BOLT 5348648 - 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 "PS4110" 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 July 8, 1997 (Revised November 1997) Service Letter. Changes have been made to the Affected Product, Parts Needed and Service Claim Allowances.
Termination Date
July 31, 1998Problem
Current software allows false activation and logging of low oil pressure events (E100) on 3408E and 3412E Engines used in D9R and D10R Track-Type Tractors, 988FII and 990 Wheel Loaders, 769D, 771D, 773D and 775D Trucks and Tractors 631E, 633E, 637E, 651E and 657E Scrapers, 24H Motor Graders, 69D and 73D Trucks, PM565 Profilers, 834B Wheel Dozers and 836 Compactors.
Affected Product
Model & Identification Number
988FII (2ZR1-915)
990 (4FR1-272)
769D (5TR1-674)
771D (6JR1-172)
773D (7ER1-530)
775D (6KR1-180)
D9R (7TL557-851 8BL830-1052 )
D10R (3KR1-853)
631E (1AB1640-1735)
633E (2PS290-305)
637E (1FB660-716)
651E (4YR188-203)
657E (7KR202-238 5YR212-245 6TR199-206 )
24H (7KK1-48)
PM565 (3TK113-115, 3TK117-123)
PM565B (8GS131-Up)
69D (9SS1-170)
73D (1GW1-120)
834 (7BR1-Up)
836 (7FR1-263 7FR264-Up )
Parts Needed
Action Required
Install new software by using the flash files that are available on the bulletin board or the service replacement modules that can be ordered through the parts system.
Installation of the new software on engines that have the oil pressure sensor installed at the oil filter base must move the oil pressure sensor back to its original location.
The flash file and control group have changed on this revision for the D10R. Install new part numbers and claim PS4110 as part causing failure.
Service Claim Allowances
This is a 1-hour job.
Allow an additional 1-hour labor for moving the oil pressure sensor on those engines that have the sensor mounted at the base of the oil filter.
Allow an additional 1 hour labor for 657E Scrapers since each ECM must be disconnected and flashed separately.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.