ACCUMULATOR GP-HYDRAULIC 6E3450 - Caterpillar

SEBE8450 July 29, 2003
U-197
A-138
beforeor
after failure PRODUCT SUPPORT PROGRAM FOR REWORKINGCERTAIN 3412C SOUND ATTENUATED ENCLOSURE GENSET PACKAGES
0025 PS41392
This Program can be administered eitherbefore or after failure. In either case the decision whether to apply theProgram is made by the dealer. When reporting the repair, use "PS41392"as the Part number and "7755" as the Group Number. If administered beforefailure, use "56" as the Warranty Claim Description Code and use "T" asthe SIMS Description Code. If administered after failure, use "96" as theWarranty Claim Description Code and use "Z" as the SIMS Description Code. The information supplied in this serviceletter may not be valid after the termination date of this program. Donot perform the work outlined in this Service Letter after the terminationdate without first contacting your Caterpillar product analyst.TERMINATION DATE
July 31, 2004PROBLEM
Some 3412C, 800 kW standby rated, sound attenuatedenclosure packages may overheat when operated in high ambient temperatureconditions.AFFECTED PRODUCT
Model Identification Number
3412C 9EP179, 221, 222, 254,258, 322, 323, 326, 327, 332, 334, 335, 373, 435, 474, 496, 498, 516, 529,544, 591, 602, 624, 632, 652, 677, 723, 745, 785, 786, 801, 804, 870, 1046,1071, 1085, 1116, 1372, 1384, 1414, 1463, 1505, 1584, 1588-1591, 1595,1601, 1615, 1619, 1621, 1623, 1626, 1631, 1637, 1640-1642, 1644, 1646,1649-1651, 1654, 1694, 1741, 1814, 1929, 1946, 2004, 2026, 2061, 2081,2082BCW158, 186, 200, 201, 242, 243, 247, 248, 263, 284, 286, 361, 362, 383,402, 408, 412, 433, 451, 458, 459, 466, 467, 484, 528, 568, 587PARTS NEEDED
Qty
Part Number Description
1 7C4911 ADAPTER-FANACTION REQUIRED
See the attached Rework Procedure.SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs Parts Labor Hrs Parts Labor Hrs
0-60 mos 100% 3.0 0 0 0 0
This is a 3.0?hr job.PARTS DISPOSITION
Handle the parts in accordance with your WarrantyBulletin on warranty parts handling.Attach. (1-Rework Procedure)Rework Procedure
Remove the 1497867 top radiator fan belt guardto gain access to the top belt pulley.
Remove the radiator fan guard(s) to gain accessto the fan-to-adapter bolts.
Loosen the four (4) bolts on the radiator fanbelt tensioner.
Loosen the belts enough so the top pulley is freeto spin. (Spinning the pulley and fan is necessary to gain access to eachfan-to-adapter bolt.)
Disconnect the radiator fan from the adapter.
Remove the shorter 6N4088 adapter from the beltpulley.
Install the longer 7C4911 fan adapter onto thebelt pulley. Torque the adapter-to-pulley bolts to 47 +/- 9 Nm (34.7 +/-6 ft-lb).
Install the fan onto the end of the adapter. Torquethe fan-to-adapter bolts to 105 +/- 20 Nm (77.4 +/- 14.8 ft-lb).
Verify that the fan will not contact adjacentparts, particularly the shroud, during operation.
Adjust the tension of the radiator fan belts to712 +/- 111 N (160 +/- 25 lb) for new belts and to 445 +/- 44 N (100 +/-10 lb) for used belts.
Used belts are defined as belts thathave operated for 30 minutes or more at rated speed.
Install the radiator fan guard(s).
Verify fan clearance to avoid contacting adjacentparts during operation.
Install the top radiator fan belt guard.