PLATE-CORNER 8E5311 - Caterpillar

Probable Causes
Vibration damper
Engine supports
Driven equipment
Engine misfires, runs rough, or is unstableRecommended Actions
Table 1
Troubleshooting Test Steps Values Results
1. Inspect the Vibration Damper
A. Clean any debris from around the damper. Check the vibration damper for damage.
B. Inspect the mounting bolts for damage and/or for wear. Refer to the Disassembly and Assembly manual.
Vibration damper
Result: The vibration damper is damaged.
Replace the damaged vibration damper or the damaged mounting bolts.
Result: The vibration damper or the mounting bolts are in good repair.
Proceed to Test Step 2.
2. Inspect the Engine Supports
A. Inspect the mounts and the brackets while you run the engine through the speed range. Look for mounts and brackets that are loose and/or broken.
B. Check the alignment of the engine and driven equipment.
Engine supports
Result: The mounts and brackets are loose and/or broken.
Replace the mounts and brackets that are loose and/or broken.
Result: The mounts and brackets are in good repair.
Proceed to Test Step 3.
3. Check the Mounting and Alignment of the Driven Equipment
A. Inspect the mounting hardware for the driven equipment.
B. Inspect the alignment and the balance of the driven equipment.
C. Inspect the drive coupling between the engine and the driven equipment.
Driven equipment
Result: The driven equipment and the alignment are OK.
Proceed to Test Step 4.
Result The driven equipment and the alignment of the driven equipment are NOT OK.
Perform the necessary repairs.
4. Check the Operation of the Engine
A. Refer to Troubleshooting, "Engine Misfires, Runs Rough, or Is Unstable", for more troubleshooting information.
Engine operation
Result The engine is running rough or misfiring.
Perform the necessary repairs.