Woodstock W1773, W1772 owner manual That no obstructions prevent bearing lubrication, Pages 38

W1772/W1773 37" Drum Sander
5. Use a screwdriver to pry and rotate the bearing so it
			Mounting Flange
is horizontal to the bearing-housing mounting flang-
es, as shown in Figure 43.
6. Slide the bearing out of the bearing housing, as
shown in Figure 44.
7. Remove any metal or abrasives trapped in the bear-
ing grease groove and grease port (see Figure 45),
or contaminants will be pumped into the new bear-
ing when you lubricate it, causing bearing failure.
8. Clean and inspect the bearing-housing for cracks,	Figure 43. Bearing positioning for
		removal.
burrs, wear, and other damage; replace/repair as
required. The bearing race should rotate inside of
the bearing housing smoothly. If the race is loose or
	Bearing
wobbles inside of the bearing housing, replace the	Housing
bearing housing (Figure 44).
NOTICE
Make sure the bearing grease hole in the bearing lines
up with the grease groove in the bearing housing and
that no obstructions prevent bearing lubrication.
	Guide Pin

9.Insert the new bearing into the bearing housing so the set screws and hub are on the same side as the grease Zerk on the bearing housing (Figures 42 and

46).

10.Slide (DO NOT hammer) the bearing housing and bearing onto the drum shaft.

11.Lower the drum and pillow bearing onto the mount- ing studs, and install the flat washers and the nuts. Tighten the nuts in an alternating pattern until snug.

12.Install and tighten the set screws.

13.Wipe the Zerk fitting clean, and lubricate the bear- ing with just enough grease to slightly seep from the dust seal and wipe clean (these bearings are not pre- lubricated). DO NOT over-grease.

14.Repeat Steps 3—13on all other bearings that need replacement. Always replace both bearings on the same drum.

15.Adjust the drums and pressure rollers as outlined on

Pages 38 & 42.

-35-

Figure 44. Typical removal and installation

bearing positioning.

Grease

Port

Bearing Housing Grease Groove

Figure 45. Typical bearing-bloock grease

groove and grease port.

Bearing	Set	SERVICE
Grease Port	Screw
	Hub
Guide Pin	Bearing
	Race

Figure 46. Key bearing parts