PANEL A 5C0973 - Caterpillar

Illustration 2 g06317433
Typical example
(A) Bolt
(B) Washer
(C) Chamfer
Inspect all 18 bolts ( 8T-4956 Bolt and 379-2602 Washer) and that secure the swing bearing to the undercarriage frame. If there is any gap between the bolt/washer and the bearing, remove the bolt and replace. Replace any missing bolts or bolts with damaged threads. Refer to Illustration 1.Note: When replacing the 379-2602 Washer, ensure that the chamfer of the washer is oriented toward the bolt head. Refer to Illustration 2.
Gently tighten one bolt on each side of the bearing until there is no gap between the washer and the frame. Then gently tighten one bolt on the front and one in the rear of the machine. Gently tighten the rest of the bolts in the same diagonal pattern to ensure an even gear mesh.
Use the same tightening pattern in Step 2 to torque each bolt to 110 N m (81 lb ft).Note: Place a paint mark on each subsequent bolt after applying the final torque to ensure