PRODUCT SUPPORT PROGRAM FOR UPDATING THE PLANETARY ON CERTAIN TH48FT-E80 OIL FIELD TRANSMISSIONS Caterpillar

PRODUCT SUPPORT PROGRAM FOR UPDATING THE PLANETARY ON CERTAIN TH48FT-E80 OIL FIELD TRANSMISSIONS

Usage:

SEBE9599

June 8, 2006
U-157

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*before or* *after failure*	PRODUCT SUPPORT PROGRAM FOR UPDATING THE PLANETARY ON CERTAIN TH48FT-E80 OIL FIELD TRANSMISSIONS
3100 3001 3066 3115 5073 3160 3030		PS42064

NOTE: This Program can 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 "PS42064" 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.

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.

Termination Date

June 30, 2009

PROBLEM

The planetary can be updated on certain TH48FT-E80 Oil Field Transmissions to improve the service life and serviceability of the transmission. The improvements include installation of clutch hub with machined areas for pins to be installed to secure the retaining ring and updated transmission input speed sensor mounting location.

AFFECTED PRODUCT

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Model	Identification Number
TH48FT	FRT00004-61

PARTS NEEDED

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Quantity	Part Number	Description
1	3E4352	WASHER-HARD
1	7G8121	RING-LOCK
1	2H3755	BOLT
6	3S2708	PIN-SPRING
1	7X2627	RING-RETAINI
1	1171385	SEAL-O-RING
1	2016615	SENSOR GP-SP
1	2750690	CAGE AS-BEAR
1	2824960	GEAR-RING
1	2864461	HARNESS AS.
1	2613107	HUB-CLUTCH

ACTION REQUIRED

See the attached procedure.

SERVICE CLAIM ALLOWANCES

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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
0-4000 Hours 0-Up Months	100%	30	0	0	0	0
NOTE: This is a 30-hour job.

PARTS DISPOSITION

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

Attach. (1-Rework Procedure)

REWORK PROCEDURE

TRANSMISSION PLANETARY REWORK PROCEDURE

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New Part Number	Description	Old Part Number	Qty
275-0690	Cage As-Bearing	270-9582	1
282-4960	Gear-Ring	261-3094	1
7G-8121	Ring-Lock	091-5013	1
201-6515	Sensor Group-SP	9X-5392	1
286-4461	Harness As	286-4460	1
2H-3755	Bolt	N/A	1
3E-4352	Washer-Hard	N/A	1
117-1385	Seal-O-Ring	N/A	1
261-3107	Hub-Clutch	Same (stock rework)	1
7X-2627	Ring-Retaining	Same as production	1
3S-2708	Pin-Spring	N/A	6

Clean and remove transmission from trailer as normal. Refer to the disassembly and assembly guide for the transmission (RENR9664-00) for the following sections:

1. Transmission / Torque Converter Separate

2. Gear Pump (Transmission / Torque Converter) Remove

3. Transmission Planetary Remove

Begin the transmission planetary disassembly per the published instructions from steps 1 through 10.

Complete steps 12 and 13 to separate the old cage assembly from the inner hub. Remove all loose parts so that the transmission can be flipped around and safely set on the input end of the transmission per step 24 of the published procedure.

Complete steps 24 through 27 to begin disassembly of the output end of the transmission. Complete steps 29 through 33 as well.

Complete steps 35 and 36, replacing the hub with the modified hub and replace the retaining ring 7X-2627.

Install roll pins 3S-2708 into hub in 6 locations until top of the pin flush to the top of the ring gear. These pins will prevent the retaining ring 7X-2627 from dislocating during operation.

Begin assembly of the remaining portion of the transmission output per the published instructions beginning with step 46 through step 57 when the output end of the transmission is complete.

Beginning with step 58 where the transmission is rotated to have the input end up, begin assembly where disassembly stopped.

Use new housing assembly 275-0690 for step 66 and on as the bearing and retainer are installed. Proceed to 71 installing the new ring gear 282-4960. In the new housing you will find a space for the "bolt and go" speed sensor 201-6615. Complete the transmission planetary assembly.

Inside the transmission case, remove the existing speed sensor bracket part number 265-6787 and discard.

Install planetary into transmission case and join transmission and torque converter assemblies per published instructions using the new speed sensor harness 286-4461 and install pump group to transmission / torque converter.

Test transmission per published specification REHS2828. Following successful completion of the test procedure the transmission into trailer and operate to temperature. Inspect for leaks or any other sign of problems with the transmission.