SCREEN AS 2199793 - Caterpillar

This Program must be administered as soon as possible. When reporting the repair, use "PI1237" as the Part Number, "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description Code. Exception: If the repair is done after failure, use "PI1237" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.
This Revised Service Letter replaces the December 22, 1993 Service Letter which was Suspended/Revised January 1994. Changes have been made to the Problem, Affected Product, and Parts Needed. Parts Stock Action has been added. If this Program was implemented before it was suspended, it will need to be implemented again.
Problem
The parking brake discs, in certain 994 Wheel Loaders, need to be replaced with discs that have been heat treated and shot peened. These new discs, that have been heat treated and shot peened, will be used as an interim fix until a repair is available that has a longer service life.
Affected Product
Model & Identification Number
994 (9YF1-51)
Required on 9YF1-51 only if PI3664 was impleted using 1002714 Discs.
994 (9YF52-99)
Required on all using 1002714 Discs.If this Program was implemented before it was suspended, on 9YF52-68, it needs to be implemented again.
Parts Needed
Dealers will need to order parts for this Program.
4 - 1162386 Disc-FrictionAction Required
Parts Stock
Remove all 1002714 Discs from parts stock.
Affected Product
See the attached procedure.
Owner Notification
U.S. and Canadian owners will receive the Owner Notification Letter.
Service Claim Allowances
Parts Stock
Submit one claim for all 1002714 Discs that were removed from Parts Stock.
Affected Product
This is a 4-hour job.
U.S. and Canadian Dealers Only - Eligible dealers may enter a Type 2 SIMS Report.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
Attach.(1-Owner Notification)(2-Rework Procedure)Copy Of Owner Notification For U.S. And Canadian Owners
Rework Procedure
1. place machine on flat ground. Lower bucket. block tires so that machine cannot move. Pump brake pedal until brake accumulators are completely discharged.2. Disconnect end of 8R8515 Joint Group connected to parking brake by removing four 9X6480 Bolts. See Illustration 1.3. Move four 8T0357 Bolts (or 8T0281 preferably) from stored location (shallow holes ) to parking brake disengage location (deep holes). Screw bolts to disengage brakes. See Illustration 2.4. Remove two 1061866 Cylinders from parking brake by removing 8T7013 Bolts. Set cylinders aside, leave hydraulic hose connected to cylinders. See Illustration 2.5. Remove 1002719 Plate by removing four 8T5002 Bolts. See Illustration 2.6. Remove four existing 1002714 Discs and three 1004910 Plates. Install the new 1162386 Discs and the three 1004910 Plates removed. See Illustration 2.7. Install the 1002719 Plate and four 8T5002 Bolts. Tighten the bolts to a torque of 125 20 N m (94 15