FA581010 Force CYLINDER

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PRIORITY - NEW SPRINGS NEED TO BE INSTALLED IN THE UNIT INJECTORS ON CERTAIN 3606, 3608, 3612 AND 3616 ENGINES - PI3 396 - MAILED US, CANADA, CACO, COFA, LIMITED BRAZIL, CFEL, 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.
U-75 A-53 AU-49 B-12.2 E-38.1 O-53.1 PRIORITY parts stock 1290 PI3396 COMPLETION DATE Termination Date
October 31, 1989 April 30, 1990
Problem
The springs in the unit injectors on certain 3606, 3608, 3612, and 3616 Engines may fail and cause unscheduled down time. A spring failure may cause damage to a pushrod or rocker arm.
Affected Product
Model Identification Number 3606 8RB1-293, 296, 297, 314-350, 352, 354, 3608 6MC1-242, 248-250, 251, 253-275, 277-280 5PG1-3 3612 9RC14, 15, 18-47, 52, 53, 57, 58 3616 1PD1-28
Parts Needed
Dealers will need to order parts for this Program. ***** Parts Stock ***** 1 - 7E5404 Spring (1 for each 7C7445 or 7C3854 Injector in the customer or dealer parts stock) ***** Affected Product ***** 1 - 7E5404 Spring (1 per cylinder) 1 - 7W1990 Retainer (use as required) 1 - 7N9463 Keeper (use as required)
Action Required
***** Parts Stock ***** Use the attached procedure and tool list for the Affected Product as a guide. Replace the existing spring in each 7C7445 or 7C3854 Injector in customer or dealer parts stock with a new 7E5404 Spring. ***** Affected Product ***** See the attached procedure.
Service Claim Allowances
Caterpillar Dealer Suggested Customer Suggested Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (C/L) (Sell) (C/L) (Sell) ***** 3606 Engines ***** 100% 6 0 0 0 0 ***** 3608 Engines ***** 100% 8 0 0 0 0 ***** 3612 Engines ***** 100% 12 0 0 0 0 ***** 3616 Engines ***** 100% 16 0 0 0 0 ***** Parts Stock Injectors ***** 100% .5 0 0 0 0 This is a 1-hour job per cylinder in the Affected Product and a .5-hour job per injector for injectors in customer or dealer parts stock. Submit one claim for replacing the spring in all parts stock injectors.
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-Spring Replacement Procedure) (2-Fabricated Tool List) Spring Replacement Procedure 1. Remove the rocker arm assembly and injector clamp. 2. Center the compression plate over the injector and install the 3/8"-16 all-thread rod in the cylinder head through the holes for