PRODUCT SUPPORT PROGRAM FOR REPLACING THE 335-6437 TUBE AS. AND 348-4854 HOSE AS. ON CERTAIN 777G OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE 335-6437 TUBE AS. AND 348-4854 HOSE AS. ON CERTAIN 777G OFF-HIGHWAY TRUCKS

Usage:

TEBE0341-01

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05Sep2013

(Revised 06Sep2013)

U-398

A-272

D-329

O-332

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE 335-6437 TUBE AS. AND 348-4854 HOSE AS. ON CERTAIN 777G OFF-HIGHWAY TRUCKS
7755 3016 3154		PS44005

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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 "PS44005" 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.

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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.

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NOTE:	This Revised Service Letter replaces the 05Sep2013 Service Letter. Changes have been made to the Affected Product.

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TERMINATION DATE

30Sep2015

PROBLEM

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The existing 335-6437 Tube As. can fail on certain 777G Off-Highway Trucks. The tube assembly can fail resulting from a 341-2694 Plate As. failure in the 309-1346 Powertrain Oil Lines Gp. The tube assembly failure can result in the loss of transmission oil.

AFFECTED PRODUCT

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Model	Identification Number
777G	TNM00101-00648
777G OEM	T4Y00100-00163

PARTS NEEDED

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Qty	Part Number	Description
2	4J0527	SEAL-O-RING
1	5G3845	BOSS
1	6V1867	CLIP
1	6V1868	CLIP
1	6V1869	GROMMET
1	8T4223	WASHER-HARD
1	8T6868	BOLT-HEX HEAD
1	4326161	HOSE AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 15% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.

ACTION REQUIRED

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Refer to the attached Rework Procedure.

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SERVICE CLAIM ALLOWANCES

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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%
0-12000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 3.0-hour job

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PARTS DISPOSITION

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

Rework Procedure

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Refer to the Service Manual if/as necessary.

1. Use the following procedure to replace the 348-4854 Hose As. and 335-6437 Tube As. The new 432-6161 Hose As. replaces both the former 348-4854 Hose As. and the former 335-6437 Tube As. Prepare the machine for maintenance. For the proper procedure, refer to Operation and Maintenance Manual, SEBU8227.

2. Place a suitable container under the machine to contain the fluid. The maximum capacity of the transmission and torque converter is 246 L (65 US gal).

3. Remove plate assembly (A), tube assembly (B) and hose assembly (C) as shown in Image 1.3.1. Save the hardware that connects the former tube assembly to the transmission, and the former hose assembly to the transmission magnetic screen. The other parts will not be reused.

Image1.3.1

4. Install one 4J-0527 O-Ring Seal (1) into both ends of 432-6161 Hose As (2).

5. Use the hardware that was removed in Step 3 to install 432-6161 Hose As (2) to the machine as shown in Image 1.5.1. Tighten the bolts to 105 +/- 20 N.m (77 +/- 15 lb ft) after Step 8 has been completed.

Image1.5.1

6. Install 6V-1869 Grommet (3), 6V-1867 Clip (4) and 6V-1868 Clip (5) on 432-6161 Hose assembly (2) as shown in Image 1.5.1.

7. Install 8T-4223 Washer (6) onto 8T-6868 Bolt (7). Line up the holes in 6V-1867 Clip (4) and 6V-1868 Clip (5). Insert the bolt through the holes and install 5G-3845 Boss (8) onto bolt as shown in Image 1.5.1.

8. Install 8T-6868 Bolt (7) to the weld boss that is on the bottom rear axle housing support assembly as shown in Image 1.5.1. Tighten the bolt to 105 +/- 20 N.m (77 +/- 15 lb ft).