Model G0449/G0450 (Mfd. Since 8/13)
-39-
7. Remove any metal or abrasives trapped in
the bearing grease groove and grease port
(see
Figure 49), or contaminants will be
pumped into the new bearing when you lubri-
cate it, causing bearing failure.
Figure 49. Typical bearing-bloock grease groove
and grease port.
Bearing Housing Grease Groove
Grease
Port
8. Clean and inspect the bearing-housing for
cracks, 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 wobbles
inside of the bearing housing, replace the
bearing housing (
Figure 48).
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.
Figure 50. Key bearing parts
Bearing
Grease Port
Hub
Set
Screw
Bearing
Race
Guide Pin
9. Insert the new bearing into the bearing hous-
ing so the set screws and hub are on the
same side as the grease fitting on the bearing
housing (
Figures 46 and 50).
10. Slide (DO NOT hammer) the bearing housing
and bearing onto the drum shaft.
11. Lower the drum and pillow bearing onto the
mounting studs, and install the flat washers
and the nuts. Tighten the nuts in an alternat-
ing pattern until snug.
12. Install and tighten the set screws.
13. Wipe the grease fitting clean, and lubricate
the bearing with just enough grease to slight-
ly seep from the dust seal and wipe clean
(these bearings are not pre-lubricated). DO
NOT over-grease.
14. Repeat Steps 3—13 on all other bearings
that need replacement. Always replace both
bearings on the same drum.
15. Adjust the drums and pressure rollers as out-
lined on
Pages 41 & 46.
Summary of Contents for G0449
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