Bearing Replacement - Grizzly G0449 Owner's Manual

Bearing
Replacement
The Model G0449/G0450 is designed for many
years of reliable service. But after long periods
of heavy use, it may be necessary to replace the
pillow bearings. Always replace both bearings on
the same drum.
Tools Needed:
Hex Wrench 3mm .............................................. 1
Wrench/Socket 17mm ....................................... 1
Flat Head Screwdriver ................................................ 1
Grease Gun ................................................................ 1
Grease ...................................................... (As needed)
To replace the pillow bearings:
1.
DISCONNECT POWER TO SANDER!
2.
Open the top cover, and remove the mount-
ing nuts, washers, and set screws shown in
Figure 44.
Mounting Nuts &
Washers
Grease Fitting
and Cap
Figure 44. Pillow bearing mounting nuts,
washers, and set screws.
NOTICE
Do not hammer on the bearing or housing,
as you WILL damage these precision parts.
-36-
3.
4.
5.
Qty
6.
Set Screws
Lift the drum and slide the bearing housing
and bearing from the drum shaft.
Clean and inspect the drum shaft for cracks,
burrs, wear, and other damage; replace/
repair as required.
Use a screwdriver to pry and rotate the bear-
ing so it is horizontal to the bearing-housing
mounting flanges, as shown in Figure 45.
Figure 45. Bearing positioning for removal.
Slide the bearing out of the bearing housing,
as shown in Figure 46.
Bearing
Housing
Guide Pin
Figure 46. Typical removal and installation
bearing positioning.
G0449/G0450 37" Drum Sander
Mounting Flange