AXLE AS-REAR DRIVE 9R6693 - Caterpillar

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.
This Program must be administered as soon as possible. When reporting the repair, use "PI3866" as the Part Number, "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 "PI3866" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.
Completion Date
September 30, 1996Termination Date
March 31, 1997Problem
The Fisher G300 Series Gas Pressure Regulator used on G3406 Gas Engines may have difficulty with the retention of the vent flapper assembly. The staking operation, that retains the flapper assembly in the regulator case, was not complete. If the flapper valve should come loose and fall on top of the diaphragm, the engine will continue to run but can be erratic.
Affected Product
Model & Identification Number
3406 (4FD1043, 4FD1044, 4FD1061, 4FD1062, 4FD1065-1067, 4FD1070, 4FD1072 , 4FD1073, 4FD1075, 4FD1077-1081, 4FD1084-1089, 4FD1095-1111 , 4FD1113-1120, 4FD1122, 4FD1124-1126, 4FD1130, 4FD1140-1142 )
Parts Needed
1 - G300 Series Gas Pressure RegulatorAction Required
Contact Dennis Cheney at phone number (317) 448-5964 or email CHENEDL to get the replacement regulator. The regulators will be direct shipped via UPS. Inside each box will be the instructions required to remove the old regulator and install the new regulator. The old regulator will need to be returned to Fisher Controls for final disposition. A mailing label will be enclosed for your convenience.
Fisher Controls
C/O Cornerstone Controls Inc.
7251 E. Kemper Road
Cincinnati, Ohio 45249
Attention: Chuck Lallathin
Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification.
Service Claim Allowances
This is a 1-hour job.
Parts Disposition
Return the old regulator to Fisher Controls for final disposition. A mailing label will be enclosed for your convenience.
Fisher Controls
C/O Cornerstone Controls Inc.
7251 E. Kemper Road
Cincinnati, Ohio 45249
Attention: Chuck Lallathin
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