PRIORITY - PARTS STOCK ACTION NEEDED - THE ELECTRONIC CONTROL GROUP FOR THE CMS PANEL NEEDS TO BE REPLACED - THE DIAGNOSTIC CON NECTOR WIRING ON THE STARTER NEEDS TO BE CHANGED ON CERTAIN 966F WHEEL LOADERS - PI3522 - MAILED US AND CANADA, CACO, CFEL Caterpillar

PRIORITY - PARTS STOCK ACTION NEEDED - THE ELECTRONIC CONTROL GROUP FOR THE CMS PANEL NEEDS TO BE REPLACED - THE DIAGNOSTIC CON NECTOR WIRING ON THE STARTER NEEDS TO BE CHANGED ON CERTAIN 966F WHEEL LOADERS - PI3522 - MAILED US AND CANADA, CACO, CFEL

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Caterpillar: Confidential Yellow

PRIORITY - PARTS STOCK ACTION NEEDED - THE ELECTRONIC CONTROL GROUP FOR THE CMS PANEL NEEDS TO BE REPLACED - THE DIAGNOSTIC CON NECTOR WIRING ON THE STARTER NEEDS TO BE CHANGED ON CERTAIN 966F WHEEL LOADERS - PI3522 - MAILED US AND CANADA, CACO, CFEL

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.


April 27, 1991
U-84
A-59
E-52
PRIORITY  THE ELECTRONIC CONTROL GROUP FOR THE CMS
PARTS STOCK ACTION NEEDED PANEL NEEDS TO BE REPLACED. THE DIAGNOSTIC
CONNECTOR WIRING ON THE STARTER NEEDS TO
BE CHANGED ON CERTAIN 966F WHEEL LOADERS
7490 PI3522
COMPLETION DATE

Termination Date

October 31, 1991 April 30, 1992

Problem

The existing electronic control group for the CMS (Computerized Monitoring
System) panel needs to be changed to monitor hydraulic tank oil levels.
The diagnostic connector wiring on the starter also needs to be changed on
certain 966F Wheel Loaders.

Affected Product

Model Identification Number
966F 4YG196-199, 201, 203, 205, 207-214, 216-234,
236-246, 250, 253-258, 260-266, 268-271, 273,
275-276, 278-286, 288-304, 306-307, 309-316,
318, 320-321, 323-336

Parts Needed

Dealers will need to order parts for this Program.
1 - 0R5999 Electronic Control Group

Action Required

***** Parts Stock *****
Remove all 7X1360 and 9X0001 Electronic Control Groups from parts stock.
***** Affected Product *****
1. Remove existing 7X1360 or 9X0001 Electronic Control Group (CMS panel).
Replace the control group with an 0R5999 Electronic Control Group.
2. Identify 301-Bu wire on the upper starter solenoid post (BATT, 1/2"
stud). Move the wire to the other 1/2" stud (designated MTR),
connecting the solenoid output to the starter motor.

Owner Notification

U.S. and Canadian owners will receive the attached Owner Notification.

Service Claim Allowances

***** Parts Stock *****
Submit one claim for all 7X1360 and 9X0001 Electronic Control Groups removed
from parts stock.
***** Affected Product *****
Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
(D/N) (Sell)  (C/L) (Sell)
100% 1 0 0  0 0
NOTE: This is a 1-hour job

Parts Disposition

***** U.S. and Canadian Dealers *****
NOTE: Carefully package cores for return to Caterpillar to minimize
potential shipping damage.
Return all 7X1360 and 9X0001 Electronic Control Groups that are removed from
parts stock and the Affected Product, along with a copy of the claim to:
Caterpillar Inc.
Attn: Supplier Recovery - Electrical
Warehouse #4 Docks 7 thru 10
8201 N. University
Peoria, IL 61615
***** All Other Dealers *****
Handle the parts in accordance with your Warranty Bulletin on warranty parts
handling.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
Attach. (1-Owner Notification)
COPY OF

Owner Notification

 FOR U.S. AND CANADIAN OWNERS
XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999
PRIORITY - The Electronic Control Group For The CMS Panel Needs To Be
Replaced. The Diagnostic Connector Wiring On The Starter Needs To
Be Changed On Certain 966F Wheel Loaders.
MODELS INVOLVED - 966F Wheel Loaders
Dear Caterpillar Product Owner:
The existing electronic control group for the CMS (Computerized Monitoring
System) panel needs to be changed to monitor hydraulic tank oil levels.
The diagnostic connector wiring on the starter also needs to be changed on
the products listed below. The repair will be done at no cost to you.
Contact your local Caterpillar dealer immediately and schedule a time to have
this service performed. The repair time for this service is approximately
one hour.
We regret the inconvenience this may cause you, but urge you to have this
service performed as soon as possible.
Caterpillar Inc.
Identification #(s)
Attached to April 27, 1991 Service Letter