PSP FOR REPLACING LEAKING EXHAUST GAS INLET HOUSINGS ON CERTAIN 3606, 3608, 3612, AND 3616 ENGINES - PS0457 - MAILED US AND CANADA, CACO, COFA, BRAZIL, LIMITED COSA, LIMITED CFEL Caterpillar

PSP FOR REPLACING LEAKING EXHAUST GAS INLET HOUSINGS ON CERTAIN 3606, 3608, 3612, AND 3616 ENGINES - PS0457 - MAILED US AND CANADA, CACO, COFA, BRAZIL, LIMITED COSA, LIMITED CFEL

Usage:

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Caterpillar: Confidential Yellow

PSP FOR REPLACING LEAKING EXHAUST GAS INLET HOUSINGS ON CERTAIN 3606, 3608, 3612, AND 3616 ENGINES - PS0457 - MAILED US AND CANADA, CACO, COFA, BRAZIL, LIMITED COSA, LIMITED CFEL

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.


U-261
A-181
AU-163
B-49
O-201.1
1052, 1065  PS0457
NOTE: This Program can only be administered after a failure
occurs. The decision whether to apply the Program is made
by the dealer. When reporting the repair, use "PS0457" as
Part Number, "7755" as Group Number, and "96" as
Description Code.
NOTE: Although this Program is to be administered as described above on
the Affected Product, turbochargers in customer and dealer parts
stock should be reworked as soon as possible.

Termination Date

December 31, 1991

Problem

Early versions of both the one and the two piece gas inlet housings for the
turbochargers used on certain 3606, 3608, 3612, and 3616 Engines may leak in
various locations. New 24 bolt two piece gas inlet housings can be installed
to provide better sealing.

Affected Product

Model Identification Number
3606 8RB1-400
2S18451
3608 6MC1-292
3612 9RC13-81
2S18175
3616 1PD18-42

Parts Needed

1 - 4P0308 Housing (3606 Only)
2 - 4P0308 Housing (3612 Only)
1 - 4P0309 Housing (3608 Only)
2 - 4P0309 Housing (3616 Only)

Action Required

***** Parts Stock *****
Replace the exhaust gas inlet housing on all 7C5125, 7C5846, 7C5847, 7C5848,
7C6148, 4W8685, and 9Y7032 Turbochargers in customer and/or dealer parts
stock.
***** Affected Product *****
If the earlier exhaust gas inlet housing is cracked or leaking, replace the
housing with a 4P0308 Housing (3606 and 3612) or a 4P0309 Housing (3608 and
3616). Record the serial number of the engine and turbocharger and report
this information to Service Engineering.
On 3612 and 3616 Engines equipped with two turbochargers; if one earlier
exhaust gas inlet housing is cracked or leaking, repair both turbochargers by
installing the appropriate housings.

Service Claim Allowances

***** Parts Stock *****
Submit one claim for all 7C5125, 7C5846, 7C5847, 7C5848, 7C6148, 4W8685, and
9Y7032 Turbochargers in parts stock that were reworked.
NOTE: This is a 3-hour job to rework each turbocharger in parts stock.
***** Affected Product *****
Product Caterpillar Dealer Suggested Customer Suggested
smu Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
0-10000 100% 6 0 0 0 0
10001-15000 100% 0 0 0 0 6
NOTE: This is a 6-hour job per turbocharger.
NOTE: The turbocharger serial number(s) must be included with each
claim story.

Parts Disposition

All parts removed (with the exception of cores used for Caterpillar
Remanufactured parts) should be rendered useless and scrapped immediately
upon completion of the repair.