PRODUCT SUPPORT PROGRAM FOR REPLACING THE SPEED SENSORS MOUNTED TO THE TRANSMISSION AND TORQUE CONVERTER ON CERTAIN D6R, AND D7R TRACK TYPE TRACTORS

Usage:

Caterpillar: Confidential Yellow

PRODUCT SUPPORT PROGRAM FOR REPLACING THE SPEED SENSORS MOUNTED TO THE TRANSMISSION AND TORQUE CONVERTER ON CERTAIN D6R, AND D7R TRACK TYPE TRACTORS

SEBE7273-03

April 21, 2000
(Revised September 2001)
U-123
A-98
AU-74
S-57
H-42
O-109

Show/hide table

*Before or* *after failure* *Parts stock action needed*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE SPEED SENSORS MOUNTED TO THE TRANSMISSION AND TORQUE CONVERTER ON CERTAIN D6R, AND D7R TRACK TYPE TRACTORS
3175		PS40126

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 "PS40126" as the Part number and "7755" as the Group Number. If adminstered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If adminstered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

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.

NOTE: This Revised Service Letter replaces the April 21, 2000 (Revised August 2001) Service Letter. Changes have been made to the Affected Product.

TERMINATION DATE

October 31, 2001

PROBLEM

Certain D6R and D7R Track Type Tractors with electronic transmission controls have experienced problems with speed sensors mounted to the transmission and torque converter. These problems can generate fault codes, can affect shift feel, and can prevent transmission calibration.

AFFECTED PRODUCT

Model Identification Number

D6R     2HM1-595
        4FM1-550
        8TM1-799
        9BM1-838
        4MN1-498, 500
        7KN1-445
        8LN1-521
        9PN1-1364, 1368-1370, 1374-1378, 1380, 1385, 1388, 1390-1392, 1394,
           1396-1400, 1402-1407, 1409
        2YN1-540
        3ZN1-720, 722, 723, 725, 727, 730-734, 736
        4HN1-434
        5LN1-2207, 2209-2220, 2222-2236, 2238-2242, 2244, 2246, 2248-2250, 2252,
           2254-2294, 2296-2298, 2300, 2301, 2304, 2305, 2307, 2312-2314,
           2318,-2320, 2323, 2324, 2326-2328, 2330, 2334-2348, 2353-2355,
           2361-2373, 2375-2379, 2381-2384, 2386-2388, 2390-2392, 2394, 2396,
           2398, 2399, 2405, 2409, 2415-2424, 2427
        6JN1-419
        8XN1-427
        9MN1-443
        4JR1-447
        4WR1-426
        4TR1-743
        5PR1-443
        5RR1-501
        6GR1-503
        6HR1-443
        6MR1-582
        7AR1-569
        7GR1-603
        7DR1-455
        9ZS1-475
        1RW1-431

D7R     2EN1-834, 837-848, 851-932, 934-936, 938-946, 949, 951-953, 955,
           960-962, 967-974, 987, 988, 991-995, 997-1000, 1002-1009, 1011, 1012,
           1014, 1015
        3DN1-346, 349-355
        9HM1-557
        2HR1-842, 844-847, 849-859, 861-870, 872-879
        3ZR1-740
        4SR1-558
        5MR1-425
        6ER1-248

PARTS NEEDED

5 - 1932550 SENSOR GP-SP

ACTION REQUIRED

***** Parts Stock *****

Remove all 3E8848 and 1804511 Sensors from parts stock.

***** Affected Product *****

See the attached Rework Procedure.

SERVICE CLAIM ALLOWANCES

***** Parts Stock *****

Submit one claim for all 3E8848 and 1804511 Sensors removed from parts stock.

***** Affected Product *****

Show/hide table

Product smu	Caterpillar		Dealer Suggested		Customer Suggested
Product smu	Parts (D/N)	Labor Hrs (Cost)	Parts	Labor Hrs	Parts (C/L)	Labor Hrs (Sell)
0-5000	100%	5.0	0	0	0	0
5001-8000	33.3%	1.0	0	0	50%	3.0
NOTE: This is a 5.0- hour job. NOTE: If affected product is equipped with a ripper or winch, an additional 2 hours will be allowed to remove and install the winch and lower the ripper. If the affected product is equipped with a drawbar, an additional 1 hours will be allowed to remove and install the drawbar. NOTE: If affected product is not equipped with a speed sensor access cover, an additional 1 hours will be allowed to access the speed sensors. Refer to Service Magazine Article dated 1997/12/08 for effected serial numbers.

PARTS DISPOSITION

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

Attach. (1 - Rework Procedure)

Rework Procedure

Speed sensor failure can result in the following fault causes:

FAULTS - 671FMI02, 672FMI02, 673FMI02, 674FMI02, or 675FMI02

NOTE: For D6R/D7R machines, the driveshaft is more easily accessed by removing the belly pan.

NOTE: Older D6R/D7R's do not have a speed sensor access cover. On these machines, the transmission case will need to be removed from the transmission cover to access the speed sensors.

NOTE: For ripper equipped machines, the ripper does not need to be removed. Instead, follow steps 1 through 4 below:

1. Remove ripper shanks to be able to lower ripper to lowest position out of the way

2. Lower ripper to lowest position at location that work is to be performed

3. Shut off engine and move ripper hydraulic control several times to relieve any residual pressure in ripper circuit

4. Disconnect ripper hose at back of tractor for hoist clearance to remove transmission. Cap off hoses to maintain system cleanliness.

PROCEDURE:

Remove the transmission according to the Transmission Disassembly and Assembly Service Manuals Listed Below:

D6R PS SENR8357
D6R DS SENR9496
D7R PS SENR8342
D7R DS SENR1706

Remove all 4 speed sensors mounted to the transmission.
Install 4 new speed sensors to the transmission.

Place transmission in horizontal position, with input and output shafts parallel to the floor.
Center the gear tooth in the sensor mounting hole
Screw the sensor in until the sensor tip touches the gear tooth
Counter rotate the sensor by 1/2 turn (180 degrees)
Carefully lock the sensor in this position by tightening the locknut to 25+/-5nm. When tightening the locknut, take care to prevent further sensor rotation.

Remove the speed sensor mounted to the torque converter.
Install a new speed sensor to the torque converter, following steps B through E indicated under #3 above.