TUBE AS 3374342 - Caterpillar

PROBLEM
The axle shafts need to be replaced on certain966G II and 972G II Wheel Loaders. Some axle shafts may have been forgedwith a structural defect that could reduce the durability of the piece.New axle shafts need to be installed.AFFECTED PRODUCT
Model Identification Number
966G II AXJ1738-1739, 1741,1747, 1750, 1752-1754, 1757, 1759
972G II AXC804, 806, 808PARTS NEEDED
Qty
Part Number Description
4 6B4852 Cone - Roller
4 1278910 Shaft - AxleACTION REQUIRED
Replace the 1278910 Axle Shafts.See the attached Rework Procedure.OWNER NOTIFICATION
U.S. and Canadian owners will receive the attachedOwner Notification.SERVICE CLAIM ALLOWANCES
Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
100% 30 0 0 0 0
This is a 30-hour job.PARTS DISPOSITION
Handle the parts in accordance with your WarrantyBulletin on warranty parts handling.MAKE EVERY EFFORT TO COMPLETE THIS PROGRAMAS SOON AS POSSIBLE.Attach. (1-Owner Notification)
(2-Rework Procedure)COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS
XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999PRIORITY - The Axle Shafts Need To Be ReplacedMODELS INVOLVED - 966G II and 972G II WheelLoadersDear Caterpillar Product Owner:The axle shafts need to be replaced on certain966G II and 972G II Wheel Loaders. Some axle shafts may have been forgedwith a structural defect that could reduce the durability of the piece.New axle shafts need to be installed on the products listed below. Youwill not be charged for the service performed.Contact your local Caterpillar dealer immediatelyto schedule this service. The dealer will advise you of the time requiredto complete this service. Please refer the dealer to their Service Letterdated October 14, 2004 when scheduling this service.We regret the inconvenience this may causeyou, but urge you to have this service performed as soon as possible toprevent unscheduled downtime.Caterpillar Inc.Identification #(s)Attached to October 14, 2004 Service LetterRework Procedure
Disconnect the drives lines, brake hoses (to beplugged), front axle temperature switch, guard and harness.
Illustration 1
Remove the rear and front axle (see RENR4365)
Remove the tires.
Purge the oil.
Disassemble the axle housing following RENR4365.
Illustration 2
Remove planetary carrier
Remove bearing nut.
Remove axle shaft from housing
Illustration 3 Illustration 4
Pay attention to handle the duo cone carefully
All the contact face have to be properly cleanup
Illustration 5
Axle housing assembly following RENR4365
Install new bearing cone on axle shaft.
Install Duo cone seal.
Assemble the housing on the axle shaft.
Install bearing nut as explained in the instruction.
Illustration 6
Install carrier
Illustration 7
Apply 6V6640 Silicone Sealant on the contact face
Illustration 8
Reinstall the housing assembly on then centerhousing. The torque for bolts is 300 N.m +/- 40 N.m.
Pre-fill axle with new oil (around 65 liters peraxle).
Touch up the flange of the axle housing.
Install tires.
Install rear ? front axle.
Connect the drives lines, brake hose, T° switch,guard and reconnect the harness to the switch.
Perform final oil level adjustment of the axle.
Check hydraulic oil level.