PRODUCT SUPPORT PROGRAM FOR CHECKING THE 6V-8336 BRAKE ANCHOR BOLT TORQUE ON CERTAIN 735 AND 740 ARTICULATED TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR CHECKING THE 6V-8336 BRAKE ANCHOR BOLT TORQUE ON CERTAIN 735 AND 740 ARTICULATED TRUCKS

Usage:

REBE4353-02

Show/hide table

15Sep2008

(Revised 12Aug2010)

U-477

A-389

D-398

O-436

Show/hide table

*Before/After*	PRODUCT SUPPORT PROGRAM FOR CHECKING THE 6V-8336 BRAKE ANCHOR BOLT TORQUE ON CERTAIN 735 AND 740 ARTICULATED TRUCKS
4008 4251		PS42786

Show/hide table

NOTE:

This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS42786" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

Show/hide table

NOTE:

The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.

Show/hide table


NOTE:	This Revised Service Letter replaces the 15Sep2008 (Revised 24Sep2008) Service Letter. Changes have been made to the Termination Date and Affected Product.

Show/hide table

TERMINATION DATE

30Sep2011

PROBLEM

Show/hide table

A population of 735 and 740 Articulated Trucks could contain loose brake anchor bolts. If the brake anchor bolts are loose, there may be a leak. Tightening the bolts to the proper torque will solve the current problem.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
735	B1N00840-01366
740	B1P02240-05566
740 OEM	DTX00104-00253
740EJ	B1R00309-00522

PARTS NEEDED

Show/hide table

No parts needed for this program

ACTION REQUIRED

Show/hide table

Tighten the 6V-8336 Brake Anchor Bolts to a torque of 100 +/- 20 Nm (75 +/- 15 ft-lbs). The brake anchor bolts are part of the 217-6309 Brake Group. (Refer to Image 1 below.)

Refer to the attached Rework Procedure on how to remove the guards on the front and center axle.

Show/hide table

Image1

SERVICE CLAIM ALLOWANCES

Show/hide table

Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-2000 hrs, 0-30 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

Show/hide table

NOTE: This is a 3.0-hour job

Show/hide table

PARTS DISPOSITION

Show/hide table

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

Rework Procedure

Show/hide table

1) Remove the guards on the front and center axle. Clean the dirt and debris from the brake anchor bolts. (Refer to Image 1.1.1)

2) Mark the start position when carrying out this procedure. Set the torque wrench to the static torque specification of 80 Nm. Check each bolt, if any bolt moves while performing this check then torque each bolt to 100 +/- 20 Nm. (Refer to Image 1 above in the Action Required)

3) Reinstall the brake guards.