MOTOR GP-PISTON 3417632 - Caterpillar

TERMINATION DATE
31May2016
PROBLEM
The 333-3624 Block, 296-7803 Plate, and 8X-5948 Block need to be inspected and reworked on certain 777G Off-Highway Trucks. The existing 333-3624 Block (A), 296-7803 Plate (B), and 8X-5948 Block (C) may experience fatigue cracking. The 333-3624 Block is used to assemble the 318-1038 Control Valve Gp (tow valve) part of 309-1352 Brake Control Gp. The 296-7803 Plate is used to assemble a series of hydraulic hoses.
The 8X-5948 Block is used to assemble the 347-5483 Plate As. part of 336-0260 Sound Suppression Ar and the 371-8278 Plate As. part of 373-1097 Mud Enclosure Gp.
AFFECTED PRODUCT
Model Identification Number
777G TNM00152, 324, 326-327, 337, 438-440, 487, 492, 535, 540, 552, 580, 612, 617, 624, 629, 632, 713-716, 751, 753
PARTS NEEDED
Qty
Part Number Description
1 PLATE_001 DEALER FABRICATED IF REQUIRED
1 PLATE_002 DEALER FABRICATED IF REQUIRED
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 22% 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
Refer to the Service Manual if/as necessary and see Special Instruction REHS9326 "Procedure to Inspect and Repair the Main Rail Assembly and the Rear Pedestal Assembly on Certain 777G Off-Highway Trucks" for rework procedure. Failure to adhere to rework procedure may result in cracks reoccurring.
Image 1 reflects the current product.
1. All affected units are required to remove and reweld the 333-3624 Block (A). PLATE_001 is required if 333-3624 Block can not be reused.
2. All affected units are required to remove and reweld the 296-7803 Plate (B). PLATE_002 is required if 296-7803 Plate can not be reused.
3. All affected units are required to remove the 8X-5948 Block (C). Note: If a crack is discovered in or around the areas of block (A), plate (B), or block (C) please submit a SIMS entry immediately with pictures, or e-mail pictures to obrien_todd.
Please include the serial number and hours of the affected unit.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-18000 hrs,
0-36 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 21.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.