Nilfisk-ALTO CR 1500 - Manual (Page 30)

GENERAL MACHINE MAINTENANCE
MAIN BROOM LEVEL ADJUSTMENT
The main broom level is factory set and shouldn’t need adjustment, if the level gets out of adjustment and the broom bristle
contact pattern is not an even 2” to 3” (5 to 8 cm.) wide. Adjust the broom arm lift frame. The frame is supported by two
fl ange bearings. These bearings are located inside the broom doors. The carriage bolts on the two end fl anges must be
loosened. The frame can then be leveled and the bolts tightened.
HOW TO ADJUST MAIN BROOM WEAR PATTERN
When the bristles of the broom begin to wear out the following adjustments may be made to keep a 2-inch (5-cm.)
broom pattern.
1. Loosen the nut located in the engine compartment.
2. Set the broom lever to the “Sweep” position and adjust the lock nut to obtain a 2-inch (5 cm) broom pattern. The
lock nut will move the adjusting rod that adjusts the sweeping pattern of the broom for wear.
3
A
FIGURE 25
SIDE BROOM LEVEL ADJUSTMENT
As the Side Broom (A) wears, loosen the two wear adjusting bolts and slide the broom-motor assembly into a position so that the broom contacts
the fl oor at a 3 degree angle when lowered as shown in Figure 25.
SIDE BROOM REPLACEMENT
Put the side broom lift control in the “UP” position. Remove the retaining screw in the bottom middle of the side broom. Remove the side broom.
Transfer the side broom fl ange spacer and screws to the replacement side broom. Put the replacement side broom on the shaft. Put the retaining
screw in position and tighten.
Raise or
Lower for
Wear Adjustment
Forward
Floor
Contact
Area
A-30 / ENGLISH
A-30 - FORM NO. - 56041719 - CR 1500