Product Support Program For Replacing The Front Bevel Gear And Pinion On Certain 988B Wheel Loaders With Custom Modified Torque Converters Caterpillar

Product Support Program For Replacing The Front Bevel Gear And Pinion On Certain 988B Wheel Loaders With Custom Modified Torque Converters

Usage:

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Caterpillar: Confidential Yellow

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.

NOTE: This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS4489" as Part Number, "7755" as Group Number, and "96" as Description Code.

Termination Date

February 28, 1993

Problem

The front bevel gear and pinion may not have as long a service life as desired on certain 988B Wheel Loaders with custom modified torque converters. A new bevel gear and pinion can be installed.

Affected Product
Model & Identification Number

988B (50W8168,50W8187,50W8194,50W8201,50W8247,50W8309,50W8338,50W8344,50W8352,50W8379,50W8471,50W8492,50W8494,50W8501,50W8503,50W8519,50W8521,50W8523,50W8525,50W8531,50W8547,50W8551,50W8630,50W8720,50W8728,50W8739,50W8761,50W8763,50W8773,50W8787,50W8796,50W8798,50W8828,50W8830,50W8861,50W8898,50W8900,50W8909,50W8917,50W8935,50W8936,50W8950,50W8970,50W8987,50W9017,50W9043,50W9046,50W9052,50W9061,50W9084,50W9085,50W9092,50W9094,50W9099,50W9105,50W9109,50W9152,50W9160,50W9175,50W9176,50W9244,50W9253,50W9276,50W9282,50W9285,50W9317,50W9343,50W9351,50W9361,50W9369,50W9399,50W9401,50W9405,50W9410,50W9414,50W9424,50W9430,50W9457,50W9476,50W9478,50W9500,50W9503-9505,50W9543,50W9545,50W9568,50W9572,50W9575,50W9578,50W9580,50W9593,50W9596,50W9600,50W9602,50W9606,50W9607,50W9648,50W9695,50W9698,50W9700,50W9703,50W9705,50W9706,50W9709,50W9720,50W9721,50W9724,50W9728,50W9731,50W9753,50W9760,50W9767,50W9768,50W9770,50W9773,50W9787,50W9830,50W9832,50W9926,50W9935,50W9938,50W9956,50W9957,50W9996,50W9997,50W10012,50W10013,50W10015,50W10020,50W10034,50W10041,50W10051,50W10066,50W10070,50W10071,50W10074,50W10092,50W10109,50W10115,50W10124,50W10126,50W10127,50W10180,50W10183,50W10189,50W10200,50W10205,50W10206,50W10208,50W10219,50W10250,50W10253,50W10255,50W10260,50W10275,50W10323,50W10327,50W10329,50W10331,50W10333,50W10352,50W10354,50W10368,50W10370,50W10372,50W10381,50W10387,50W10409,50W10411,50W10412,50W10426,50W10429,50W10431,50W10440,50W10453,50W10463,50W10479,50W10494,50W10497,50W10500,50W10503,50W10516,50W10517,50W10519,50W10529,50W10537,50W10543,50W10551,50W10554,50W10557,50W10568,50W10662,50W10663)

Parts Needed

1 - 4B9373 Cone

1 - 4B9374 Cup

1 - 2D6533 Seal

1 - 2D8540 Seal

1 - 3D8422 Seal

1 - 2K4472 Seal

1 - 2K5065 Cone

1 - 9K2549 Shim Pack

1 - 1P2694 Cone

1 - 1P2695 Cup

1 - 5P2523 Cone

1 - 5P2525 Cup

1 - 5P2526 Cup

1 - 2Q1297 Pinion Group

1 - 6W4750 Nut

Action Required

Follow the procedure in Special Instruction SEHS9140 "Installing The 2Z8836 Field Service Gear Group" and install the new bevel gear and pinion with the related parts listed.

Service Claim Allowances

NOTE: This is a 30-hour job. An additional 5 hours will be allowed after a failure between 0 and 4000 hours. Between 4001 and 6000 hours an additional 2.5 hours will be allowed after a failure.

NOTE: If there has been a previous repair in which the customer participated, part age will apply. Retain a copy of the previous repair invoice in the dealer's records for audit purposes, and specify repair date and machine hours in the "Additional Comments" section of the warranty claim.