VALVE-CHECK 2143524 - Caterpillar

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.
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 "PS8952" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
This Revised Service Letter replaces the June 2, 1997 Service Letter. Changes have been made to the Affected Product.
Termination Date
June 30, 1998Problem
The 1142017 Tube, which is part of the 4N2474/6I1574 Water Lines Group, may fail at the formed ends of the coolant tube.
Affected Product
Model & Identification Number
D8N (5TJ3031-9999 7TK497 , 7TK500-9999)
D8R (7XM1-1339 9EM1-421 )
16H (6ZJ1-202)
980G (05A11356, 11357, 11478, 11479) 2KR1-803 , 2KR805-811, 2KR813-993, 2KR995 2SR1-383 )
824C (85X1726-9999)
824G (4SN1-341)
825C (86X1161-9999)
825G (6RN1-391)
826C (87X1909, 87X1911-9999)
826G (7LN1-240)
621F (05A10786, 10906, 10975-10980, 10986, 11023, 11099, 11206-11212, 11226, 11239-11245, 11254-11257, 11320, 11321, 11332, 11358, 113594SK346-349, 4SK354-356, 4SK358-362, 4SK367-381, 4SK383-399, 4SK401-407 , 4SK409, 4SK410, 4SK412-415, 4SK417-419, 4SK421, 4SK423, 4SK424 , 4SK426-430, 4SK432, 4SK433, 4SK435-437, 4SK439-440, 4SK443, 4SK448-450 , 4SK452, 4SK454-456, 4SK458, 4SK460-467, 4SK469-474, 4SK476-486 , 4SK488-493, 4SK495-533, 4SK535-539)
623F (6BK264-384)
627F (1DL224-331)
SS250B (5GR1-105)
RR250B (3RR1-103)
SM350 (1RM59, 1RM61-79)
RM350 (5FK94-128)
Parts Needed
1 - 6F8515 Spacer (for Models 980G, 824C/G, 826C/G, SS250B, RR250B, RM350, and SM350)-OR-1 - 8B0544 Spacer (for Models D8N, D8R, 621F, 623F, and 627F)-OR-1 - 3L3825 Spacer (for Model 16H)1 - 0L2070 Bolt1 - 5M2894 Washer2 - 9M7002 Seal-O-Ring1 - 2S2053 Clip1 - 1412900 TubeAction Required
Install an additional 2S2053 Clip and a new spacer at the lower end of a new 1412900 Tube (A) (see Illustration 1). Do not reuse the old tube.
Illustration 1 Service Claim Allowances
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.