Product Support Program For Replacing The Turbo Wash Lines Groups On Certain 3606, 3608, 3612, And 3616 Heavy Fuel Operation (HFO) Engines Caterpillar

NOTE: 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.

NOTE: This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS8757" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

Termination Date

Problem

The hoses and fittings in the 1263566, 1263576, 1262637, and 1252420 Turbo Wash Lines Group may deteriorate due to exhaust heat and engine vibration on certain 3606, 3608, 3612, and 3616 Heavy Fuel Operation Engines.

Affected Product
Model & Identification Number

3606 (8RB558, 8RB585, 8RB590, 8RB591)

3608 (6MC310, 6MC311, 6MC313, 6MC332, 6MC333, 6MC380, 6MC410, 6MC411, 6MC480-482, 6MC488-491 )

3612 (9RC121, 9RC130, 9RC131, 9RC143, 9RC187, 9RC188)

3616 (1PD82-85, 1PD103, 1PD104, 1PD108-110, 1PD112-115, 1PD117, 1PD119-143, 1PD148 , 1PD154, 1PD156-161, 1PD163, 1PD165, 1PD167-175, 1PD177, 1PD179, 1PD185-188 , 1PD198-207, 1PD212-215, 1PD217, 1PD238, 1PD241-244, 1PD253-255 )

Parts Needed

Order parts by Engine Model designation.

In-line Engines (3606, 3608)

1 - 8C9024 Nipple Assembly

2 - 1252422 Nipple

2 - 1342594 Valve

Vee Engines (3612, 3616)

2 - 8C9024 Nipple Assembly

4 - 1252422 Nipple

4 - 1342594 Valve

Tool Group (1271508)

1 - 0094440 Connector

1 - 8C9025 Coupler

1 - 4K2430 Tee

2 - 9X2350 Hose (24")

4 - 9X3634 Coupling

1 - 1383811 Coupler

2 - 1383812 Coupler

Exhaust Back Pressure Tool Group

1 - 0619463 Connector

1 - 8S7169 Coupling

1 - 8T0848 Gauge

1 - 1180280 Coupling

1 - 1245993 Hose Assembly

1 - 1383812 Coupler

Action Required

Remove the following parts as indicated by the Model Designation and replace with the parts listed in the "Parts Needed" section of this letter.

3606 (1263566)

1 - *3B7749 Nipple (remove one at 8C9025 Coupler)

1 - 8C6905 Nipple

1 - 8C9025 Coupler

2 - 7L7262 Union

1 - 5P3166 Tee

1 - 6V2481 Union

2 - 1243462 Valve

1 - 1254125 Hose Assembly

1 - 1259241 Nipple

3608 (1263576)

1 - *3B7749 Nipple (remove one at 8C9025 Coupler)

1 - 8C6905 Nipple

1 - 8C9025 Coupler

2 - 7L7262 Union

1 - 5P3166 Tee

1 - 6V2481 Union

2 - 1243462 Valve

1 - 1245993 Hose Assembly

1 - 1259241 Nipple

3612 (1262637)

2 - *3B7749 Nipple (remove one at each 8C9025 Coupler)

2 - 8C6905 Nipple

2 - 8C9025 Coupler

4 - 7L7262 Union

2 - 5P3166 Tee

2 - 6V2481 Union

4 - 1243462 Valve

2 - 1254126 Hose Assembly

2 - 1259241 Nipple

3616 (1252420)

2 - *3B7749 Nipple (remove one at each 8C9025 Coupler)

2 - 8C6905 Nipple

2 - 8C9025 Coupler

4 - 7L7262 Union

2 - 5P3166 Tee

2 - 6V2481 Union

4 - 1243462 Valve

2 - 1245993 Hose Assembly

2 - 1259241 Nipple

Action Required Cont.

Tooling Update

1. Remove the nipple and adapter from the existing drain tube.

2. Add a 0094440 connector and an 8C9025 Q-disk Coupler.

3. Attach the 9X3634 Couplings to the 9X2350 Hoses.

4. Connect the hose assemblies to the 4K2430 Tee.

5. Connect the 1383812 Coupler to the other end of the hose.

6. Connect the 1383811 Coupler to the tee.

NOTE: This coupler will connect to the existing hose assembly.

Service Claim Allowances

Labor Breakdown

Parts Disposition

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