HOSE AS 4151001 - Caterpillar

29May2008
(Revised 10Jun2008)
U-288
A-234
D-230
O-254
TM-13
Parts stock action only
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTION TO ENSURE THAT FACTORY COOLING WATER HAS BEEN FULLY DRAINED FROM REMAN 3412 AND 3408 ENGINES
1350 1395 7750 PI70259
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.
This Revised Service Letter replaces the 29MAY2008 Service Letter. Revision 00 did not publish to SISWeb.
TERMINATION DATE
31Aug2008
PROBLEM
The cooling water used during the hot test procedure at the factory may not be fully drained from the engine. It is possible that there is a large amount of water remaining in the engine. The remaining cooling water may freeze, in cold climates during long term storage, and possibly damage the engine. This service letter only applies to engines in dealer inventory that have not been put into service.
PARTS NEEDED
Qty
Part Number Description
1 4N0864 GASKET (As Required)
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.
ACTION REQUIRED
Refer to the appropriate service manual as necessary.
Remove the coolant drain plugs from the oil cooler assembly and allow water to drain. Also remove the coolant plug or 4N-1682 Cover Plate from the opposite side of the engine and allow coolant to drain. If the Cover Plate is removed, a new gasket is required upon assembly. Refer to attached Rework Procedure.
SERVICE CLAIM ALLOWANCES
1.0 hour will be allowed for each engine inspected and drained.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Rework Procedure
Refer to Image 1.1.1 for a list of the effected product by model and part number.
Image1.1.1
1. Remove coolant drain plugs (A) from the oil cooler assembly and allow water to drain. Image 1.2.1.
2. Remove the 4N-1682 Cover Plate (B) or coolant drain plug (C) on the opposite side of the cylinder block from the oil cooler assembly and allow water to drain. Image 1.2.2.
Image1.2.1
Image1.2.2
3. Re-install drain plugs.
4. If the cover plate was removed, re-install the 4N-1682 Plate with a new 4N-0864 Gasket.