0584363 JOHNSON TIMER BASE & SENSOR ASSY.

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SERVICE LETTER SUPPLEMENT FOR FEBRUARY 6, 1990 SL - PI3429 - PRIORITY - THE CRANKSHAFT NEEDS TO BE INSPECTED AND REPLACED IF NECESSARY IN CERTAIN 3516 MARINE, GENERATOR SET, INDUSTRIAL SPARK IGNITED, AND LOCOMOTIVE ENGINES; AND 789 TRUCKS - PI3429 - MAIL ED US AND CANADA, CACO, COFA, LIMITED CFEL, LIMITED 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-86 A-53 AU-54 E-55.1 O-68.1 Some information needs to be changed in the Service Letter which follows: February 6, 1990 - PI3429; The Crankshaft Needs To Be Inspected And Replaced If Necessary In Certain 3516 Marine, Generator Set, Industrial, Spark Ignited, And Locomotive Engines; And 789 Trucks Under the heading Parts Needed, change the oil pan gasket to a 7E2632 Gasket- Oil Pan in the following five lists of additional parts required. Additional Parts For Marine Engines With 2W8864 Or 8N0464 Arrangements Additional Parts - Marine Engines With 1W4225 And 2W8870 Arrangements And Industrial Engines With 1W4222 Arrangements Additional Parts List - Generator Set Engines With 8N0462 And 2W8404 Arrangements And Industrial Engines With 8N0461 Arrangements Additional Parts List - Generator Set Engines With 7C1301 And 7C5186 Arrangements Additional Parts List - Prime Power Lo Speed Generator Sets With 2W8871 Arrangements Under the heading Service Claim Allowances, change the claim allowances for 3516 Generator Set, Industrial, Spark Ignited, Locomotive, and Marine Engines as follows: Caterpillar Dealer Suggested Customer Suggested Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (D/N*) (Sell) (C/L) (Sell) 3516 Generator Set, Industrial, and Spark Ignited Engines 100% 120 0 0 0 0 3516 Locomotive Engines 100% 170 0 0 0 0 * Qualifies for (C/L) if sold with an OEM warranty. Caterpillar Dealer Suggested Customer Suggested Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (C/L) (Sell) (C/L) (Sell) 3516 Marine Engines 100% 120 0 0 0 0 In the attached Inspection And Rework Procedure, on page 2 of 2, change the last two sentences in the second paragraph to read as follows: Tighten all of the counterweight bolts to a torque of 70 N.m +/- 5 N.m, and then turn 120 deg. +/- 5 deg. Use 6V4876 Thread Lube on threads and under bolt heads to achieve proper tightness.