CARTRIDGE GP-TURBOCHARGER 1162808 - Caterpillar

Piston Cooling Jet Retainer Bolts Need To Be Inspected For The Correct Torque On Certain 3508, 3512, And 3516 Engines; And 785 trucks
SMCS - 1331 PI3554
August 3, 1991
U-142
A-106
AU-91.1
O-107
TM-11 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.
Completion Date
February 29, 1992Termination Date
August 31, 1992Problem
The piston cooling jet retainer bolts need to be inspected for the correct torque on certain 3508, 3512, and 3516 Engines; and 785 Trucks.
Affected Product
Model & Identification Number
785 (8GB602-605,8GB608)
3508 (1ZF601-610;96Y1161-1170;23Z3712-3780;68Z776-781;69Z565-568)
3512 (4KC225-239;3YF607;49Y609-625;50Y952,50Y953;51Y629-635;24Z3937-3990;66Z438,66Z439; 67Z849-851)
3516 (3RC356-376;25Z2307-2364;27Z693-696;29Z967-970;71Z302,71Z303;72Z428,72Z429;73Z473-499)
PARTS NEEDED
Not Applicable
Action Required
1. Remove all the engine lower side covers.2. Check the piston cooling jet retainer bolts to make sure they are tightened to the correct torque.1B2790 Bolts - 25 7 N m (18 5 lb ft)0T0102 Bolts - 45 7 N m (32 5 lb ft)3. Install the lower engine side covers.Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification.
Service Claim Allowances
This is a 2-hour job.
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)COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS