Nilfisk-Advance 7765 Service Manual page 97

Service Manual – Advance 7765 / Nilfisk CR1500
Squeegee Down, Engine Running
Power Steering
Cylinder
L
Power
Steering
Unit
3.1
CIR
1500
PSI
T
When the engine is running and the squeegee blade switch is set to the squeegee-lower position, the
solenoid valve is energized and the
Squeegee Lock Up (10)
directs the hydraulic oil to the top port on the
R
P
To Squeegee
Vacuum Motor
Reservoir
Squeegee Deck Cylinder
Squeegee
Cylinder
Lock Up (10)
Control
Valve
Squeegee
Cylinder
Solenoid (7)
Scrub Brush
Solenoid (8)
Scrub Brush
Solenoid (6)
T P
8.2 GPM
1.5 GPM
Auxiliary
1.02
Pump
CIR
Squeegee Cylinder Solenoid (7)
to lower the squeegee.
Squeegee System
Squeegee
Deck
Cylinder
C4
C3
Check Valve
270 PSI
C2
To and From
Scrub Deck
Cylinder
C1
Scrub Brush
Lock Up
Solenoid (9)
is de-energized. This
202
Squeegee
Down