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Here’s a step-by-step guide on how to replace suspension bushings on a Komatsu D355A-1 Bulldozer, presented in reverse order:

### Step 10: Reassemble Components
– **Reattach any removed components**: If you removed any covers, plates, or other components to access the suspension bushings, reattach them securely.
– **Tighten fasteners**: Ensure that all bolts and nuts are tightened to the manufacturer’s specified torque settings.

### Step 9: Reinstall the Bulldozer
– **Lower the bulldozer**: If the machine was raised, carefully lower it back to the ground.
– **Remove any lifting equipment**: If you used jacks or hoists, remove them safely.

### Step 8: Check Alignment
– **Ensure proper alignment**: Before fully tightening, check that the suspension components are aligned properly to prevent undue stress on the bushings.

### Step 7: Install New Bushings
– **Press in new bushings**: Using a suitable press or tool, install the new suspension bushings into the suspension arms or frames.
– **Ensure proper orientation**: Make sure the bushings are oriented correctly according to the manufacturer’s specifications.

### Step 6: Remove Old Bushings
– **Extract old bushings**: If they are pressed in, use a bushing removal tool or press to remove the old bushings from the suspension components.
– **Clean the area**: Clean the areas where the bushings were installed to remove any debris or old lubricant.

### Step 5: lift the Bulldozer
– **Raise the bulldozer**: Use a hydraulic jack or lift to safely raise the bulldozer off the ground, providing access to the suspension components.

### Step 4: Prepare Tools and Parts
– **Gather necessary tools**: Ensure you have all tools ready, including wrenches, sockets, a bushing press, and any special tools required.
– **Obtain replacement bushings**: Make sure the new suspension bushings are the correct type and size for the Komatsu D355A-1.

### Step 3: Safety Precautions
– **Ensure safety**: Before starting, make sure the bulldozer is on a flat surface, the parking brake is engaged, and that you are wearing appropriate personal protective equipment (PPE).

### Step 2: Consult the Manual
– **Refer to the service manual**: Check the Komatsu D355A-1 service manual for any specific instructions or torque specifications related to the suspension bushings.

### Step 1: Assess the Situation
– **Diagnose the need for replacement**: Inspect the suspension bushings for wear, damage, or play. Determine if replacement is necessary based on your assessment.

By following these steps in reverse order, you can effectively replace suspension bushings on a Komatsu D355A-1 Bulldozer. Always refer to the manufacturer’s guidelines and ensure safety throughout the process.
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