PRIORITY - A NEW ROTATING GROUP FOR THE MAIN AND SWING PUMPS NEEDS TO BE INSTALLED ON CERTAIN E300 AND EL300 EXCAVATORS - PI3 497 - THIS SL CANCELS AND REPLACES THE APRIL 1, 1990 SL - PS0444 - MAILED US AND CANADA, CACO, COFA, CFEL Caterpillar

PRIORITY - A NEW ROTATING GROUP FOR THE MAIN AND SWING PUMPS NEEDS TO BE INSTALLED ON CERTAIN E300 AND EL300 EXCAVATORS - PI3 497 - THIS SL CANCELS AND REPLACES THE APRIL 1, 1990 SL - PS0444 - MAILED US AND CANADA, CACO, COFA, CFEL

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Caterpillar: Confidential Yellow

PRIORITY - A NEW ROTATING GROUP FOR THE MAIN AND SWING PUMPS NEEDS TO BE INSTALLED ON CERTAIN E300 AND EL300 EXCAVATORS - PI3 497 - THIS SL CANCELS AND REPLACES THE APRIL 1, 1990 SL - PS0444 - MAILED US AND CANADA, CACO, COFA, 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.


U-226
A-158
AU-143
E-136
PRIORITY
5070, 5473, 5050  PI3497
NOTE: This Service Letter cancels and replaces the April 1, 1990
Service Letter - PS0444.
COMPLETION DATE

Termination Date

May 31, 1991  November 30, 1991

Problem

A new rotating group for the main and swing pumps needs to be installed on
certain E300 and EL300 Excavators. The new rotating group has a longer
service life.

Affected Product

Model Identification Number
E300 2CF1-241, 243, 244, 246-268
EL300 4NF1-206, 209, 211-309, 312-351, 353, 354, 356-383, 385-387, 389-505,
507-514, 516-557, 559-561, 563-566, 568-574, 576-584, 586-
594, 597-599, 601-608, 610-613, 615-621, 623-640, 642-652,
654-658, 660-665, 667-685, 687-689, 691-699, 701-713, 715-
729, 731-735, 737-760, 763-812, 815-829, 831-835, 837, 838,
840-855

Parts Needed

Dealers will need to order parts for this Program.
3 - 861178 Rotary Group-Kit
5 - 931351 Seal O-ring
1 - 951613 Seal
1 - 951701 Seal
2 - 951706 Seal
3 - 951720 Seal
3 - 991194 Plate As.*
* The new 991194 Plate Assemblies have a manganese phosphate coating.

Action Required

Remove the existing rotary groups and replace them with new 861178 Rotary
Group-Kits and 991194 Plate Assemblies. See the Illustrations for parts
locations.
****** IMAGE: SEBE4446.00001.001
CAPTION: Location of 931351 Seals
****** IMAGE: SEBE4446.00001.002
CAPTION: Location of Seals
****** IMAGE: SEBE4446.00001.003
CAPTION: Exploded View Of Pump

Owner Notification

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

Service Claim Allowances

Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
(D/N) (Sell)  (C/L) (Sell)
100% 20 0 0  0 0
NOTE: This is a 20-hour job.

Parts Disposition

Any parts removed (with the exception of cores used for Caterpillar
Remanufactured parts) can be rendered useless and scrapped immediately upon
completion of the repair.
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 - A New Rotating Group For The Main And Swing Pumps
Needs To Be Installed On Certain E300 And EL300
Excavators
MODELS INVOLVED - E300 And EL300 Excavators
Dear Caterpillar Product Owner:
A new rotating group for the main and swing pump needs to be installed 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
twenty hours.
We regret the inconvenience this may cause you, but urge you to have this
service performed as soon as possible to prevent unscheduled downtime.
Caterpillar Inc.
Identification #(s)
Attached to November 10, 1990 Service Letter