Up RequirementsAttaching KIT Instructions For 965H Assembly Refer to Backhoe Preparation For Tractors with OPEN-CENTER Hydraulic SystemsTractor Preparation Assembly of a Bush HOG Backhoe to a Bush HOG Loader Valve Bush HOG Backhoe & Bush HOG Loader Valve Assembly Outlet 11 .5 GPM PTO Pump KIT Assembly10 .5 GPM PTO Pump KIT Or 8 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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