Maintenance
BETTCHER
Industries, Inc.
Manual No. 185321
June 15, 2018
Maintenance
Operation and Maintenance Manual
5-25
Removal of the Drive Shaft Bearings
(See Drive Assembly.)
Remove the drive assembly and drive motor.
Place two ¼-20 x 1 inch screws in the shaft holes that were used by the blade holder base, and
screw them in about 5 turns. Use a long handled screwdriver or rod to grip between the bolts
while loosening the nut with a 3/4 inch hex socket wrench.
Note these threads are LEFT
HANDED, turn CLOCKWISE TO LOOSEN
.
Remove the nut and lock washer. Place a screwdriver between the standoffs so the blade is held
tightly between two teeth of the driven sprocket. With the long handled screwdriver or rod still
between the bolts, rotate the shaft CLOCKWISE while the driven sprocket is held by the
screwdriver, to loosen the driven sprocket. Once the driven sprocket is loose, it can be unscrewed
and the wave spring, preload spacer, lower cone bearing and drive shaft with bearing, can be
removed from the housing.
Clean the bearings thoroughly with solvent and inspect for damage. If either bearing shows
damage, the bearings, drive shaft and housing should all be replaced.
Wipe the housing and bearing outer races clean. Pack the bearings with a general bearing grease.
Insert the shaft with bearing into the housing. From the other end, insert first the lower cone
bearing, then the preload spacer with the shoulder facing outward. Then install the wave spring.
Hold the assembly vertical with the wave spring facing up, and center it over the shoulder on the
spacer.
Install the driven sprocket, turning it COUNTER CLOCKWISE.
Install the lock washer and nut on the drive shaft and use the 3/4 inch hex socket wrench to
tighten the driven shaft while supporting the other end of the shaft with the two ¼-20 x 1 inch
screws in the shaft holes.
Install turntable motor, drive assembly, and rear panel.
Removing the Locknut
Removing the Pulley
COMPANY
CONFIDENTIAL
Содержание AutoEdge
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