Update Water Lines Group On Certain 3606, 3608, 3612, And 3616 Diesel Engines Caterpillar

Update Water Lines Group On Certain 3606, 3608, 3612, And 3616 Diesel Engines

Usage:

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Caterpillar: Confidential Yellow

NOTE: This Program must be administered as soon as possible. When reporting the repair, use "PI1324" as the Part Number, "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description Code. Exception: If the repair is done after failure, use "PI1324" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

Problem

The 1206437 and 1206438 Couplings used in the 1218021, 1218022, 1218023, and 1218024 Lines Group may slip off of the water piping during operation causing hot engine jacket water to escape from the jacket water circuit.

Affected Product
Model & Identification Number

3606 (8RB571, 8RB588, 8RB589, 8RB599, 8RB600, 8RB610, 8RB614-617, 8RB631, 8RB632, 8RB634 , 8RB635)

3608 (6MC489-499, 6MC511, 6MC517, 6MC519, 6MC529)

3612 (9RC167, 9RC168, 9RC185, 9RC187, 9RC190, 9RC192, 9RC199, 9RC201-203, 9RC205, 9RC209-211 , 9RC213, 9RC217, 9RC223)

3616 (1PD184, 1PD198-205, 1PD207-211, 1PD223, 1PD224, 1PD226-231, 1PD237, 1PD238, 1PD245-248 , 1PD250, 1PD254-259, 1PD267, 1PD268)

Parts Needed

4 - 3E7424 Clamp

4 - 1242732 Clamp

1 - 1378788 Connector

1 - 1378789 Connector

1 - 1389817 Tube

1 - 1389818 Tube

Action Required

See attached rework procedure.

Owner Notification

U.S. and Canadian owners will receive the attached Owner Notification.

Service Claim Allowances

Parts Disposition

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

NOTE: MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

Attach.

(1-Owner Notification)

(2-Rework Procedure)

Copy Of Owner Notification For U.S. And Canadian Owners

Rework Procedure

Procedure: Jacket Water Pump Inlet Connector

- Illustration 1

1. Remove the old 1206437 Coupling.

2. Measure the gap between the tube ends.If the dimension is within tolerance (104 ± 10 mm) then skip to Step 4. If the tube is not within tolerance, it will need to be removed and either lengthened, or shortened, using the tube provided.

3. If lengthening the tube, cut the tube far enough away from the expanded end that the 1389817 Extension will not extend past the taper inside the tube. If shortening the tube, cut and remove a section from the tube of appropriate length, and rejoin the tube by welding the 1389817 Extension between the two halves.

4. Install the new 1378788 Coupling. Note that the short end of the coupling goes on the pump side. Tighten the 1242732 Hose Clamps to the recommended torque value (11 ± 1 N·m). Procedure: Jacket Water Outlet Connector

- Illustrations 2 & 3

1. Remove the old 1206438 Coupling.

2. Measure the gap between the tube ends.If the dimension is within tolerance (61 ± 10 mm) then skip to Step 4. If the tube is not within tolerance, it will need to be removed and either lengthened, or shortened, using the tube provided.

3. If lengthening the tube, cut the tube on the regulator housing end, close to the regulator housing. Weld the 1389818 Extension between the two halves to bring the gap to the appropriate length. If shortening the tube, cut and remove an appropriate length from the tube, and rejoin the tube by welding the 1389818 Extension between the two halves.

4. Install the new 1378789 Coupling.Install and tighten the 3E7424 Hose Clamps to the recommended torque value (11 ± 1 N·m).

Illustration 1