GEAR A IDLER 7N2489 - Caterpillar

This Program must be administered as soon as possible. When reporting the repair, use "PI1398" 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 "PI1398" 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 March 7, 1999 Service Letter. Changes have been made to the Affected Product.
Problem
The cab front windshield may unlatch when it is opened and in the stored position on certain 322, 322B, 325, 325B, 330, 330B, 345B, 350, 375 and 5080 Excavators. An improved front windshield latch was effective with those machines listed in Group 2 of this service letter. Two gas springs are used to assist in opening the front windshield. If the gas springs loose tension the windshield can fall. A 1700066 Gas Spring with a locking mechanism will be added to Group 1 machines to prevent the window from falling if it unlatches. Machines with improved latches, Group 2, will be installed with higher force gas springs to improve front windshield operation.
Affected Product
Model & Identification Number
Group 1
322 (9RL1056-1265)
322B (1YS187-368)
325 (7LM1212-1420)
325B (2JR225-738)
330B (6DR148-688)
330L (5YM1620-2101)
350 (3ML785-1012)
375 (8WJ94-96)
375L (1JM234-301)
5080 (8SL81-94)
Group 2
322B (1YS369-762)
325B (2JR739-1743)
330B (6DR689-2010)
345B (4SS214-643, 9GS166-204)
375 (8WJ97-98)
375L (1JM302-375)
5080 (8SL95-106)
Parts Needed
Group 1
2 - 1313540 Locknut1 - 1605158 Spring1 - 1700066 SpringGroup 2
2 - 1313540 Locknut2 - 1605158 SpringAction Required
See the attached Rework Procedures.
Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification.
Service Claim Allowances
This is a 1-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. Park the machine on a level surface and place the front linkage in the servicing position.2. Shut off the engine, move the hydraulic activation control lever to the locked position and remove the start switch key.3. Open the front windshield and latch in the stored position.4. Remove 6C9048 Nuts that fasten the right and left 1302205 Gas Springs to the cab window frame stud. See Illustration 1.5. Remove gas spring retainer clip and pin that attaches the yoke of the gas spring to right and left link assemblies. Remove right hand and left hand gas springs.6. Install 1605158 Gas Spring to the right side of the windshield. Attach the rod end of the gas spring to link assembly using retainer from step 5.7. Place 2 X 4 wooden block (17.5 inches long) on lower right hand rail assembly. See Illustration 1. Using a pry bar compress gas spring to fit over the mounting stud on the cab window frame.8. Install 1313540 Locknut and tighten until snug then back off to allow spring to rotate.9. Install 1700066 Gas Spring with latching feature to the left hand side