PLATE-LOCK 6K2707 - Caterpillar

SEBE7789-02 October 13, 2001
(Revised November 2002)
U-271
A-188
AU-177
S-131
H-95
O-206
Priority PRODUCTIMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY REPLACING VIBRATION DAMPERSDUE TO LEAKS FROM THE SEALING PLUG ON CERTAIN 3508, 3512, AND 3516 ENGINES;777, 785, 789, AND 793 OFF HIGHWAY TRUCKS; 992, 994 WHEEL LOADERS; D11TRACK-TYPE TRACTORS; 5130 EXCAVATORS AND 854 WHEEL DOZERS
1205 PI30108
This Program must be administered assoon as possible. When reporting the repair, use "PI30108" 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 "PI30108" as the Part Number, "7751" as the GroupNumber, "96" as the Warranty Claim Description Code, and "Z" as the SIMSDescription 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. This Revised Service Letter replacesthe October 13, 2001 (Revised January 2002) Service Letter. Changes havebeen made to the Affected Product.
COMPLETION DATE
TERMINATION DATE
April 30, 2002 October 31, 2002PROBLEM
Some 1678134 Vibration Dampers have been foundto leak internal fluid from the sealing plug causing the damper to becomenon-functional or resulting in crankshaft failure.
: A loss of more than 10% of itsfluid volume will render the damper non-functional and may result in crankshaftfailure.AFFECTED PRODUCT
Model Identification Number
3508GEN 23Z7643-7644,7647, 7649, 7651, 7654-7673, 7675-7683, 7685,
7687, 7689-7690, 7692-77023LS226-22770Z10567DS188-1927EZ288-290
3508BGEN 4GM555,557, 560, 579, 5846PN615, 618-619, 622
3508LOCO 4WD21-22
3508BLOCO 5PS256,260-262
G3508 2TJ165-1687NJ623-647, 649-652
3508IND 68Z114695Y1121
3508SPARE 4ZL682-7025TL399-4145XS185-191
3508MAR 69Z866-8706CL370-3766FL412-41996Y1966-19719WN15
3508BMAR 7SM303-304,306-312, 315-351
3508BSPARE 2GR2354,2361-2362, 2365, 2367-2368, 2371, 2375, 2381-2383,
2385-2386, 2393-2394, 2396,2399, 2404, 2426, 2429, 2455,
2459, 2463, 2466, 2474, 2478,2480, 2500, 2503, 2511-2512,
2516, 2530, 2534, 2538
3508VEH 7YG2198-2200
3512GEN 24Z9572,9574, 9576, 9578, 9582-9586, 9591, 9593, 9596-9598,
9600-9601, 9604, 9607-9609,9614, 9621, 9623, 9626-9627,
9629-9630, 9632, 9634-9635,9637-9638, 9640-9645, 9647-
9648, 9651, 9657-9658, 9661-9663,9665-9673, 9676, 9678,
9681, 9684, 9686, 9693, 969867Z1887, 1890-1892
3512TRUCK 96Z936
3512BGEN 4AW384-385,388, 391-397, 402-404, 407