859490 Volvo.Penta Bracket

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PSP FOR RACK INTERFERENCE IN THE REAR GOVERNOR HOUSING; 3304, 3306 ENGINES WITH NSFS - MAILED US AND CANADA, CACO, COFA, CFE L, COSA
  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.
PRODUCT SUPPORT PROGRAM FOR RACK INTERFERENCE IN THE REAR GOVERNOR HOUSING; 3304, 3306 ENGINES WITH NSFS, 1287, PS4052 U-19 A-12 AU-17 C-19 E-16 O-15 This Program can be administered either before or after a failure. When reporting the repair, use "PS4052" as Part Number and "7755" as Group Number. Termination Date
March 31, 1987
Problem
A casting change was made to the 8N2501 (Rear) Governor Housing used on the above products. This change eliminated a needed boss in the housing. Without the boss, it is possible for the shutoff lever (2W5373) to swing back into the governor housing causing the front of the lever to miss the end of the servo shaft. When the lever misses the end of the servo shaft, the rack normally will be held in a near shutoff position. It is also possible, but unlikely, for the rack to be held in the full open position. The misengagement of the shutoff lever and the servo shaft can only occur when the rear governor housing is being installed after a repair.
Affected Product
Ranges are shown for the products. Not all the products in the ranges need to be reworked. Model Serial/Identification Number 3304 Industrial 10E1545-1577 3304 Marine 13E699-708 3304 Generator Set 83Z2710-2860 3306 Truck 63Z2612-2760 3306 Industrial 64Z4204-4342 3306 Marine 84Z773-802 3306 Generator Set 85Z2241-2384 D6D 5X1278-1280 6X2051 D6H 4RC430-488 D7H 79Z836-884 77Z871, 872 12G 3WC900-907 61M11229-11284 14G 96U6723-6746 120G 2AB47-51 87V7531-7811 130G 7GB1671-1886 59K68-71 74V2239-2254 140G 72V9065-9077 235B 7WC306 518 94U1355 528 96C297-300 615 46Z1266-1268 627B 14S1286-1291 15S1734-1737 815B 17Z640-654 816B 15Z579-588 936 33Z1603-1781 950B 22Z2012-2053 966D 99Y4125-4140
Parts Needed
1 - 5H1351 Pin (Spring)
Action Required
Check to see if the product needs to be reworked. The 8N2501 Governor Housings, which is unacceptable, can be identified by internal differences in the casting. See Illustration 1. Also check to see if the housing has already been reworked. The letter "P" is stamped on all housings that have already been reworked. See Illustration 2. ILLUSTRATION 1 (SEE ILLUSTRATION) ILLUSTRATION 2 (SEE ILLUSTRATION) To rework the 8N2501 Housing, remove the housing from the governor. Drill a 3.2 mm (.125") hole as shown in Illustration 3. Install the 5H1351 Pin so the top of the pin is 43.61 +/- .64 mm (1.717 +/- .025) away from the front of the rear housing. USTRATION 3 (SEE ILLUSTRATION) WARRANTY ALLOWANCES Caterpillar Dealer Suggested Customer Suggested Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (D/N) (Cost) (C/L) (Sell) 100% 1 0 0 0 0
Parts Disposition
Not applicable