Rear Axle - Half Shaft Removal/Tool Modification
Date: January 2001Order No.: P-SI-35.20/02, 58.20/116
Supersedes:
Group: 35, 58
SUBJECT:
MODEL 124.090/092/193/290
REMOVAL OF REAR AXLE HALF SHAFT FLANGE WITH DOUBLE ROW TAPERED
ROLLER BEARINGS
SAFETY MODIFICATION OF EXISTING SPECIAL TOOL
We would like to bring to your attention that on Model 124.090/092/193/290, a rear axle half shaft flange with double row tapered roller bearings (8, Figure 1) is installed. These bearings can only be pressed out of the rear half shaft flange with the wheel carrier removed from the vehicle first and then by the use of a stationary hydraulic press, to remove the double row tapered roller bearing itself.
These double row tapered roller bearings require extractor forces that are three times that of forces as required to pull the double row tapered ball bearings as used on other models. The puller special tool number 202 589 04 43 00 is not designed to handle such forces as a result, the removal of rear axle half shaft flange with the double row tapered roller bearings is not possible.
The special tool puller, part number 202 589 04 43 O0 is to be modified with a shear pin, which is installed at the pressure screw (010k, Figure 2) of the hydraulic press (010h, Figure 2). The shear pin will shear at a force of 40 Nm, thus preventing any further pressure build-up at the hydraulic press (010h, Figure 2), making the application (except on Model 124.090/092/193/290) of this tool safer (shear pin will shear) on all vehicles. The modified pressure screw (010k, Figure 2) is available with the shear pin as a spare part under the special tool part number: 202 589 04 43 11
Note:
Prior to removing the double row tapered ball bearing from the installed wheel carrier, review the document in WIS: AR35.20-P-0130B.
Special Tool