Rear Option Circuit (Twin Spinner Or Conveyor) - Toro ProPass 200 Service Manual

Rear Option Circuit (Twin Spinner or Conveyor)

Machines with standard hydraulic controls include
manual hydraulic controls on the front of the ProPass
hopper to adjust hydraulic flow to the floor and rear op-
tion (twin spinner or conveyor) motors (Fig. 19). A
pendant electrical control allows the operator to ener-
gize the floor and rear option motors from the operator
position of the tow vehicle. The ProPass hydraulic sys-
tem with standard hydraulic controls can function
whenever hydraulic flow is available from the tow
vehicle or hydraulic power pack.
If neither the floor motor or rear option (twin spinner or
conveyor) motors are engaged, hydraulic flow bypasses
the motors and returns directly to the hydraulic reservoir.
The floor and rear option will remain in the stationary po-
sitions.
NOTE: Typically, the rear option (twin spinner or con-
veyor) is engaged before the floor is started.
When the operator engages the rear option (twin spin-
ner or conveyor) motors, the rear option solenoid valve
is energized which directs hydraulic flow to the rear op-
tion control valve. The rear option control valve directs
hydraulic flow to the rear option motors based on the
control valve setting to allow the option to operate at the
correct speed for topdressing material to be delivered.
System hydraulic flow in excess of the rear option con-
trol valve setting is returned to the reservoir. Return from
the rear option motors is routed to the reservoir as well.
Hydraulic circuit pressure is controlled by the system re-
lief valve either on the tow vehicle or hydraulic power
pack.
Floor Circuit
Machines with standard hydraulic controls include
manual hydraulic controls on the front of the ProPass
hopper to adjust hydraulic flow to the floor and rear op-
tion (twin spinner or conveyor) motors (Fig. 19). A
pendant electrical control allows the operator to ener-
gize the floor and rear option motors from the operator
position of the tow vehicle. The ProPass hydraulic sys-
tem with standard hydraulic controls can function
whenever hydraulic flow is available from the tow
vehicle or hydraulic power pack.
If neither the floor motor or rear option (twin spinner or
conveyor) motors are engaged, hydraulic flow bypasses
the motors and returns directly to the hydraulic reservoir.
The floor and rear option will remain in the stationary po-
sitions.
ProPass 200
1
1. Floor control
2. Rear option control
NOTE: Typically, the rear option (twin spinner or con-
veyor) is engaged before the floor is started.
When the operator engages the floor motor, the floor
solenoid valve is energized which directs hydraulic flow
to the floor control valve. The floor control valve directs
hydraulic flow to the floor motor based on the control
valve setting to allow the floor to operate at the correct
speed for topdressing material to be delivered to the
rear option (twin spinner or conveyor). System hydraulic
flow in excess of the floor control valve setting along with
floor motor return flow is available for the rear option.
Hydraulic circuit pressure is controlled by the system re-
lief valve either on the tow vehicle or hydraulic power
pack.
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2
3
Figure 19
3. Pendant harness
Hydraulic System