Kubota BH90A Assembly Instructions Manual
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Kubota BH90A Assembly Instructions Manual

Kubota BH90A Assembly Instructions Manual

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PRINTED IN U.S.A.
READ AND UNDERSTAND THIS MANUAL
BEFORE ASSEMBLING
Code No. 7K500–7915–5
ASSEMBLY
INSTRUCTIONS
MODEL
BH90A

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Summary of Contents for Kubota BH90A

  • Page 1 ASSEMBLY INSTRUCTIONS MODEL BH90A READ AND UNDERSTAND THIS MANUAL BEFORE ASSEMBLING PRINTED IN U.S.A. Code No. 7K500–7915–5...

  • Page 2: Safety First

    TO THE DEALER This manual contains procedures intended to assist the dealer in unpacking and assembling the product before delivering to the customer. The customer’s purchase is based on confidence in both the product and your store. Observe the procedure in this manual to assemble and adjust equipment for your customer’s safety and satisfaction.
  • Page 3 SAFETY 2. Assembly and adjustments (1) Before assembling equipment, read the assembly To prevent accidents, read through the following items instructions for the product to become familiar before starting work, and always regard safety when with the equipment and procedures. working.
  • Page 4 UNPACKING AND CHECKING PARTS 3. After assembly check (1) Before operating or test driving the equipment, BUNPACKING WOODEN CRATE read and understand the operator's manual. (2) Once the equipment is fully assembled, select a 1. Cutting metal bands (if two are banded together). safe place for a test run.
  • Page 5 BCHECKING PARTS Remove all backhoe components. Referring to the illustration, insure that all components have been included. Backhoe bucket Dipperstick (arm) assy Main frame-Boom assy Pin (1.25 in. x 8.82 in.) Bolt (M10 x 80) Locking Nut (M10) Pin (1.5 in. x 10.2 in.) Spacer Bolt (M10 x 80) (10) Locking Nut (M10)
  • Page 6 (1) Front bracket LH (1) Front bracket (2) Front bracket RH (2) Rear bracket LH (3) Rear bracket LH (3) Rear bracket RH (4) Rear bracket RH (4) Frame support (5) Frame support (1) Front bracket (A) 224 mm (8.82 in.) (1) Front bracket LH (A) 224 mm (8.82 in.) (2) Rear bracket...
  • Page 7 (1) Front bracket LH (1) Front bracket (2) Front bracket RH (2) Rear bracket LH (3) Rear bracket (3) Rear bracket RH (4) Frame support (4) Frame support (5) Sub bracket RH (5) Sub frame RH (6) Sub bracket LH (6) Sub frame LH (7) Connecting plate RH (7) Connecting plate RH...

  • Page 8: Operation

    Loader and applicable backhoe mount kit only. A MX5100 tractors with foldable ROPS, LA844 Loader and applicable backhoe mount kit only. 2. The BH90A backhoe can not be mounted on a tractor together with mid mount mower. 3. When using other implements with backhoe removed, mount the 3-point linkage to the tractor.
  • Page 9 3. Connect the backhoe outlet hose to the power beyond 2. Loosen the power beyond port adapter lock nut and port (c) of the hydraulic block. turn the adapter away from the tractor 5 degrees. Connect the backhoe inlet hose to the power beyond port (c) adapter.
  • Page 10 4. Clamp the two hoses to the pipe using a plastic band. (The clamping position differs between the GST and BSub Frame HST types.) Detach the front loader sub frame. A Hoses pre-installed on the control valve assembly are not securely tightened to ease installation of hoses to hydraulic block.
  • Page 11 (1) Rear bracket (1) Sub frame (2) 2 - M16 x 55 bolts [L3130, L3430] (2) 3 - M16 x 55 bolts 4 - 5/8 hardened plain washers 6 - 5/8 hardened plain washers 2 - M16 spring lock washers 3 - M16 spring lock washers 2 - M16 nuts 3 - M16 nuts...
  • Page 12 3. Using the bolts and nuts, temporarily fix the following components to the sub frame: ROPS frame, rear bracket, frame support and connecting plate. (1) Rear bracket (2) Frame support (3) Connecting plate (4) ROPS Frame (5) 2 - M16 x 140 bolts 4 - 5/8 hardened plain washers 2 - M16 spring lock washers 2 - M16 nuts...
  • Page 13 4. Temporarily fix the front bracket using the bolts and 7. Install the tool box. Apply the label. nuts. 5. First, tighten up the two bolts at the front loader's main frame to the specified torque. (1) NO STEP label (2) Tool box stay (3) 2-M10 x 35 bolts (1) Front bracket...
  • Page 14 9. Connect the male coupler to the inlet hose. Connect the coupler joint and female coupler to the inlet hose. Fix the coupler joint to the connecting plate (RH). Connect the male coupler to the female coupler. A Take this step after mounting the connection plate (RH) in position.
  • Page 15 ASSEMBLY 2. Connect the backhoe inlet tube to the power beyond port of the loader valve and the backhoe inlet hose to BLayout of BH90A Backhoe Hydraulic the backhoe inlet tube and coupler joint. Lines (1) Power beyond port (1) Front loader valve...
  • Page 16 4. Clamp the hose to stay using a plastic band. BSub Frame 1. Detach the front loader sub frame. A Hoses pre-installed on the control valve assembly are not securely tightened to ease installation of hoses to hydraulic block. Be sure to securely tighten all hose fittings after installing.
  • Page 17 3. On the L3240 and L3540, remove the collar first and 4. Lift the back end of the sub frame using a hoist and then attach the rear bracket. jack up the front of the sub frame. Temporarily tighten the bolts and nuts in place. (1) Collar (1) Nylon strap (2) Jack...
  • Page 18 5. Using the bolts and nuts, temporarily fix the following components to the sub frame: ROPS frame, rear bracket, frame support and connecting plate. (1) Rear bracket (2) Frame support (3) Connecting plate (4) ROPS Frame (5) 2 - M16 x 135 bolts 4 - 5/8 hardened plain washers 2 - M16 spring lock washers 2 - M16 nuts...
  • Page 19 SETTING UP DIPPERSTICK AND BUCKET 6. Connect the male coupler to the inlet hose. Connect the coupler joint and female coupler to the inlet hose. 1. Install dipperstick assy to the boom using pins, Fix the coupler joint to the connecting plate (RH). spacers, bolts, nuts.
  • Page 20 INSTALLING THE BACKHOE 6. Restart the engine. To avoid personal injury or death: To avoid personal injury or death: A When starting the engine, always sit in the A Do not move the joystick control lever to the operator's seat. swing position.
  • Page 21 9. Lower the mount bar onto the support hooks by [BH4998] operating the stabilizer and boom control levers. Place the seat-spacer under the operator's seat then 10. Move the boom slowly to the lowering position, and reinstall them as shown below. engage the guide plates of the main frame to the bosses of sub frame.
  • Page 22 REMOVING THE BACKHOE 2. Stand beside the rear tire, fully close the dipperstick, curl the bucket and lower the boom until the back of BRemoval of The Backhoe bucket contacts the ground. 3. Keep the stabilizer pads at about 380 mm (15 inches) high.
  • Page 23 6. Raise the backhoe by operating the stabilizers in the 9. Shut off the engine and set the parking brake. lowering direction until the mount bars hit the guide 10. Slowly release all hydraulic pressure by moving the stopper on the support hooks. backhoe hydraulic control levers in all directions.

  • Page 24: Pre-Operation Check

    PRE-OPERATION CHECK BStorage of The Backhoe BLubrication 1. Store the backhoe in a dry place. Lubricate all grease fittings with SAE multipurpose 2. Apply a coat of grease to all exposed cylinder rods to grease. prevent rusting. 3. If the backhoe is being stored outside, cover the backhoe with a suitable weather cover.

  • Page 25: Assembly Time

    ASSEMBLY TIME BTransmission Fluid Refer to the following table for the assembly time to open Check tractor transmission fluid level. Add fluid if the crate and assemble the tractor. necessary. Refer to the tractor operator's manual for Assembly times on the table are just for reference under instructions and proper fluid.
  • Page 26 TIGHTENING TORQUE OF BOLTS AND NUTS BGeneral Torque Specification American standard screws, bolts and nuts with UNC or UNF Metric cap screws threads SAE grade No. SAE GR.5 SAE GR.8 property class 8.8 Approx. SAE GR 5 (N-m) 11.7 to 15.8 16.3 to 19.8 (N-m) 9.8 to 11.2...

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