PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE BOLTS ON THE MAIN PUMP SUCTION PIPE COVER MOUNTING ON CERTAIN 322C, 322C L, 325C, 325C L, 330C AND 330C L EXCAVATORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE BOLTS ON THE MAIN PUMP SUCTION PIPE COVER MOUNTING ON CERTAIN 322C, 322C L, 325C, 325C L, 330C AND 330C L EXCAVATORS

Usage:

SEBE8680

March 4, 2004
D-44

Show/hide table

*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE BOLTS ON THE MAIN PUMP SUCTION PIPE COVER MOUNTING ON CERTAIN 322C, 322C L, 325C, 325C L, 330C AND 330C L EXCAVATORS
5057		PI30631

NOTE: This Program must be administered as soon as possible. When reporting the repair, use "PI30631" as the Part number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description Code. Exception: If the repair is done after failure, use "PI30631" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

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.

Show/hide table

COMPLETION DATE	TERMINATION DATE
September 30, 2004	March 31, 2005

PROBLEM

The bolts on the main pump suction pipe cover mounting need to be tightened on certain 322C, 322C L, 325C, 325C L, 330C and 330C L Excavators. The four (4) 8T4183 Bolts may become loosened due to improper tightening during assembly. This can cause aeration and lead to the failure of the pump.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
322C	DAA153-156
322C L	FED182-187
325C	BKW266
325C L	BMM405, 408, 409
330C	JAB626-633
330C L	KDD571-579, 582-585, 591, 592, 594

PARTS NEEDED

No parts are needed for this program.

ACTION REQUIRED

See the attached Rework Procedure.

SERVICE CLAIM ALLOWANCES

Show/hide table

Caterpillar		Dealer Suggested		Customer Suggested
Parts	Labor Hrs.	Parts	Labor Hrs.	Parts	Labor Hrs.
100%	1	0	0	0	0
NOTE: This is a 1-hour job.

PARTS DISPOSITION

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-Sample of Owner Notification)
(2-Rework Procedure)

SAMPLE OF NOTIFICATION

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - The Bolts On The Main Pump Suction Pipe Cover Mounting Need To Be Tightened

MODELS INVOLVED - 322C, 322C L, 325C, 325C L, 330C and 330C L Excavators

Dear Caterpillar Product Owner:

Contact your local Caterpillar dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service. Please refer the dealer to their Service Letter dated March 4, 2004 when scheduling this service.

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 March 4, 2004 Service Letter

Rework Procedure

It is necessary to rework by retightening based on following procedure for limited field machine.

Remove main pump under cover.
Tighten (4) 8T4183 Cover Bolts to 100 +/- 20 N.m using the tightening pattern shown in Illustration 2. Fastening order is No. 1 bolt, No. 3 bolt, No. 2 bolt and then No. 4 bolt.