PRODUCT SUPPORT PROGRAM FOR CHECKING THE BOLT TORQUE FOR THE BEVEL GEAR BEARING CAGES ON CERTAIN D6R AND D7R TRACK TYPE TRACTORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR CHECKING THE BOLT TORQUE FOR THE BEVEL GEAR BEARING CAGES ON CERTAIN D6R AND D7R TRACK TYPE TRACTORS

Usage:

Caterpillar: Confidential Yellow

PRODUCT SUPPORT PROGRAM FOR CHECKING THE BOLT TORQUE FOR THE BEVEL GEAR BEARING CAGES ON CERTAIN D6R AND D7R TRACK TYPE TRACTORS SEBE7291-01

May 9, 2000

(Revised January 2001)
U-139
A-111
AU-83
S-65
H-49
O-125

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before or after failure	PRODUCT SUPPORT PROGRAM FOR CHECKING THE BOLT TORQUE FOR THE BEVEL GEAR BEARING CAGES ON CERTAIN D6R AND D7R TRACK TYPE TRACTORS
3159		PS40219

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 "PS40219" 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: Although this program can be administered as described above, it is to be implemented when the transmission is already removed. If it hasn't been done previously it must be done at the same time as the April 21, 2000 Service Letter PS40126 "Product Support Program For Replacing The Speed Sensors Mounted To The Transmission And Torque Converter On Certain D6R, And D7R Track Type Tractors."

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 Revised Service Letter replaces the May 9, 2000 Service Letter. Changes have been made to the Affected Product.

TERMINATION DATE

November 30, 2001

PROBLEM

Bolt torque relaxation has been observed on the 7B3235 Bolts (1/2 inch) which secure the bearing cages in the bevel gear groups of the D6R and D7R Track Type Tractors.

AFFECTED PRODUCT

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Model	Identification Number
D6R	2HM1-595
	4FM1-550
D6R LGP	8TM1-799
D6R XL	9BM1-838
	4MN1-498
D6R XR	7KN1-445
D6R	8LN1-521
D6R LGP	9PN1-1364, 1368-1370, 1374-1378, 1380, 1385, 1388, 1390-1392, 1394, 1396-1400, 1402-1407, 1409
D6R	2YN1-540
	3ZN1-720, 722-723, 725, 727, 730-734, 736
D6R LGP	4HN1-434
D6R	5LN1-2207, 2209-2220, 2222-2236, 2238-2242, 2224, 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, 02427
	6MR1-570
	7GR1-603
	9ZS1-475
	1RW1-431
D6R XR	6JN1-419
	8XN1-427
	9MN1-443
D6R XL	4JR1-447
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

PARTS NEEDED

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Quantity	Part Number	Description
0	n/a	n/a

ACTION REQUIRED

NOTE: This program can only be administered while completing PS40126 or if the transmission is removed for some other reason.

Illustration 1 - Location of Bolts 1

While the transmission is out the torque of the 7B3235 Bolts which secure the bearing cages in the bevel gear groups needs to be checked.

Measure the torque while tightening the bolts. If the bolts do not move with at torque of 110 N.m (80 ft-lb) they are tight.

If the bolts move below this torque, continue to tighten the bolts to a torque of 135 N.m (100 ft-lb).

When filing the claim enter either "LOW TORQUE" or "TORQUES OK" in the additional comments section of the claim.

SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
	Parts (D/N)	Labor Hrs (Cost)	Parts	Labor Hrs	Parts (C/L)	Labor Hrs (Sell)
0-5000 hours 0-36 Months	n/a	.5	0	0	0	0
NOTE: This is a .5 hour job.
NOTE: No time will be allowed to remove and install the transmission since it is to be implemented while the transmission is already removed.
NOTE: When filing the claim enter either "LOW TORQUE" or "TORQUES OK" in the additional comments section of the claim.