Using The Drive Wheel Release Valves - Toro Z Master 75990 Operator's Manual

Adjust the rear-shock assemblies
Figure 38
(Figure 38).
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Using the Drive Wheel
Release Valves
WARNING
Hands may become entangled in the rotating
drive components below the engine deck,
which could result in serious injury.
Stop the engine, remove the key, and allow
all moving parts to stop before accessing the
drive wheel release valves.
WARNING
The engine and hydraulic drive units can
become very hot. Touching a hot engine or
hydraulic drive units can cause severe burns.
Allow the engine and hydraulic drive units to
cool completely before accessing the drive
wheel release valves.
The drive wheel release valves are located in the back
of each hydraulic drive unit, under the seat.
Note:
Ensure that the release valves are in the fully
horizontal position when operating the machine;
otherwise, severe damage to the hydraulic system
can occur.
1. Disengage the PTO (blade-control switch) and
turn the ignition key to O
to the N -L
EUTRAL
parking brake, and remove the key.
2. Rotate the release valve levers vertically to push
the machine. This allows the hydraulic fluid to
bypass the pump, enabling the wheels to turn
(Figure 39).
3. Disengage parking brake before pushing the
machine.
. Move the levers
FF
position, engage the
OCKED