Alamo RHINO FX21 - Manual (Page 146)

MAINTENANCE
FX17/FX21 02/11 Maintenance Section 5-6
© 2011 Alamo Group Inc.
MAINTENANCE
7. Reinstall grease fitting to housing. Grease Fitting must have locking pin installed which inserts into grease
hole in bearing when installed. If Grease Fitting does not have a pin, order a new grease fitting. Grease
fitting must be tight and seated in grease hole in bearing to prevent bearing from rotating in housing.
8. Attach roller bearing and housing assembly to bracket with seal between housing and bracket.
9. Slide bearing and bracket assemblies on each end of roller.
10. Check bearing for proper installation in housing by gently rocking bearing and bracket assembly in end of
roller. Play should be slight to none at all.
11. Install roller and bearing and bracket assemblies on mower.
12. Lubricate roller bearing until lubricant can be seen coming out between roller and bearing housing.
CUTTERSHAFT BEARING REPLACEMENT
OUTBOARD (DRIVE) BEARING
For Rear Head Non Driveside Bearing and Wing Inboard Bearing Replacement:
1. Lift cutter unit to maximum horizontal height;
then, securely support ends of cutterhousing.
2. Remove enough knives to place a floor jack
under center of cuttershaft.
3. Securely support cuttershaft.
NOTE: The cuttershaft must remain supported
while changing bearings.
4. Remove outboard fender-outboard bearings or
wing drivelines-wing inboard bearings. Loosen
setscrews securing bearing inner race to
cuttershaft. Use special 3/16 hex allen wrench
which has been shortened to reach into
bearings.
5. Remove fasteners securing bearing and
housing assembly to cutterhousing; then
remove bearing and housing assembly.
NOTE: There are two tapped holes in the housing
which can be used to pull bearing and housing
assembly out by using special tool No. 701627.
6. Using a jack to hold up cuttershaft in proper
alignment, install bearing and housing
assembly to cutter unit and make certain that
bearing setscrew is located in keyway on
cuttershaft. Grease bearing and install cap over
fitting.
NOTE: Make sure grease is getting into bearing.
7. Replace outboard fender or wing driveline. Make sure to time wing drivelines properly before reconnecting.
NOTE: Grease Lube Hole in bearing outer race must align with lube hole in housing. Inboard or Drive Side
Bearing cannot be used as Outboard Bearing.