Using The Differential Lock; Using The Hydraulic Control - Toro Workman 07390 Operator's Manual

Using the Differential Lock

WARNING
Tipping or rolling the machine on a hill can
cause a serious injury.
• The extra traction available with the
differential lock can be enough to get you
into dangerous situations such as climbing
slopes that are too steep to turn around.
Be extra careful when operating with the
differential lock on, especially on steeper
slopes.
• If the differential lock is on when making a
sharp turn at a higher speed and the inside
rear wheel lifts off the ground, there may
be a loss of control, which could cause the
machine to skid. Use the differential lock
only at slower speeds.
CAUTION
Turning with the differential lock on can result
in loss of machine control. Do not operate
with differential lock on when making sharp
turns or at high speeds.
The differential lock increases the traction of the
machine by locking the rear wheels so that a wheel
does not spin out. This can help when you have
heavy loads to haul, on wet turf or slippery areas,
going up hills, and on sandy surfaces. It is important
to remember that this extra traction is only for
temporary, limited use. Its use does not replace the
safe operation already discussed concerning steep
hills and heavy loads.
The differential lock causes the rear wheels to spin
at the same speed. When using the differential lock,
your ability to make sharp turns is somewhat restricted
and may scuff the turf. Use the differential lock only
when needed and at slower speeds.
Note:
Machine motion plus a slight turn is required to
engage or disengage differential lock.
•
Press the differential-lock switch up to lock the
differential (Figure
Note:
The light in the differential-lock switch
illuminates when the switch is in the lock position.
•
Press the differential-lock switch up to unlock the
differential (Figure
24).
24).
1. Lock position
(differential-lock switch)

Using the Hydraulic Control

The hydraulic control supplies hydraulic power from
the machine pump whenever the engine runs. You
can use the power through the quick couplers at the
rear of the machine.
WARNING
Hydraulic fluid escaping under pressure can
have sufficient 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 float 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 fluid may occur. Change the
transmission fluid more frequently.
28
Figure 24
2. Unlock position
(differential-lock switch)
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