Usage:
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 "PS8987" 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.
Termination Date
March 31, 1998Problem
The air filter vacuum gage, 1W0613, was melting because it was located too close to the turbo charger. Lines group, 1W9881, was changed to relocate the vacuum gage to a cooler environment and allow easier inspection and access for service. This support program provides the Parts Needed to convert current field machines to this improved design.
Affected Product
Model & Identification Number
834B (92Z1-614)
836 (3RL1-98)
Parts Needed
- 2 - 3B6552 Elbow
- 1 - 8B4884 Elbow
- 1 - 6V3970 Grommet
- 1 - 1W0613 Indicator
- 1 - 1240368 Pipe
- 1 - 1240369 Pipe
- 1 - 8B4884 Elbow
Action Required
See the attached rework procedure.
Service Claim Allowances
NOTE: This is a 2-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Attach.
- (1-Rework Procedure)
Rework Procedure
1. Remove the gage and elbow from the air lines.
2. Install the 3B6552 Elbow and position it face down.
3. Modify the 8V5296 Shield per the attached drawing.
4. Insert the 6V3970 Grommet into the hole added to the shield.
5. Install the 1240369 Pipe into the 3B6552 Elbow.
6. Add the 8B4884 Elbow to the 1240369 Pipe.
7. Insert the 1240368 Pipe through the grommet and insert it in the 8B4884 Elbow.
8. Attach the 3B6552 Elbow and the 1W0613 Gage.
1W9881 Air Lines Group
Illustration 1
Parts Needed For Relocation
Illustration 2 - View A-A
Illustration 3
(B) Drill one 17.00 ± 0.40 - 0.15 mm (.750 ± .010 -.002 in) hole in the shield.