Toro Workman HDX-D - Using the Hydraulic Control

Using the Hydraulic Control
The hydraulic control supplies hydraulic power from
the machine pump whenever the engine runs. Y ou
can use the power through the quick couplers at the
rear of the machine.
W ARNING
Hydraulic uid escaping under pressure can
have sufcient force to penetrate skin and
can cause serious injury .
Use care when connecting or disconnecting
hydraulic quick couplers. Shut off the
engine, engage the parking brake, lower the
attachment, and place the remote hydraulic
valve in the oat detent position to relieve
the hydraulic pressure before connecting or
disconnecting the quick couplers.
Important: If multiple machines use the
same attachment, cross-contamination of the
transmission uid may occur . Change the
transmission uid more frequently .
Using the Hydraulic Bed-Lift Lever
to Control Hydraulic Attachments
• O FF Position
This is the normal position for the control valve
when it is not in use. In this position, the work
ports of the control valve are blocked and any load
is held by the check valves in both directions.
• R AISE (Quick Coupler A) Position
This position lifts the bed and rear hitch
attachment, or applies pressure to quick coupler
A. This position also allows hydraulic uid to return
from quick coupler B to ow back into the valve
and then out to the reservoir . This is a momentary
position, and when you release the lever , it
spring-returns to the center , O FF position.
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Figure 18
1. Quick coupler A position 2. Quick coupler B position
• L OWER (Quick Coupler B) Position
This position lowers the bed, rear hitch attachment,
or applies pressure to quick coupler B. This also
allows hydraulic uid to return from quick coupler
A to ow back into the valve and then out to the
reservoir . This is a momentary position, and when
you release the lever , it spring-returns to the
center , O FF position. Momentarily holding and then
releasing the control lever in this position provides
hydraulic-uid ow to quick coupler B, which
provides power down on the rear hitch. When you
release it, it holds the down-pressure on the hitch.
Important: If you use it with a hydraulic
cylinder , holding the control lever in the lower
position causes the hydraulic-uid ow to
go over a relief valve, which can damage the
hydraulic system.
• O N Position
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