Sweep System, Main Broom
221
Service Manual – Advance 7765 / Nilfisk CR1500
Main Broom Motor On
When the
Main Broom Motor
is on, the
Main Broom Solenoid (2)
is energized (closed). This forces the hydraulic
oil to flow from the
Auxiliary Pump
through non-priority leg of the priority flow divider, then to the
Main
Broom Motor
and
Dust Control Motor
. The oil will then flow from the discharge side of the
Dust Control Motor
to
port “
2
” on the
Main Control Valve
.
The
Case Drain
from the
Main Broom Motor
goes to the
Return Block
.
4.50
CIR
.75
GPM
Main
Broom
Motor
1.02
CIR
1.24 CIR
Return Block
Reservoir
Auxiliary
Pump
Drive
Pump
9.7 GPM
Main Broom
Solenoid (2)
To Normal
Rotation Brush (4)
To Side
Broom
Valve
To Dust
Control
Motor
From Dust
Control
Motor
Case
Drain
1
2
To Return
Block
2500
PSI
Main Control
Valve
P
T1