Checking Interlock System; Pushing Or Towing Traction Unit - Toro 03706 Operator's Manual

Checking Interlock System.

Caution
If safety interlock switches are disconnected or
damaged the machine could operate unexpectedly
causing personal injury.
Do not tamper with the interlock switches.
Check the operation of the interlock switches
daily and replace any damaged switches before
operating the machine.
Replace switches every two years regardless of
whether they are operating properly or not.
1. In a wide open area free of debris and bystanders, lower
cutting units to the ground. Stop engine.
2. Sit on the seat and engage parking brake (Fig. 13). Turn
key and try to start engine with Mow–Backlap lever
(Fig. 13) in both the MOW and BACKLAP positions. If
engine cranks, there is a malfunction that must be
repaired immediately. If engine does not crank, the
cutting unit drive switch is operating properly.
3. Sit on the seat and disengage the parking brake. Turn
key and try to start engine with Mow–Backlap lever in
STOP. If engine cranks, there is a malfunction that must
be repaired immediately. If engine does not crank, brake
switch is operating properly.
4. Engage parking brake, start engine and lower cutting
units. Move Mow–Backlap lever to MOW. Raise off the
seat; engine should stop within a few seconds, which
indicates the interlock system is operating. Also raise
off the seat with lever in BACKLAP. Engine should
stop, indicating interlock system is operating. If engine
does not stop, there is a malfunction that must be
repaired immediately.
Note: There is a 1 – 2 second delay between rising off seat
and engine shut off.
5. Engage parking brake, move Mow–Backlap lever to
NEUTRAL, start engine, disengage hand brake and
raise off seat. If engine stops, interlock system is
operating. If engine does not stop, there is a
malfunction that must be repaired immediately.
Pushing Or Towing Traction
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 hydraulic system
may be damaged. If traction unit must be moved a
considerable distance, transport it on a truck or trailer.
1. Remove retainer clip from seat lock rod (Fig. 17).
1. Retainer clip
2. Raise seat and support it in upright position with seat
support rod (Fig. 18).
1. Seat support rod
3. Rotate by–pass valve 90 degrees (Fig. 19). Opening the
valve opens an internal passage in the traction pump,
thereby by–passing hydraulic oil. Because oil is
by–passed, traction unit can be moved without
damaging the hydraulic system.
22
1
Figure 17
1
Figure 18