Nilfisk-Advance 7765 Service Manual page 20

Service Manual – Advance 7765 / Nilfisk CR1500
• The is a
Auxiliary Pump
multiple-gear pump. Two
separate 1.02 CIR output
ports power the other machine
systems.
Note that the gas and diesel
fitting configurations are
slightly different, but the port
functions are the same.
Hydraulic Valves
• The
Main Control
controls
Valve
the oil flow to
the main broom
motor, dust
control motor,
scrub brush
motors and
hopper control
valve.
Note that the
functions of
ports and
3 4
will be reversed
when the scrub
motors are run
in the reverse
rotation.
Auxiliary
Pump
Main
Control Valve
To Return
Block/
Manifold
From Auxiliary
To Port "2"
on Side
Broom Valve
From Reservoir
To Port "P" on
Power Steering Unit
To Bottom Port
on Main
Broom Motor
Pump
Hydraulic System
To Squeegee
Vacuum Motor
To Port "P" on
Main Control Valve
To Hopper
Control Valve
To Scrub
Brush Motors
From Scrub
Brush Motors
To Dust
Control Motor
125