PSP FOR REPLACING THE HYDRAULIC PUMP ASSEMBLIES ON CERTAIN E70B EXCAVATORS (GRENOBLE PRODUCTION) - COSA LETTER NO. 6 - MAI LED COSA Caterpillar

December 4, 1992
COSA LETTER No. 6
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HYDRAULIC PUMP
ASSEMBLIES ON CERTAIN E70B EXCAVATORS (GRENOBLE PRODUCTION)
5070   PS0650
NOTE: This Program can only be administered after a failure
occurs. The decision whether to apply the program is
made by the dealer. When reporting the repair, use
"PS0650" as the Part Number Causing Incident, "7755" as
the Group Number, and "96" as the Warranty Claim
Description Code.

March 31, 1995

The bore in the hydraulic pumps for the 855587 Piston may wear
prematurely on certain E70B Excavators. The engine speed may drop
excessively when two pumps are at relief pressure.

Model Identification Number
E70B 6AK00086 - 219
HEBE1407

1 - 5I9126 Pump Assembly (equipped with blade)
2 - 7J9108 Seal
1 - 935369 Element
3 - 951579 O-ring
1 - 951585 Seal-o-ring
3 - 951592 Seal-o-ring
1 - 951698 O-ring
1 - 951705 Seal-o-ring

After a pump has failed, follow the procedures in the Service
Manual to replace the existing pump assembly with the new 5I9126
pump assembly. The new pump assembly has an improved piston to
reduce piston bore wear.
New Pump Replaces Former
Assembly Pump Assemblies
5I9126  5I6804 & 855787

Product AVSpare Dealer Suggested Customer Suggested
smu/age Parts Labor Hrs Parts Labor Hrs Parts Labor Hrs
whichever (D/N) (Cost) (C/L) (Sell)
comes
first
0-1500 100 % 5 0 5 0 0
0-18 mo
1501-2000 33 1/3% 2.5 0 2.5 50 % 5
19-24 mo
NOTE: This is a 10-hour job.

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