Meritor MTC-4208X Series, Service Manual, Page: 60 / 120

Copyright Meritor, Inc., 2020
MM-0861 / Revised July 2020
Page 56
Printed in USA
6 Assembly
5. Install the needle bearing onto the rear half of the output shaft
and lubricate it with a light coat of lithium-based grease, Meritor
specifi cation O-668. The needle bearing is a slip fi t assembly.
Figure 6.3.
Figure 6.3
4006925b
NEEDLE
BEARING
ASSEMBLY
6. Install the helical gear onto the shaft. The helical gear is a slip fi t
gear.
7. Remove the shaft from the holding fi xture 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 “Tools” on page 107 for tool
drawings. 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 6.4.
Figure 6.4
4006926b
SLEEVE,
TOOL
905473-92
HELICAL
GEAR
BEARING
PRESS
WARNING
TO AVOID SERIOUS PERSONAL INJURY AND DAMAGE TO
COMPONENTS, TAKE CARE WHEN USING LIFTING DEVICES
DURING SERVICE AND MAINTENANCE PROCEDURES. IN-
SPECT A LIFTING STRAP TO ENSURE IT IS NOT DAMAGED.
NEVER SUBJECT THE LIFTING STRAPS TO SHOCKS OR
DROP-LOADING.
9. Remove the output shaft from the press and reinstall it into the
holding fi xture. Refer to tool “Holding Fixture (905473-140)” on
page 107. 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 specifi cation O-81.
11. Install the washer and the locknut onto the shaft. Tighten the
locknut to 700-900 lb-ft (949-1220 N∙m). Figure 6.5.
Figure 6.5
HOLDING FIXTURE
TOOL 905473-140
LOCKNUT
4006927a
WASHER