Nilfisk-Advance SC6000 1050D, Service Manual

Page: 104 / 138

104 Service Manual – SC6000 34 - Scrub System, Cylindrical
The down-limit cam isn’t adjustable, but by adjusting the position of the up-limit cam, the actuator can
control its length of travel for the leadnut along the leadscrew
M
CW CCW
Scrub Control
Scrub pressure is controlled by monitoring the motor amperage from both brush motors If the combined
brush motor current is below its target amperage, the deck is lowered slightly to increase brush pressure If
the combined amperage is above the target amperage, the deck is raised slightly Additionally, if either one
of the motors is operating above its maximum allowed amperage, the deck is raised
The motor amperage is sampled every 250ms, but adjustments are made only at 45 second intervals to filter
out minor variations in the floor. The instantaneous amperage readings are averaged for the 45 second
interval
Deck Type
Floor Type Scrub Level Min Amps Max Amps
34D
860D
Standard
Low 20 30
High 30 40
Extreme 40 50
Smooth
Low 15 25
High 25 35
Extreme 35 45
Individual Motor Max 25
40D
1050D
Standard
Low 20 30
High 30 40
Extreme 40 50
Smooth
Low 15 25
High 25 35
Extreme 35 45
Individual Motor Max 25
36C
910C
Standard
Low 20 30
High 30 40
Extreme 40 50
Smooth
Low 15 25
High 25 35
Extreme 35 45
Individual Motor Max 25