Remote Hydraulic Control - Toro 07211 Operator's Manual

Remote Hydraulic Control

Model 07211TC only
The remote hydraulic control kit supplies "live" hydraulic
power from the vehicle pump whenever the engine is
running. The power can be used through the the quick
couplers at the rear of the vehicle.
CONTROL LEVER POSITIONS
Off Position
This is the normal position for the control valve when it is
not being used. This position allows the oil leaving the
dump valve to flow through the remote hydraulic valve to
the power steering circuit. In this position the work ports
of the control valve are blocked and any load will be held
by the check valves in both directions.
Raise (Quick Coupler "B" Position)
This is the position which will lift the rear hitch attachment
or apply pressure to quick coupler "B". This also allows
return oil from Quick coupler "A" to flow back into the
valve and then out to the power steering circuit. This is a
momentary position and when the lever is released it spring
returns to the center off position.
Important Use double acting cylinders only. Using a
single acting cylinder does not allow return flow of
hydraulic oil and makes steering more difficult. Using a
single acting cylinder can lower oil level in transaxle and
cause damage to hydraulic pump and transaxle.
On Position
This position is similar to Raise (quick coupler "B"
position). It also directs oil to quick coupler "B" except
that the lever is held in this position by a detent notch in the
control panel. This allows oil to flow continuously to
equipment that uses a hydraulic motor. This position must
only be used on attachments with a hydraulic motor
attached.
Note: If hydraulic motor is used, it may see 1000 psi back
pressure.
Important
If used with a hydraulic cylinder or no
attachment, the Raise or On position causes the oil flow to
go over a relief valve which can damage the hydraulic
system. Additionally this condition does not allow return
flow to supply the power steering circuit, which makes
steering more difficult. Use these positions only
momentarily or with a motor attached.
Lower (Quick Coupler "A" Position)
This position will lower the rear hitch attachment or apply
pressure to quick coupler "A". This also allows return oil
from quick coupler "B" to flow back into the valve and
then out to the power steering circuit. This is a momentary
position and when the lever is released it spring returns to
the center off position. Momentarily holding and then
releasing the control lever in this position will provide flow
to quick coupler "A" which provides power down on the
rear hitch. When released, it will hold the down pressure on
the hitch.
Important
If used with a hydraulic cylinder, holding
the control lever in the lower position causes the oil flow to
go over a relief valve which can damage the hydraulic
system.
Float Position
This valve position allows oil to flow in and out of the
work ports and is connected to the inlet and outlet ports at
the same time. This allows for attachments as the rear hitch
to "float" up and down. The same pressure is applied to
both quick couplers due to back pressure from the steering
circuit.
Caution
Use caution when moving lever to the float position
because it will allow rear implement to lower
unimpeded.
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