Using The Drive-Wheel-Release Valves - Toro 74904 Operator's Manual

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.
Shut off 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 or severe
damage to the hydraulic system can occur.
1. Disengage the PTO (blade-control switch), turn the
ignition key to the O
N -L position, apply the parking brake, and
EUTRAL OCK
remove the key.
2. Rotate the release-valve levers vertically to push the
machine (Figure 37).
Note: This allows hydraulic fluid to bypass the pump,
enabling the wheels to turn.
3. Disengage the parking brake before pushing the
machine.
position, move the levers to
FF
1. Vertical to push the
machine
4. Rotate the release-valve levers horizontally to run the
machine (Figure
29
Figure 37
2. Horizontal to run the
machine
37).