SEAL 8J4561 - Caterpillar

Illustration 1 g01340704
Typical configuration of mounting bolts for a Caterpillar genset
(1) Mounting bolts for the engine
(2) Mounting bolts for the generator
(3) Levelling bolts for the isolators Misalignment of the engine and the driven equipment will cause extensive damage. Excessive vibration can lead to misalignment. Excessive vibration of the engine and the driven equipment can be caused by the following conditions:
Improper mounting
Misalignment of driven equipment
Loose bolts
Deterioration of the isolatorsEnsure that the mounting bolts are tightened to the proper torque. For standard torques, see Specifications, SENR3130, "Torque Specifications".Ensure that the isolators are free of oil and contamination. Inspect the isolators for deterioration. Ensure that the bolts for adjusting the isolator are correctly adjusted and secured with the locking nut. Correctly adjusted isolators provide even support for the engine base. Each isolator should impose nearly identical force on the base rail. Each isolator should bear the same portion of the weight of the genset.Replace any isolator that shows deterioration. For more information, see the literature that is provided by the OEM of the isolators. Also see the Application and Installation Guide for the engine. Consult your Caterpillar dealer for assistance.