Nilfisk-Advance 7765 Service Manual page 95

Service Manual – Advance 7765 / Nilfisk CR1500
Squeegee System Hydraulic Diagrams
Squeegee Up, Key Switch Off
Power Steering
Cylinder
L
Power
Steering
Unit
1500
PSI
T
When the squeegee is up and the machine is shut off, the
energized to block the oil flow from the lower port on the
in the retracted position when the machine is shut off.
R
3.1
CIR
P
To Squeegee
Vacuum Motor
Reservoir
Squeegee
Cylinder
Lock Up (10)
Control
Valve
Check Valve
Squeegee
270 PSI
Cylinder
Solenoid (7)
Scrub Brush
Solenoid (8)
Scrub Brush
Solenoid (6)
Scrub Brush
Lock Up
Solenoid (9)
T P
8.2 GPM
1.5 GPM
Auxiliary
1.02
Pump
CIR
Squeegee Lock Up (10)
Squeegee Deck Cylinder
Squeegee System
Squeegee
Deck
Cylinder
C4
C3
Squeegee
Locked Up
C2
To and From
Scrub Deck
Cylinder
C1
solenoid valve is de-
. This holds the squeegee up
200