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Copyright Meritor, Inc., 2022
MM-0861 / Revised 06-22
Page 61
Printed in USA
7 Assembly
4006924d
NEEDLE
BEARING
ASSEMBLY
Figure 7.3
6. Install the helical gear onto the shaft. The helical gear is a slip
fit gear.
7. Remove the shaft from the holding fixture and install it into a
press. Correctly support the shaft in the press.
8. Use tool number 905473-92 to install the bearing onto the top
of the output shaft with the small tapered end UP. Use a press
and sleeve to push the bearing DOWN onto the output shaft
until it is fully seated. Refer to page 109 for the tool drawing.
Press down only on the inner race of the bearing during
installation. Use a 0.002” shim or feeler gauge to verify the
bearing is correctly seated. Figure 7.4.
4006926b
SLEEVE,
TOOL
905473-92
HELICAL
GEAR
BEARING
PRESS
Figure 7.4
DANGER
Follow all safety guidelines and instructions provided by the lifting
device manufacturer. Inspect lifting straps to ensure they are not
damaged. NEVER subject lifting straps to shocks or drop-loading.
Death or serious personal injury and damage to components can
result.
9. Remove the output shaft from the press and reinstall it into the
holding fixture. Refer to tool "Holding Fixture (905473-140)" on
page 108. Use an appropriate lifting device to lift the shaft.
10. Lubricate the output shaft threads with SAE Grade full-
synthetic 40W or 50W oil, Meritor specification O-81.
11. Install the washer and the locknut onto the shaft. Tighten the
locknut to 700-900 lb-ft (949-1220 Nm). Figure 7.5.
HOLDING FIXTURE
TOOL 905473-140
LOCKNUT
4006927a
WASHER
Figure 7.5
Assemble the Single Idler Gear Subassembly
(MTC-4213X Only)
1. Install the shaft assembly into a press and support it correctly
with the forward end facing UP.
2. Place the bearing onto the forward end of the shaft assembly.
Use a sleeve, "Bearing Cone Driver (905473-82)" on page
111, and press to push the forward bearing cone DOWN
until it is fully seated. Only press on the inner race of the
bearing cone. Use a 0.002” shim or feeler gauge to ensure
the bearing cone is correctly seated.
3. Rotate the shaft so the rear half of the shaft is facing UP. Use
a sleeve, tool number 905473-92, and press to push the
rear bearing cone DOWN until it is fully seated. Refer to page
109 for the tool drawing. Only press on the inner race of the
bearing cone. Use a 0.002” shim or feeler gauge to ensure
the bearing cone is correctly seated.
Assemble the Rear Output Shaft Subassembly
(MTC-4208X/XP/XL/XLEV/XLEC and MTC-4210X/XP/
XL/XLEV/XLEC Only)
1. Install the shaft assembly into a press and support it correctly.
2. Place the bearing cone onto the end of the shaft assembly
with the appropriate end facing UP. Use a sleeve, "Bearing
Cone Driver (905473-82)" on page 111, and press to push
the bearing cone DOWN until it is fully seated. Only press
on the inner race of the bearing cone. Use a 0.002” shim or
feeler gauge to ensure the bearing cone is correctly seated.
3. Turn the shaft assembly over and install the bearing cone on
the other end using Steps 1-2.