Operator's Manual

3
1 2
3
Figure 7
1. Support bracket
2. Cutting unit tab
3. Capscrew and flange nut
12. Install the drive belt (Fig. 8) and adjust the belt tension
as follows:
A. Loosen the 2 capscrews securing the brush shaft
bearing housing to the pivot plate.
B. Install the belt onto the large and small pulleys.
C. Insert a screwdriver between the brush shaft bearing
housing and slotted bracket.
D. Pry the bearing housing rearward and tighten the
belt until there is 3/32 in. deflection midway
between the pulleys with a force of 1.8 lb. applied at
a right angle to the belt.
E. Tighten the 2 bearing housing mounting screws to
lock the adjustment.
1
3
4
2
Figure 8
1. Brush shaft bearing
housing
2. Bearing housing mounting
screws
3. Pivot plate slotted bracket
4. Drive belt
13. Adjust the axial movement of the brush shaft (Fig. 8) as
follows:
A. Loosen the set screw securing each locking collar to
the ends of the brush shaft.
B. Rotate each locking collar to unlock them from the
bearing.
C. On the pulley end of the shaft, pull the shaft inward
and rotate the collar forward (in the direction of
brush rotation) into the locking position. Use a
hammer and punch to ensure that the collar is tight.
D. Tighten the collar set screw to secure the
adjustment.
E. Repeat the procedure on the opposite end of the
shaft.
14. Pivot the brush assembly onto the roller. The brush
should lightly contact the entire length of the roller and
should be parallel to the roller.
15. While holding each hex extension with a wrench,
tighten each hex head screw to 60 ft.-lb. Tighten the
capscrew and flange nut securing the bearing
adjustment plate to the support bracket (Fig. 7). Make
sure that the brush to roller contact is not disturbed.
16. Lubricate the brush shaft bearing housing and small
drive pulley grease fittings with general purpose lithium
grease.
17. Install the belt cover to the drive assembly with a screw
and flat washer. Tighten the screw securely but do not
overtighten as damage to the cover may occur.
18. Repeat steps 1 thru 17 on the 2 remaining left-hand
brush drives.
Important Use caution if tipping the cutting unit onto
the roller brush. Roller brush misadjustment and/or damage
to the brush may occur, resulting in poor performance or a
ruined brush. After completion of the cutting unit
maintenance, check the brush-to-roller contact and reset it
as required.