PRODUCT SUPPORT PROGRAM FOR REPLACING THE GOVERNOR MOTOR THAT MAY FAIL ON CERTAIN 311C, 312C, 314C, 315C, 318C, 320C AND 322C EXCAVATORS

Usage:

SEBE8560-02

November 6, 2003
(Revised December 2003)
D-224

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*After failure only*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE GOVERNOR MOTOR THAT MAY FAIL ON CERTAIN 311C, 312C, 314C, 315C, 318C, 320C AND 322C EXCAVATORS
1265		PS50723

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 "PS50723" as the Part number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "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.

NOTE: This Revised Service Letter replaces the November 6, 2003 (Revised November 2003) Service Letter. Changes have been made to the Parts Needed.

TERMINATION DATE

November 30, 2005

PROBLEM

The governor motor may fail and needs to be replaced on certain 311C, 312C, 314C, 315C, 318C, 320C and 322C Excavators. For machines under Group 1, the governor motor may burn out if the starter key is turned repetitively between "ON " and "OFF" positions and then left in the "ON", or the engine speed cannot be changed, or engine cannot be shut down. For machines under Group 2, the engine may not shut down even if the start key is in "OFF" position.

AFFECTED PRODUCT

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Model	Identification Number
*** Group 1 ***
311C U	CKE1056, 1057, 1062, 1096
312C	FDS155-180, 301-303
312C L	CBA821, 838, 866, 1247, 1305
314C LCR	PCA198, 204
315C L	CJC193, 194, 270, 275, 416, 524
318C L	MDY167, 173, 186, 202, 205 GPA176, 177, 181, 182
320C	AMC1120-1122, 1129-1220, 1223-1381, 1384-1388, 1391-1667, 1672-2215, 2220-2453 BPR2501-3394
320C L	ANB3395-3397, 3403-3405, 3408, 3409, 3444, 3511-3515, 3640-3674 BRX591-862 CCD378-577
320C U	CLM329, 330
320C LU	CLZ310, 311
322C	BLP213-217
322C L	BKM311-331

*** Group 2 ***
312C	FDS304
320C	AMC2454-2626, 2629, 2634-2684, 2707-2711, 2724, 2727, 2753-2737 BPR3395-3450
320C L	ANB3686 BRX863-892

PARTS NEEDED

For Group 1 machines only:

Either Column A or Column B governor motors can be used. However, for Column B governor motors, the machine ECM needs to be re-flashed with new flash file listed in Table 2.

Table 1

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Model	A Governor Motor		B Governor Motor
Model	Part NO	QTY	Part NO	QTY
311CU(L)	2277666	1	2218915	1
312C(L)	2277667	1	2218916	1
313C(L), 314C(L)	2277669	1	2218917	1
315C(L) & I	2277689	1	2218919	1
318C(L)	2277670	1	2218921	1
320C(L) & II	2277672	1	2218922	1
320CU(L)& II	2277673	1	2218924	1
321CLCR	2277674	1	2218926	1
322C(L)	-	1	2218925	1

For Group 1 and 2 machines only:

Table 2 (Machine ECM Software)

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Model	Version	New Part		Description	Former Part
Model	Version	Part No.	Qty	Description	Part No.	Qty
311CU	-	2277717	1	ECM Software	2115630	1
312C	STD	2277638	1	ECM Software	2218853	1
312C	H/A	2277584	1	ECM Software	-	-
313C	-	2277719	1	ECM Software	1958966	1
314C	STD	2277721	1	ECM Software	2218978	1
314C	H/A	2277723	1	ECM Software	2115643	1
318C	STD	2277634	1	ECM Software	2218778	1
318C	H/A	2277636	1	ECM Software	2218780	1
320C	STD	2277626	1	ECM Software	2115557	1
320C	H/A	2277630	1	ECM Software	2115561	1
321C	STD	2277632	1	ECM Software	2218789	1
321C	H/A	2277680	1	ECM Software	2218808	1

ACTION REQUIRED

See the attached Rework Procedure.

SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts	Labor Hrs	Parts	Labor Hrs	Parts	Labor Hrs
0-4000 / 0-24 months	100%	2	0	0	0	0
NOTE: This is a 2?hour job.

PARTS DISPOSITION

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

Attach. (1-Rework Procedure)

Rework Procedure

Refer to applicable Service Manual "Governor Actuator Replacement, Adjustment and Calibration.

***** Group 1 *****

Note: 315C does not need updated flash file.

Reference Table 2 for updated Flash File part numbers, and then download from SIS before commencing work on machine.
Stop the engine
Remove the failed governor control motor.
Install the new governor control motor. Reference Table 1 for correct part number. (See Illustration 1 for 320C).

Illustration 1

Make necessary adjustment. See Illustration 2 for 320C.

Illustration 2

Hook up ET and replace the ECM flash file with new one if Table 1 Column B governor motor is used. Skip this step if Column A governor motor is used.