Use the procedure that follows in order to adjust the depth of the pinion gear. Use the same procedure for both axles.
Introduction
The following procedures describe adjustments to the pinion gear which are necessary when you are assembling the bevel gear set.
| NOTICE |
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The bevel gear and the pinion gear are a matched set. If either part is worn or damaged, both parts must be replaced with a matched set. |
Note: If you are reinstalling the old bevel gear set into the old axle, the thickness of the shim will not need to be changed. The following procedure is necessary when you are replacing the bevel gear set or when you are replacing the center housing.
ReferenceFor further information regarding the removal and the installation of the bevel gear and the pinion gear, refer to Disassembly and Assembly, "Power Train".
ReferenceFor additional information about differential backlash, refer to the Systems Operation, Testing, and Adjusting, "Differential Backlash and Bearings - Adjust".
Parts
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| Illustration 1 | g01427086 |
Rear axle | |
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| Illustration 2 | g01427087 |
Front Axle (1) Cone (bearing) (2) Cup (bearing) (3) Washer (4) Sleeve (5) Washer (6) Cup (bearing) (7) Cone (bearing) (8) Shim (9) Center housing (10) O-ring seal (11) Pinion gear (12) Seal (13) Washer (14) Nut (15) Yoke | |
| Available Shims for Front Axle | |
| Part Number | Shim Thickness |
| 209-7473 | 2.5 mm (0.098 inch) |
| 219-8751 | 2.6 mm (0.102 inch) |
| 219-8752 | 2.7 mm (0.106 inch) |
| 219-8753 | 2.8 mm (0.110 inch) |
| 219-8754 | 2.9 mm (0.114 inch) |
| 219-8755 | 3.0 mm (0.118 inch) |
| 219-8756 | 3.1 mm (0.122 inch) |
| 219-8757 | 3.2 mm (0.126 inch) |
| 219-8758 | 3.3 mm (0.129 inch) |
| 219-8759 | 3.4 mm (0.1339 inch) |
| Available Shims for Rear Axle | |
| Part Number | Shim Thickness |
| 199-0684 | 2.5 mm (0.098 inch) |
| 199-0685 | 2.6 mm (0.102 inch) |
| 199-0686 | 2.7 mm (0.106 inch) |
| 199-0687 | 2.8 mm (0.110 inch) |
| 199-0688 | 2.9 mm (0.114 inch) |
| 199-0689 | 3.0 mm (0.118 inch) |
| 199-0690 | 3.1 mm (0.122 inch) |
| 199-0691 | 3.2 mm (0.126 inch) |
| 199-0692 | 3.3 mm (0.129 inch) |
| 199-0693 | 3.4 mm (0.1339 inch) |
Procedure
| NOTICE |
|---|
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "AVSpare Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on AVSpare products. Dispose of all fluids according to local regulations and mandates. |
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When testing and adjusting the transmission and power train, move the machine to an area clear of obstructions, with safe exhaust ventilation for the exhausts. Sudden movement of the machine or release of oil under pressure can cause injury to persons on or near the machine. To prevent possible injury, do the procedure that follows before testing and adjusting the transmission and power train. |
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- Move the machine to a smooth, horizontal location that is away from operating machines and away from personnel.
- Permit only one operator on the machine. Keep all other personnel away from the machine or in the sight of the operator.
- Move the transmission control to the NEUTRAL position.
- Lower the boom. If equipped, lower the work tool to the ground.
- Engage the parking brake and stop the engine.
- If the machine is in a confined area, ensure that exhaust gases are vented to the outside when the engine is operated.
- Make sure that all the oil pressure is released before you perform any of the following procedures:
- Loosen any fitting, any hose, or any component.
- Tighten any fitting, any hose, or any component.
- Remove any fitting, any hose, or any component.
- Adjust any fitting, any hose, or any component.
- Loosen any fitting, any hose, or any component.
- If, you are installing the old bevel gear set into a new center housing use the original shim as a starting point.
- Do the following if you are installing a new bevel gear set into the old center housing. First record the number that is etched on the old pinion gear. Then record the number that is etched on the new pinion gear. Subtract the number on the old pinion gear from the number on the new pinion gear in order to determine the thickness of the shim.
Example 1
- The number on the old pinion gear is 135.02.
- The number on the new pinion gear is 135.04.
- Install a shim that is 0.02 mm (0.0008 inch) thinner than the old shim.
Example 2
- The number on the old pinion gear is 135.04.
- The number on the new pinion gear is 135.01.
- Install a shim that is 0.03 mm (0.0012 inch) thicker than the old shim.
- The number on the old pinion gear is 135.02.
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| Illustration 3 | g00798772 |
Location of the number on the pinion gear | |
Adjustment Procedure
Refer to Disassembly and Assembly, UENR0265, "450E Backhoe Loaders Power Train ", "Axle Housing (Differential and Bevel Gear) (Front) - Disassemble" for information regarding the removal of the bevel gear and pinion gear for the front axles.
Refer to Disassembly and Assembly, UENR0265, "450E Backhoe Loaders Power Train ", "Axle Housing (Differential and Bevel Gear) (Front) - Assemble" for information regarding the installation and adjustment of the bevel gear and pinion gear for the front axles.
Refer to Disassembly and Assembly, UENR0265, "450E Backhoe Loaders Power Train ", "Axle Housing (Service Brakes, Differential, and Bevel Gear) - Disassemble" for information regarding the removal of the bevel gear and pinion gear for the rear axles.
Refer to Disassembly and Assembly, UENR0265, "450E Backhoe Loaders Power Train ", "Axle Housing (Service Brakes, Differential, and Bevel Gear) - Assemble" for information regarding the installation and adjustment of the bevel gear and pinion gear for the rear axles.