Nilfisk-Advance 7765 Service Manual page 108

Service Manual – Advance 7765 / Nilfisk CR1500
Turning the Steering Wheel with the Engine Off
When the engine is off and no
hydraulic oil is being pumped to
the , the
Power Steering Unit
acts like a
Metering Mechanism
pump when the steering wheel
is turned. The
Check Valve
the oil pumped from the
to flow to and
Metering Mechanism
from the
Power Steering Cylinder
to allow the machine to be steered
manually with the engine off.
Gerotor
allows
Gerotor
Power Steering
Cylinder
Drive Wheel Moves
When Steering
Wheel is Turned
Gerotor
Metering
Power
L
Mechanism
Steering
Unit
3.05
CIR
Valve
Check
Valve
1500
PSI
T
Reservoir
Steering System
R
Direct
Mechanical
Link
P
To Cylinder
Control Valve
1.5 GPM
Auxiliary
1.02
Pump
CIR
213
To Squeegee
Vacuum Motor