PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN 183-9511 SPIDER GEARS AND 273-0178 SIDE GEARS FROM DEALER PARTS STOCK Caterpillar


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PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN 183-9511 SPIDER GEARS AND 273-0178 SIDE GEARS FROM DEALER PARTS STOCK [UEBE0292]
SERVICE EQUIPMENT AND SUPPLIES
PARTS STOCK, ORDERING & RETURN
PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN 183-9511 SPIDER GEARS AND 273-0178 SIDE GEARS FROM DEALER PARTS STOCK
UEBE0292-03

12Feb2020
(Revised 28Feb2020)


U-64
A-49
D-60
O-59

 

Parts stock action only

  
  

PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN 183-9511 SPIDER GEARS AND 273-0178 SIDE GEARS FROM DEALER PARTS STOCK

7552 7750
PI70795
NOTE:

AVSpare’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to AVSpare.

NOTE:

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.

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 AVSpare product analyst.

 
NOTE:

This Revised Service Letter replaces the 12Feb2020 (Revised 26Feb2020) Service Letter. Changes have been made to the Action Required.


TERMINATION DATE

31May2020

PROBLEM

Certain 183-9511 Spider Gears and 273-0178 Side Gears, for use in 797, 797B, and 797F Off-Highway Truck Differentials, may be incorrectly machined and lead to a premature failure. The gears (if assembled) will lead to an incorrect backlash and rotating torque specification, which can cause a low hour differential failure.

ACTION REQUIRED

Inspect dealer stock of the 183-9511 Spider Gears and 273-0178 Side Gears to confirm the supplier code markings scribed on the side of the gear. Any 183-9511 Spider Gear marked as 183-9511 U AON AVS is suspect and needs to be removed from dealer stock. Any other gear marking codes are not suspect and do not need to be removed from dealer stock. Please reference image 1 for the suspect gear markings for the 183-9511 Spider Gear.
An additional visual indicator of a suspect 183-9511 Spider Gear, is a unique chamfer on the convex side of each gear teeth. This added chamfer will vary in width from gear to gear. Please reference image 2 for the chamfer identification.
Please reference image 3 and 4 for the gear markings for the suspect 273-0178 Side Gear. The U AOU code and serial number (marked opposite side of the part number) can be used to identify suspect 273-0178 Gears.
Image1
Image2
Image3
Image4

SERVICE CLAIM ALLOWANCES

Submit one claim for all parts removed from dealer parts stock.

PARTS DISPOSITION

NACD:

Hold all 183-9511 and 273-0178 Gears for a Parts Return Request (PRR). A Parts Return Request (PRR) will be issued to you through the Send-It-Back process after the claim is submitted. Make sure to list the service letter program number on the packing slip and include the closed work order paperwork. Handle all other parts in accordance with your Warranty Bulletin on warranty parts handling.


EAME, LACD, and APD:

Hold all 183-9511 and 273-0178 Gears for 30 days for a possible Parts Return Request (PRR). Make sure to list the service letter program number on the packing slip and include the closed work order paperwork. Handle all other parts in accordance with your Warranty Bulletin on warranty parts handling.

If a Parts Return Request (PRR) is not issued to you after 30 days through the Send-It-Back process, handle the parts in accordance with your warranty bulletin on warranty parts handling.
 

Information System:

PRODUCT SUPPORT PROGRAM FOR REPLACING FRONT BRAKE COOLING HOSES ON CERTAIN 797F OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR REWORKING THE STEERING CYLINDERS ON CERTAIN 793F COMMAND AND COMMAND READY OFF-HIGHWAY TRUCKS AT PCR
PRODUCT SUPPORT PROGRAM FOR UPDATING THE CHASSIS ELECTRICAL COMPONENTS AND CONNECTORS ON CERTAIN 797F OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR INSTALLING A SECONDARY FUEL FILTER SUPPORT BRACKET ON CERTAIN 797F OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE PUMP CONTROL VALVE ON CERTAIN 986K WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE ENGINE ECM ON CERTAIN 797F OFF-HIGHWAY TRUCKS WITH HIGH ALTITUDE ENGINE ARRANGEMENT
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY REMOVING CERTAIN 471-6029 DEF INJECTOR AND MOUNTING GROUPS FROM DEALER PARTS STOCK
PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN TUBES AND LINES FROM DEALER PARTS STOCK
PRODUCT SUPPORT PROGRAM FOR REPAIRING THE TRANSMISSION OUTPUT TRANSFER GEAR GROUP ON CERTAIN 982M WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING WORN CLUTCHES ON CERTAIN 12K, 120K, 120K 2, 120K 2 OEM, 140K, 140K 2, AND 160K MOTOR GRADERS
PRODUCT SUPPORT PROGRAM FOR RE-SEALING THE REAR SUSPENSION CYLINDERS ON CERTAIN 794 AC, 796 AC, AND 798 AC OFF HIGHWAY TRUCKS
PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE BACKUP ALARM ON CERTAIN RM-300 RECLAIMER-MIXERS
PRODUCT SUPPORT PROGRAM FOR INSTALLING IMPROVED POWER TRAIN WIRING GROUP GUARDING ON CERTAIN 797F OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE FUEL TRANSFER PUMP AND REROUTING FUEL LINES ON CERTAIN 797F OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR REWORKING A LOOSE BOLT ON THE STEERING AXLE ON CERTAIN MH3022, MH3024, AND MH3026 MATERIAL HANDLERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HOIST AND TRANSMISSION SHIFT CONTROL ASSEMBLY ON CERTAIN 797F OFF-HIGHWAY TRUCKS
PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE BACKUP ALARM ON CERTAIN AP1055F, AP1000F, AP655F, AND AP600F ASPHALT PAVERS
PRODUCT SUPPORT PROGRAM FOR REPLACING PROPEL CONTROL LEVERS ON CERTAIN PM620, PM622, PM820, PM822, AND PM825 COLD PLANERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE OIL PAN ON CERTAIN 797 AND 797B OFF-HIGHWAY TRUCKS EQUIPPED WITH A 3524B ENGINE
PRODUCT SUPPORT PROGRAM FOR REMOVING THE RETARDER LEVER ON CERTAIN 745 ARTICULATED TRUCKS
PRODUCT SUPPORT PROGRAM FOR REPAIRING CLUTCH 5 FAILURES ON CERTAIN 24 MOTOR GRADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING CONVEYOR CONTROL LEVERS ON CERTAIN PM620, PM622, PM820, PM822, AND PM825 COLD PLANERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE CENTER TUBE ASSEMBLY ON CERTAIN 793F AND 793F CMD OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE DEF PUMP ON CERTAIN CATERPILLAR PRODUCTS