Download 2008 Terex Wheel Loader TL80AS Operating Manual –

Replacing the input shaft bearing on a Terex Wheel Loader TL80AS requires careful planning and execution, as it involves disassembling parts of the drivetrain. click here for more details on the download manual…..

Below is a detailed guide that outlines the tools, components, and steps necessary for the replacement.

### Tools and Equipment Needed:

1. **Tools:**
– Socket wrench set (metric)
– Torque wrench
– Pliers
– Screwdrivers (flat and Phillips)
– Pullers (bearing puller)
– Hammer
– Pry bar
– Snap ring pliers
– Soft-faced mallet
– Oil can or grease gun

2. **Safety Equipment:**
– Safety glasses
– Gloves
– Steel-toed boots
– Hard hat (if working in an area with overhead hazards)

3. **Replacement Parts:**
– New input shaft bearing
– New snap ring (if applicable)
– Gaskets or seals (if needed)
– Lubricant (recommended for bearings)

### Preparation Steps:

1. **Park and Secure the Loader:**
– Park the wheel loader on a flat, stable surface.
– Engage the parking brake and chock the wheels to prevent movement.

2. **Disconnect the Battery:**
– Disconnect the negative terminal of the battery to prevent any electrical accidents.

3. **Gather Documentation:**
– Obtain the service manual for the Terex TL80AS for specific torque values and diagrams.

### Detailed Replacement Steps:

1. **Remove the Engine Cover:**
– Use the appropriate tools to remove any bolts or screws securing the engine cover.
– Lift off the cover and set it aside in a safe location.

2. **Access the Input Shaft:**
– Depending on the design, you may need to remove additional components such as the transmission cover or any side panels to access the input shaft.
– Identify the input shaft and its associated components.

3. **Drain Transmission Fluid:**
– Locate the transmission fluid drain plug and drain the fluid into a suitable container.

4. **Remove the Drive Shaft:**
– Disconnect the drive shaft from the transmission.
– Use a socket wrench to remove the bolts securing the drive shaft to the transmission.
– Carefully slide the drive shaft out of the transmission.

5. **Remove the Input Shaft:**
– Depending on the model, you may need to remove additional components such as the clutch or other related assemblies.
– If there is a snap ring securing the input shaft bearing, use snap ring pliers to remove it.
– Gently tap the input shaft with a soft-faced mallet to release it from its housing.

6. **Remove the Old Bearing:**
– Use a bearing puller to remove the old input shaft bearing from the housing.
– Be careful not to damage the housing during this process.

7. **Inspect Components:**
– Check the input shaft for wear or damage.
– Inspect the bearing housing for any imperfections or scoring.

8. **Install the New Bearing:**
– Before installation, apply a thin layer of lubricant to the new bearing.
– Position the new bearing into the housing and use a soft-faced mallet to gently tap it into place until fully seated.

9. **Reassemble the Input Shaft:**
– If applicable, install the snap ring to secure the bearing.
– Reinsert the input shaft into the housing, ensuring it fits properly.

10. **Reattach the Drive Shaft:**
– Slide the drive shaft back into the transmission.
– Secure it in place by tightening the bolts to the manufacturer’s specified torque.

11. **Replace the Transmission Cover:**
– Reinstall any covers or panels that were removed during disassembly.
– Ensure all bolts are tightened to the correct torque specifications.

12. **Refill Transmission Fluid:**
– Refill the transmission with the appropriate type and amount of fluid as specified in the service manual.

13. **Reconnect the Battery:**
– Reconnect the negative terminal of the battery.

14. **Test the Loader:**
– Start the engine and allow it to idle.
– Test the loader’s functions to ensure everything is operating correctly and listen for any unusual noises.

### Final Checks:

1. **Check for Leaks:**
– Inspect the area around the input shaft bearing for any signs of fluid leaks.

2. **Perform a Final Inspection:**
– Make sure all tools and materials are removed from the work area.
– Conduct a final check of all connections and fasteners.

### Conclusion:

Replacing the input shaft bearing on a Terex Wheel Loader TL80AS is a complex task that requires attention to detail, the right tools, and safety precautions. Following this guide should help ensure a successful replacement. always refer to the service manual for specific instructions and torque specifications related to your particular model.
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