Tightening Procedure for the Bolt of the Drive Shaft Group Is Now Used on Certain 563D and 573D Wheel Feller Bunchers {3251, 3253} Caterpillar

Wheel Feller Buncher

563D (S/N: D63146-169)

573D (S/N: D73227-241)

Reference: Specifications , SENR3130 , "Torque Specifications"

Description Of Change: Tightening procedure for the bolt of the drive shaft group is now used on the machines listed above. This tightening procedure applies to the end bolts of the driveline where the end bolts connect to the axles, transmission, and park brake even though the remaining bolts would have the same torque.

Adaptable To: The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.

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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.

Tightening Procedure

Use the following procedure in order to tighten the bolt of the drive shaft group:

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Illustration 1	g06326162
Drive shaft group (1) 290-7514 Bolt

1. Check the driveline bolt torque. Use the static torque of 100 N·m (74 lb ft).

2. If 100 N·m (74 lb ft) torque fails, replace the existing bolt with the new one.

3. Tighten the new 290-7514 Bolt (1) to a torque of 120 N·m (89 lb ft) in a criss-cross pattern.

Refer to the media listed above.