![background image](http://html.mh-extra.com/html/advance-acoustic/56514925/56514925_service-manual_2855496158.webp)
Recovery System 158
Service Manual – Advance 7765 / Nilfisk CR1500
Recovery System Hydraulic Diagrams
Squeegee Vacuum Fan Off
When the
Squeegee
Vacuum Motor
is off,
the
Squeegee Fan Motor
Solenoid (12)
is energized.
This allows the hydraulic
oil to flow from the
non-priority leg on the
Auxiliary Pump
through
the
Squeegee Fan Motor
Solenoid
, bypassing the
Squeegee Vacuum Motor
.
The hydraulic oil then
returns to the
Drive Pump
charge circuit.
Squeegee Vacuum Fan On
When the
Squeegee
Vacuum Motor
is on,
the
Squeegee Fan Motor
Solenoid (12)
is de-
energized. This forces the
hydraulic oil to flow from
the non-priority leg on
the
Auxiliary Pump
to the
Squeegee Vacuum Motor
.
The hydraulic oil then
returns to the
Drive Pump
charge circuit.
The
Case Drain
allows
any oil leaked into the
motor case to drain into
the
Reservoir
to prevent it
from building up pressure
and possibly damaging the
motor seals.
The
Check Valve
relieves the pressure in the
Squeegee Vacuum Motor
when it is shut off and allows the high-
speed
Squeegee Vacuum Motor
to “coast” down and reduce its speed more gradually.
Auxiliary
Pump
2200
PSI
Relief
Valve
Squeegee
Fan Motor
Solenoid (12)
Squeegee
Vacuum
Motor
0.151
CIR
1.02
CIR
8.2 GPM
Reservoir
1.02
CIR
1.24 CIR
Drive
Pump
Auxiliary
Pump
2200
PSI
Relief
Valve
Squeegee
Fan Motor
Solenoid (12)
Squeegee
Vacuum
Motor
0.151
CIR
1.02
CIR
8.2 GPM
Reservoir
1.02
CIR
1.24 CIR
Drive
Pump
Case
Drain
Check
Valve
Summary of Contents for 56514925
Page 28: ...General Information 28 Service Manual Advance 7765 Nilfisk CR1500 Maintenance Item Locations ...
Page 74: ...Engine System common Electrical System 74 Service Manual Advance 7765 Nilfisk CR1500 ...
Page 89: ...Engine System Diesel 89 Service Manual Advance 7765 Nilfisk CR1500 Starter Relay ...
Page 113: ...Engine System Gasoline LPG 113 Service Manual Advance 7765 Nilfisk CR1500 ...
Page 114: ...Engine System Gasoline LPG 114 Service Manual Advance 7765 Nilfisk CR1500 ...
Page 115: ...Engine System Gasoline LPG 115 Service Manual Advance 7765 Nilfisk CR1500 ...