FLEX-HONE 4C6329 - Caterpillar

22Nov2010
U-471
A-385
D-412
O-411
Parts stock action only
PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN 328-2035 VALVE GROUPS FROM DEALER PARTS STOCK
7750 PI70368
When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7751" as the Group Number, "56" as the Description Code.
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.
TERMINATION DATE
28Feb2011
PROBLEM
Certain 328-2035 Valve Groups may fail due to separation of the screen. If the screen separates from the valve, it may cause plugging or damage in the machine hydraulic system.
ACTION REQUIRED
Remove all 328-2035 Valve Groups marked "GP01" from dealer parts stock. Refer to the attached image for location of the marking on the valve gp manifold.
Image1
SERVICE CLAIM ALLOWANCES
Submit one claim for all parts removed from dealer parts stock.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.