PRODUCT SUPPORT PROGRAM FOR POSSIBLY REPLACING THE NOX SENSOR HARNESS BRACKET ON CERTAIN G3512 AND G3516 NSPS ENGINES
Usage:
REBE5854-00
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16Aug2010 |
U-325
A-255
D-279
O-283
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Before/After | PRODUCT SUPPORT PROGRAM FOR POSSIBLY REPLACING THE NOX SENSOR HARNESS BRACKET ON CERTAIN G3512 AND G3516 NSPS ENGINES |
|
1408 1900 | PS43143 |
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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 "PS43143" 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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TERMINATION DATE |
31Aug2011 |
PROBLEM
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The existing NOx Sensor Harness Bracket does not provide sufficient support, which may result in NOx sensor failure due to vibration on certain G3512 and G3516 NSPS engines. |
AFFECTED PRODUCT
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Model | Identification Number |
G3512 | WPP01500-01532 WPR01500-01524 |
G3516 | WPT01500-01529 WPW01500-01977 |
PARTS NEEDED
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Qty |
Part Number | Description |
1 | 0S1594 | BOLT |
2 | 5M2894 | WASHER-HARD |
1 | 9S8752 | NUT-FULL |
3 | 9X6772 | STRAP-CABLE |
1 | 3044209 | SENSOR GP-NOX (After Failure Only) |
1 | 3179109 | SHIELD |
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 32% 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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Inspect the NOx sensor bracket to confirm it has not been updated to the integrated bracket and harness support. - If the bracket has already been updated, no further action is necessary. - If the original bracket has not been updated, replace the bracket with the updated bracket. The original bracket design needs to be replaced with the new and improved integrated bracket. NOTE: This program does not cover multiple bracket replacements on the same unit, or the replacement of the NOx sensor for bracket updates performed before sensor failure. |
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SERVICE CLAIM ALLOWANCES
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0-60 mo |
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NOTE: This is a 1.0-hour job | ||||||
Cost of the NOx sensor will not be reimbursed if this program is performed before sensor failure. |
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PARTS DISPOSITION
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Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
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1. Shut the engine down and allow to cool. Remove all power to the engine following local lock out tag out procedures. Remove the cable straps holding the NOx sensor harness to the existing bracket (2). Refer to Image1.1.1. Remove the 307-7362 Shield(1) and the 308-3825 Bracket (2). Retain the mounting hardware and ladder clip for later use, the shield and bracket will not be reused. |
Image1.1.1 |
2. Refer to Image1.2.1. Install the integrated 317-9109 Shield (1) with the mounting hardware removed in the previous step. Tighten the mounting hardware to a torque of 47 +/- 9 Nm (34 +/- 6 lb ft). 3. Install the ladder clip (2) removed in Step 1 to the shield as shown in Image1.2.1 with 0S-1594 Bolt, 5M-2894 Washers, and 9S-8752 Nut. Tighten to a torque of 25 +/- 6 Nm (18 +/- 4 lb ft). Route and secure the NOx sensor harness with 9X-6772 Cable straps as shown. Refer to REHS3411 for recommended NOx sensor harness slack or NOx sensor replacement. |
Image1.2.1 |
3. Remove all lock out tag out procedures where used. |
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