End Play Check & Adjustment - Meritor MTC-4208X Series Service Manual

End Play Check & Adjustment
Shim Pack Starting Thickness Requirements
End play must be checked and adjusted at all shaft positions before
fi nal assembly.
NOTE: Reuse the existing yoke nuts during end play preliminary mea-
surements. Install new yoke nuts only on fi nal assembly.
NOTE: Unless otherwise noted, all 29 fasteners must be installed and
tightened to the specifi ed torque prior to checking end plays.
Start with the following shim pack thicknesses to begin this process.
• MTC-4213X input shaft starting thickness must be equal to
or greater than 0.056".
• MTC-4213X upper output starting thickness is 0.039".
• MTC-4213X begins by setting the upper rear output end play
fi rst with a starting shim pack size of 0.039". Set the end
play to 0.002-0.004" (0.051-0.102 mm). After setting the
MTC-4213X upper rear output, rotate the transfer case and
set the input shaft end play to 0.002-0.004" (0.051-0.102
mm). All other MTC-4213X shaft end plays are 0.001-
0.005" (0.025-0.127 mm).
• MTC-4208X/XP/XL/XLEV & MTC-4210X/XP/XL/XLEV input
shaft initial starting shim pack thickness is 0.036".
• MTC-4208XP & MTC-4210XP upper rear output yoke does
not require an end play check.
For all other locations, determine the starting shim pack size by clean-
ing and measuring the thickness of shims removed from the respective
bearing cup location. Use new shims to obtain the same thickness as
the original shim pack. This will be the starting shim pack thickness to
use when setting the respective shaft's end play.
Printed in USA
MTC-4208X/XL/XP/XLEV & MTC-4210X/XL/ XP/XLEV
Lower Rear Output Shaft End Play
Determine the rear output shaft bearing end play before fi nal assembly.
Seals should not be installed until the end plays are set.
1. Install the rear output shaft yoke. Temporarily tighten the yoke nut
to 700-900 lb-ft (949-1220 N∙m).
2. Rotate the output shaft several times to seat the bearings.
3. Use a dial indicator to check output shaft bearing end play. Center
the dial indicator over the shaft.
NOTE: For accuracy, place a ball bearing into the recess found on
the end of the shaft, then place the tip of the dial indicator on top
of the ball bearing. Figure 6.22 and Figure 6.23.
MTC-4213X REAR OUTPUT YOKE SHOWN
Figure 6.22
Figure 6.23
Copyright Meritor, Inc., 2020
6 Assembly
4000209a
BALL BEARING
RECESSED AREA
SHAFT
4012328a
MM-0861 / Revised July 2020
Page 63