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PRIORITY - INSTALL NEW OIL FILTER BASE ON CERTAIN PRODUCTS EQUIPPED WITH 3300 SERIES ENGINES - MAILED US, COFA, CANADA, CFE L, COSA, LIMITED CACO
  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.
INSTALL NEW OIL FILTER BASE ON CERTAIN PRODUCTS EQUIPPED WITH 3300 SERIES ENGINES, 1306, PI3180 U-109 A-50.4 AU-85 C-107 E-67 O-80 priority COMPLETION DATE Termination Date
April 30, 1987 October 31, 1987
Problem
On certain products equipped with 3300 Series Engines, the oil filter base assemblies do not have a passage between the filter by-pass valve port and the outlet port. Loss of oil pressure and/or leakage of oil from the seal between the oil filter and the base assembly can result if the filter is plugged.
Affected Product
Model Identification Number D4E 50X1037, 1038 52X1805-1813 D5B 47X670-687 D6D 30X3387 31X3804, 3806, 3810-3812 32X2133-2152 33X729-735 D7G 65V5477, 5481-5489, 5491-5523, 5525-5567, 5575, 5611-5615, 5622, 5623, 5630, 5632 D5H 3MD431, 437-454 4KD262-276 1YD571-573 2SD248-258, 260-265, 268 D6H 8FC286-332 3ED442 1KD336-350, 355, 358 2KD409, 414-417, 419-437, 442-445 D7H 4AB775, 777-783, 785, 787-794 5WB649-656, 659-661, 663-665 936 4SB1257, 1275, 1282-1301, 1307, 1313, 1321, 1322 950B 65R2514, 2574, 2596, 2608, 2611-2615, 2618, 2620, 2623-2628, 2630, 2632-2638, 2640, 2641, 2644, 2647, 2650-2654, 2656-2659, 2661, 2663, 2664 966D 35S1959, 1973, 1974, 1990-2019 963 29S1160, 1162, 1172 973 90L716-725
Parts Needed
2 - 8M4432 Seal 2 - 8N6985 Gasket 1 - 7F7590 Gasket 1 - 2M5407 Gasket 1 - 2P4004 Filter 2 - 9M4849 Seal 1 - 2W6681 Base As. (not needed if existing base assembly is reworked) Dealers will need to order the parts for this Program.
Action Required
Remove and disassemble the existing oil filter base assembly. The existing base assembly may be reworked or a new base assembly installed. If a new oil filter base is to be used, install the new base, gasket, seals and filter. If the oil filter base is to be reworked, remove the plug and drill a 14 mm (.547") hole at the location shown in the illustration. Use care so the threads for the plug are not damaged. After drilling the hole, it is very important to make sure all chips and burrs are removed. Put silicone sealant on the plug and install the plug. Assemble the base assembly using the new gaskets and seals. Install the new oil filter. (SEE ILLUSTRATION)
Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification. WARRANTY ALLOWANCES Caterpillar Dealer Suggested Customer Suggested Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (D/N) (Sell) (C/L) (Sell) 100% 1.5 0 0 0 0 This is a 1.5-hour job to remove, disassemble assemble and install the new base assembly. If the existing base assembly is modified an additional 1 hour will be allowed.
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 XYZ Corporation 3240 Arrow Drive Anywhere, YZ 99999 PRIORITY - New Oil Filter Base Needs To Be Installed MODELS INVOLVED - Certain Products Equipped With 3300 Series Engines Dear Caterpillar Product Owner: A new oil filter base needs to be installed on the products listed below. The base on these units does not have an internal bypass passage that is needed if the filter becomes plugged. The replacement will be done at no cost to you. Contact your local Caterpillar dealer immediately and schedule a time to have this service performed. The repair time for this service is approximately one and a half hours. We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime. Caterpillar Identification # (s) Attached to October 28, 1986 Service Letter