THE SPHERICAL THRUST WASHER IN THE DIFFERENTIALS MAY FAIL ON CERTAIN 966F WHEEL LOADERS - COSA LETTER NO. 3 - PI3555

THE SPHERICAL THRUST WASHER IN THE DIFFERENTIALS MAY FAIL ON CERTAIN 966F WHEEL LOADERS - COSA LETTER NO. 3 - PI3555 - MAI LED COSA [HEBE1391]

AVSpare: Confidential Yellow

THE SPHERICAL THRUST WASHER IN THE DIFFERENTIALS MAY FAIL ON CERTAIN 966F WHEEL LOADERS - COSA LETTER NO. 3 - PI3555 - MAI LED COSA

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 AVSpare product analyst.


June 28, 1991
COSA LETTER NO. 3
THE SPHERICAL THRUST WASHER IN THE DIFFERENTIALS
MAY FAIL ON CERTAIN 966F WHEEL LOADERS
3258   PI3555
COMPLETION DATE

Termination Date

November 30, 1991  November 30, 1991

Problem

The 4V5397 Thrust Washers may fail on certain 966F due to
possible incorrect radius of the spherical washers in the
standard differentials.

Affected Product

Model Identification Number
966F  3XJ 1 to 825
(exception 3XJ189, 815-817 and all units
with the 4E3941 Limited Slip Differential)
6FJ 1 to 3.

Parts Needed

The following parts will be needed :
8 - 4V5397 Washer-Thrust.
NOTE : Do not use stock washers shipped from Grimbergen or
Leicester before April 6, 1991. If in doubt order
new 4V5397 Washers.
Washers from other sources are not affected.
HEBE1391
- 2 -

Action Required

Following the appropriate Service Manual Modules, remove
front and rear axles and disassemble the axles to access the
differentials.
Disassemble the differentials and replace the 4V5397
Washers. Refer to Service Manual Modules SENR 4771 and SENR
4768 for the correct procedure.
CAUTION WHEN REINSTALLING THE BRAKE PISTONS NOT TO DAMAGE
THE SEALS.
If any washers are found broken inspect related parts for
damage and replace as necessary. Additional parts should be
claimed in accordance with the warranty procedures.

Service Claim Allowances

AVSpare DLR suggested Customer suggested
Parts Labor Hrs Parts Labor Hrs Parts Labor Hrs
(D/N) (Sell)  (C/L) (Sell)
100 % 34 0 0 0 0
NOTE: This is a 34 hour job.

Parts Disposition

Save 4V5397 Washers until further notice.
PARTS STOCK
Remove any 4V5397 washers in the parts department that were
shipped from Grimbergen or Leicester before April 6, 1991.
Submit a separate claim making reference to this service
letter.
Washers from other sources are not affected.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS
POSSIBLE.