Nilfisk-Advance 7765 Service Manual page 54

Service Manual – Advance 7765 / Nilfisk CR1500
Scrub Brush Motor Control Valves
The
Normal
Rotation Brush
and
(4) Reverse
Rotation Brush (3)
solenoid valves on
the
Main Control
control the
Valve
hydraulic oil to
the scrub brush
motors from
Port 3
or depending
Port 4
on the direction
of the scrub brush
motors. The oil
returns from the
motors to or
Port 3
depending
Port 4
on the direction
of the scrub brush
motors.
Normal
Rotation
Reverse
Brush (4)
Rotation
Brush (3)
Main
Control Valve
Oil to and
from Scrub
Brush Motors
Scrub System 159