Toro REELMASTER 4500-D Operator's Manual page 19

Note: There is a 1–2 second delay between rising off
the seat and the engine shuts off.
5. Engage the parking brake, move the Mow-Backlap
lever to NEUTRAL, start the engine, disengage the
hand brake and raise off the seat. If the engine stops,
the interlock system is operating. If the engine does
not stop, there is a malfunction that must be repaired
immediately.
PUSHING OR TOWING THE TRAC-
TION UNIT
In an emergency, the traction unit can be pushed or towed
for a very short distance by using the traction pump by-pass
valve.
IMPORTANT: Do not push or tow the traction unit
faster than 2 to 3 mph (3 to 5 km/hr) because the
hydraulic system may be damaged. If the traction unit
must be moved a considerable distance, transport it on a
truck or trailer.
1. Remove the retainer clip from the seat lock rod (Fig.
15)
2. Raise the seat and support it in an upright position with
the seat support rod (Fig. 16)
3. Lift and remove the front panel (Fig 17)
4. Turn the by-pass valve 90 degrees (Fig. 18). Opening
the valve opens an internal passage in the traction
pump, bypassing hydraulic oil.. Because the oil is by-
passed, the traction unit can be moved without damag-
ing the hydraulic system.
IMPORTANT: Make sure that the hand brake is
engaged before opening the by-pass valve.
The vehicle will roll with the front wheel motors
disengaged. The vehicle must be on a level surface
or the wheels must be blocked. There is no effec-
tive braking with the wheel motors disengaged.
CAUTION
Figure 15
1. Retainer clip
Figure 16
1. Seat support rod
Figure 17
1. Front Panel
2. Seat lock rod