PRODUCT SUPPORT PROGRAM FOR REPLACING THE 304-3355 TORQUE CONVERTER INLET TUBE ASSEMBLY ON CERTAIN TH55-E70 FRAC TRANSMISSIONS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE 304-3355 TORQUE CONVERTER INLET TUBE ASSEMBLY ON CERTAIN TH55-E70 FRAC TRANSMISSIONS

Usage:

REBE7736-00

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02Mar2012

U-111

D-98

O-106

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Before/After Parts stock action needed	PRODUCT SUPPORT PROGRAM FOR REPLACING THE 304-3355 TORQUE CONVERTER INLET TUBE ASSEMBLY ON CERTAIN TH55-E70 FRAC TRANSMISSIONS
7750		PS43523

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NOTE:

This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS43523" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

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NOTE:

When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7755" as the Group Number, "56" as the Description Code.

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NOTE:

Although this Program is to be administered as described above on the Affected Product, parts should be removed from parts stock as soon as possible.

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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.

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TERMINATION DATE

31Mar2014

PROBLEM

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The existing torque converter inlet tube can crack and leak on certain TH55-E70 Frac Transmissions. If the existing tube fails, it will cause an external leak and require replacement.

AFFECTED PRODUCT

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Model	Identification Number
TH55 FT-E70	PCJ00315-01181

PARTS NEEDED

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Qty	Part Number	Description
2	7F8267	SEAL-O RING
2	2287095	SEAL-O-RING-ORFS
1	3712894	TUBE AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 29% 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

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****Parts Stock ****

Remove all 304-3355 tube assemblies from dealer parts stock.

****Affected Product****

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Replace the existing 304-3355 Tube Assembly with a 371-2894 Tube Assembly. See the attached Rework Procedure.

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SERVICE CLAIM ALLOWANCES

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****Parts Stock****

Submit one claim for all parts removed from dealer parts stock.

****Affected Product****

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-8000 hrs, 0-36 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 1.0-hour job

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PARTS DISPOSITION

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****Parts Stock****

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

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****Affected Product****

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

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Rework Procedure

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Image1.1.1

1) Remove clamp assembly (a) between the 304-3354 and 304-3355 Tube Assemblies.
2) Remove the 304-3354 Controls Inlet Tube Assembly at the split flanges on both ends (b).
3) Remove the 304-3355 Torque Converter Inlet Tube Assembly at the barrel nut and split flange (c).
4) Remove the one end of 304-3358 Hose Assembly (d) from the 371-7151 Elbow.
5) Remove the 371-7151 Elbow (e), or loosen it in order to access the 338-4652 Bolts (4-bolt pattern) in the 304-3359 Block.
6) Loosen (4) 338-4652 Bolts (f) in the 304-3359 Block. This will allow the block to be aligned properly when the new 371-2894 TC Inlet Tube is assembled.

Image1.2.1

7) Assemble the new 371-2894 TC Inlet Tube Assembly with new o-rings. Start by tightening the nut end of the 371-2894 Tube Assembly (g) hand-tight on the 371-7151 Elbow.
8) Next, leaving the (4) 338-4652 Bolts loose, position the opposite end of the tube assembly on the filter and install the split flanges and bolts (h).
9) Torque the (4) 338-4652 Bolts (i) in the 304-3359 Block.
10) Torque the barrel nut end of the 371-2894 Tube Assembly (g) to final torque.

Image1.3.1

11) Reassemble the 371-7151 Elbow (j) to the 304-3359 Block.
12) Reassemble the 304-3358 Hose as (k) to the 371-7151 Elbow.
13) Reassemble the 304-3354 Tube Assembly (l) with new o-rings.
14) Reassemble the clamp assembly (m) between the 304-3354 and 371-2894 Tube Assemblies.