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5.
Loosen the 2 bolts, washers, and nuts securing
the drive-bearing housing to the bearing-housing
mounting bracket
6.
Slide the high height-of-cut brush onto the brush
shaft
(Figure
22).
7.
Clamp the brush onto the shaft with the 2 J-bolts
and nuts previously removed
Important:
Insert the threaded end of the
J-bolts through the outer holes of the brush
shaft while hooking the curved ends of the
J-bolts into the inner holes.
8.
Torque the J-bolt locknuts to 2 to 3 N∙m (20 to
25 in-lb).
Figure 22
1. High height-of-cut brush
2. J-bolts
9.
Install the excluder seal and the non-drive
bearing housing onto the brush shaft
10.
Mount the non-drive bearing housing to the
bearing-housing mounting bracket with the 2
bolts, washers, and nuts previously removed.
Note:
Be careful not to knock the seal spring
off.
11.
Tighten the 2 bolts, washers, and nuts securing
the drive-bearing housing to the bearing-housing
mounting bracket.
(Figure
22).
(Figure
22).
3. Loosen these bolts.
4. Nuts
(Figure
Maintenance
•
Ensure that the brush is parallel to the roller with
1.5 mm (0.060 inch) clearance to light contact.
•
Grease the fittings every 50 hours and after every
washing.
•
When replacing a roller brush, torque the J-bolts
to 2 to 3 N∙m (20 to 25 in-lb).
•
When replacing the brush-shaft-driven pulley,
torque the nut to 36 to 45 N∙m (27 to 33 ft-lb).
•
When replacing the brush-drive pulley, apply 242
Loctite (blue) and torque the bolt to 47 to 54 N∙m
(35 to 40 ft-lb).
Note:
The roller brush, the idler bearing, and the belt
are considered consumable items.
Checking the Pulley
Alignment
Important:
Ensure that the belt is properly
tensioned prior to checking the alignment.
1.
Lay a straightedge along the outer face of the
drive pulley
Important:
the drive pulley, do not lay it across the drive
and the driven pulley.
2.
Ensure that the outer faces of the drive pulley
g037645
and the driven pulley are in line within 0.76 mm
(0.030 inch).
Important:
check the alignment.
3.
If the pulleys are not aligned, refer to
the Pulley Alignment (page
21).
Important:
the pulleys are not properly aligned.
9
(Figure
23).
Only lay the straightedge across
Do not use the idler pulley to
10).
The belt may fail prematurely if
Figure 23
Adjusting
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