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MAINTENANCE
CYLINDRICAL SCRUB
SCRUB DECK ADJUSTMENT
Scrub deck adjustment consists of two types of
adjustments. The first is to insure the individual
brushes make the same width pattern end to end.
Any tapered brush pattern should be adjusted out.
The second is to make the pattern of equal width
between the front and rear brushes. Unequal
patterns are caused by the scrub deck not being
parallel to the floor. Proper adjustments is obtained
when the contact pattern of the brushes on the floor
shows two approximately 1" (2.5 cm) wide
rectangles the length of the brushes.
TESTING ADJUSTMENT OF BRUSHES
1. Move machine to an unfinished area of floor to
avoid marking finish.
2. With water valve off, set parking brake, and
lower scrub head to floor. Allow brushes to run
until automatic shut off occurs. It may be
necessary to extend this step in the same
location until a good mark can be seen on the
floor. This can be accomplished by setting
speed control knob to lowest setting and holding
direction control lever.
3. Raise the scrub deck and note the brush
patterns on the floor. There should be two
rectangles with parallel side. If the pattern is
tapered, proceed as follows.
ADJUSTMENT OF INDIVIDUAL BRUSHES
Adjustment of individual brushes is accomplished by
adjusting idler hub position on door. The mounting
hole in the idler hub shaft is eccentrically located
such that the idler hub position can be changed by
rotating the shaft orientation.
1. Determine if idler is to be moved up or down to
balance the pattern.
2. Remove idler door on brush to be balanced.
3. Measure distance of shaft from top of door and
record.
4. Loosen hex socket head screw on outside of
door.
5. Rotate shaft to new position. Hold shaft in
position.
6. Tighten hex socket head screw.
7. Install door on machine.
8. Re-test and re-adjust as necessary.
4-5
LEVELING THE SCRUB HEAD
Leveling the cylindrical head is accomplished by
adjusting the scrub head lift linkage. The upper lift
linkage can be adjusted by loosening the jam nuts at
each end of rods and rotating rods to extend or
shorten their length. To increase pattern width of
front brush, extend linkages. To increase pattern
width of rear brush, shorten linkages. Be sure to
adjust both linkages equally and to tighten jam nuts
after adjustments are complete.
BELT REPLACEMENT
1. Remove scrub brushes.
2. Remove four screws securing broom drive seal
3. Slacken belt tension by means of jack bolt under
4. The drive hub may be unscrewed from the
5. Place belt on motor pulley then pull down into
6. Insert drive hub from inside of scrub head and
7. Screw shaft into side of scrub head.
8. Re-tension belt to deflect 1/8" (3 mm) at center
9. Install broom drive seal and retainer.
10. Install scrub brushes.
SABER 36V (SX) 98739 10/25/99
and retainer.
motor.
inside. Flats are provided on end of pulley shaft
to facilitate removal.
scrub head.
through lower loop of belt.
of span when a pressure of 4 (1.8 kg) pounds is
applied.
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