BOLT 8C4984 - Caterpillar

SEBE8677-07 March 1, 2004
(Revised March 2007)
U-58
A-39
D-43
O-45
Safety PRODUCT IMPROVEMENT PROGRAM FOR REMOVINGAIR SHUTOFF SYSTEM FROM CERTAIN 3508B, 3512B, AND 3516B ENGINES
1078 PI10268
This Program must be administered assoon as possible. When reporting the repair, use "PI10268" as the Partnumber and "7751" as the Group Number, "56" as the Warranty Claim DescriptionCode and "T" as the SIMS Description Code. Exception: If the repair isdone after failure, use "PI10268" as the Part Number, "7751" as the GroupNumber, "96" as the Warranty Claim Description Code, and "Z" as the SIMSDescription Code. This Revised Service Letter replacesthe March 1, 2004 (Revised June 2006) Service Letter. Changes have beenmade to the Rework Procdure.PROBLEM
In some instances, the air shutoff valves malfunctionon 3508B, 3512B, and 3516B Engines. Malfunctions include failure to closewhen required or inadvertent valve closure. This Service Letter authorizesthe removal of the air shutoff valves from 3500B series engines and theinstallation of a redundant electronic overspeed protection system. Thenew system satisfies marine society requirements to have a primary andsecondary overspeed shutdown system without the use of an air shutoff. Engines operating in a combustibleenvironment or in accordance with a sanctioning body requiring ASO's shouldnot have the ASO's removed!AFFECTED PRODUCT
Model Identification Number
***Group 1***
3516B 1NW135-137, 141-144
***Group 2***
3512B 5AW81, 82, 123, 124,126, 130, 131BRC147
3516B 1NW116, 117, 120, 121,127-130
***Group 3***
3512B 3ZW123, 130-144, 146-151, 153, 154, 156,157, 160-165, 167, 168, 170, 171, 175-177, 182-186, 193, 194, 197-207,211, 212, 216-219, 229-246, 248, 258, 260, 263, 266-270, 274-287, 290,293-298, 303-307, 310, 314-316, 320-323, 325, 335, 491-494, 503, 538, 549,552, 569, 570, 579, 580, 589, 594, 595, 609, 655, 658, 659, 662, 664, 701,702
***Group 4***
3508B 2HW100, 101, 103-116, 124, 134, 135, 137-140,142-146, 148, 152-156, 160, 161, 169-179, 193, 195-197, 201-205, 216-218,221, 223-2296PN801CBB111, 113-118, 121, 123-127, 129-132, 134,137, 139, 140, 142, 143, 147-164, 168, 170, 171CNB456-459, 4661FZ779
3512B 4AW169, 171, 173, 175, 189, 191, 192, 194-197,199, 200, 202-246, 248-262, 264-268, 270, 272-291, 298-301, 308-310, 315-317,320-323, 326, 327, 329-388, 390-406, 408-411, 413-420, 423-428, 430, 432-437,440, 441, 443-464, 481, 483, 486, 488-495, 497-500, 502-540, 542-546, 548-580,586, 597-602, 605, 609, 610, 612, 614-626, 628-649, 658-665, 668, 671-682,691-693, 696, 704-709, 715, 716, 720-723, 725, 727-730, 758, 769, 776,778, 779, 783, 785, 786, 818PARTS NEEDED
Qty
Part Number Description
***Group 1***
4 6V2605 Stud
2 1112078 Strap
2 1223374 Pipe
2 1277103 Spacer
4 6V5103 Seal
2 8T6764 Plug
4 9S8752 Nut
4 1097411 Seal
4 0T0573 Bolt
1 2348721 Box GP
1 1W8129 Support
1 2361143 Bracket
2 0S1588 Bolt
2 0T0055 Bolt
4 5M2894 Washer
4 5S7349 Bolt
4 8T4205 Washer
20 7K1181 Tie
***Group 2***
4 6V2605 Stud
2 1121567 Strap
2 1223374 Pipe
2 1277103 Spacer
4 6V5103 Seal
2 8T6764 Plug
4 9S8752 Nut
4 1097411 Seal
4 0T0573 Bolt
1 2348721 Box GP
1 1W8129 Support
1 2361143 Bracket
2 0S1588 Bolt
2 0T0055 Bolt
4 5M2894 Washer
4 5S7349 Bolt
4 8T4205 Washer
20 7K1181 Tie
***Group 3***
4 6V2605 Stud
1 6V5048 Seal
1 8S4950 Cap
1 9S4182 Plug
2 1121567 Strap
2 1223374 Pipe
2 1277103 Spacer
4 6V5103 Seal
2 8T6764 Plug
4 9S8752 Nut
4 1097411 Seal
4 0T0573 Bolt
1 2348721 Box GP
1 1W8129 Support
1 2361143 Bracket
2 0S1588 Bolt
2 0T0055 Bolt
4 5M2894 Washer
4 5S7349 Bolt
4 8T4205 Washer
20 7K1181 Tie
***Group 4***
2 1121567 Strap
2 1223374 Pipe
2 1097411 Seal
4 6V5103 Seal
2 8T6764 Plug
1 2348721 Box GP
1 1W8129 Support
1 2361143 Bracket
2 0S1588 Bolt
2 0T0055 Bolt
4 5M2894 Washer
4 5S7349 Bolt
4 8T4205 Washer
2 9S8752 Nut
20 7K1181 TieACTION REQUIRED
See the attached Rework Procedure.OWNER NOTIFICATION
U.S. and Canadian owners will receive the attachedOwner Notification.SERVICE CLAIM ALLOWANCES
Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
100% 4.0 0 0 0 0
This is a 4.0- hour job. U.S. and Canadian Dealers Only - Eligibledealers may enter a Type 2 SIMS ReportPARTS DISPOSITION
Handle the parts in accordance with your WarrantyBulletin on warranty parts handling.MAKE EVERY EFFORT TO COMPLETE THIS PROGRAMAS SOON AS POSSIBLE.Attach. (1-Owner Notification)
(2-Rework Procedure)COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS
XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999SAFETY - PRODUCT IMPROVEMENT PROGRAM FOR REMOVINGAIR SHUTOFF SYSTEMMODELS INVOLVED - CERTAIN 3508B, 3512B, AND3516B ENGINESDear Caterpillar Product Owner:New electronic overspeed protection deviceneeds to be installed on the products listed below. Air shutoff valveson 3500B engines have experienced inadvertent closure or failure to closewhen required. Operating the engine with one air shutoff valve in the closedposition may result in damage to the turbocharger and/or the air cleanercatching fire. All