Bearing Replacement - MASSEY FERGUSON 9125 Workshop Service Manual

General Information

BEARING REPLACEMENT

FIG. 11: The bearing (1) is held in position on the shaft
by a locking collar (2). The locking collar has an eccentric
counterbore that engages the eccentric end of the
bearing inner race (3) when the locking collar is rotated.
The locking collar is rotated by hitting a drift punch
inserted in the drift pin hole (4). The assembly grips the
shaft tightly with a positive locking action that increases
with use.
A set screw (5) in the locking collar engages the shaft
when tightened and applies additional locking pressure.
To replace a bearing:
• Loosen the set screw in the locking collar.
• Loosen the locking collar with a drift punch. Rotate
the locking collar opposite the direction of normal
shaft rotation until free from the bearing. Remove the
locking collar from the bearing and shaft.
• Support the shaft and remove the bolts fastening the
bearing flanges to the structure. Slide the bearing
and the bearing flanges from the shaft.
NOTE: Removing paint and corrosion from the shaft will
make removal easier.
• Put the new bearing and bearing flanges on the shaft.
Make sure the bearing inner race is facing the correct
direction. Install the bolts that fasten the bearing
flanges to the structure. Make sure the bearing is
straight within the bearing flanges. Tighten the bolts
evenly.
• Put the locking collar on the shaft and push the
locking collar against the bearing inner race. Rotate
the locking collar in the direction of normal shaft
rotation until tightly engaged. Tighten the locking
collar with a drift punch.
NOTE: Always tighten the locking collar in the direction of
normal shaft rotation.
• Tighten the set screw in the locking collar. Use the
following chart for the set screw torque.
Set Screw Size
1/4-20
5/16-18
3/8-16
7/16-14
02-12
Nm lbf in
4.8 78
18 156
31 273
49 428
3
1
4
FIG. 11
5
2
L97A-0297
4283389M1