Hydraulic Control - Toro 07362 Operator's Manual

When towing 5th wheel attachments, like a fairway
aerator, always install the "wheely bar"(included
with the 5th wheel kit) to prevent the front wheels
from lifting off the ground if the towed attachments
movement is suddenly impaired.

Hydraulic Control

The hydraulic control supplies "live" hydraulic power
from the vehicle pump whenever the engine is running.
The power can be used through the quick couplers at
the rear of the vehicle.
Important: If multiple vehicles use the
same attachment, cross contamination of the
transmission fluid may occur. Change the
transmission fluid more frequently
Control Lever Positions
Off Position
This is the normal position for the control valve when
it is not being used. 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 "A" Position)
This is the position which will lift the bed, 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 reservoir.
This is a momentary position and when the lever is
released it spring returns to the center off position.
Lower (Quick Coupler "B" Position)
This position will lower the bed, 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 reservoir. 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 "B" 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.
1. Quick coupler "A" position
On Position
This position is similar to Lower (quick coupler "B"
position). It also directs oil to quick coupler "B" except
that the lever is held in this position by a detent lever 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.
Important: If used with a hydraulic cylinder or
no attachment, the On position causes the oil
flow to go over a relief valve which can damage
the hydraulic system. Use this position only
momentarily or with a motor attached.
Important: Check hydraulic oil level after
installation of attachment. Check operation of
attachment by cycling attachment several times
to purge air from system, then recheck hydraulic
oil level. Attachment cylinder will slightly affect
transaxle oil level. Operation of vehicle with low oil
level can damage pump, remote hydraulics, power
steering and vehicle transaxle.
34
Figure 35
2. Quick coupler "B" position