Safety Interlock System; Testing The Safety Interlock System - Scag Power Equipment SCZII-61V-36BV Operator's Manual

Section 4
SUSPENSION CONTROL
LEFT STEERING
CONTROL
BRAKE LATCH
LEVER
FUEL TANK GAUGE
SPEED CONTROL
LEVER
SEAT BELT
FUEL SWITCHING
DUMP VALVE

4.3 SAFETY INTERLOCK SYSTEM

The mower is equipped with a safety interlock system that
prevents the engine from starting unless the deck drive is
disengaged, the parking brake is engaged, the steering
control levers are in the neutral position and the operator
is in the seat. The interlock system shuts off the engine if
the operator leaves the seat with the steering control levers
not in the neutral position and/or the cutter blades engaged
and the parking brake not engaged.
WARNING
Never operate the mower with the interlock
system disconnected or malfunctioning. Do
not disengage or bypass any switch; injury to
yourself and others or property damage could
result.
LEVER
BRAKE
PEDAL
DECK LIFT
VALVE
Figure 4-3. Controls and Istruments
CUTTING HEIGHT
ADJUSTMENT
RIGHT STEERING
CONTROL
CUTTER DECK
RELEASE LEVER
FUEL TANK GAUGE
FUSES
SEAT HOLD DOWN
RELEASE LATCH
DUMP VALVE
4.4 TESTING THE SAFETY INTERLOCK
SYSTEM
The safety interlock system should be tested each time
before using the machine. If the safety interlock system
does not operate as described below, contact your local
Authorized Scag Power Equipment Dealer immediately to
have the safety interlock system repaired.
1. Sit in the seat in the operating position, engage the
parking brake, place the steering control levers in
the neutral lock position, and engage the PTO switch
to the ON (up) position. Try to start the engine; the
engine should not start.
2. Sit in the seat in the operating position, engage the
parking brake, move either of the steering control
handles out of the neutral lock position, move the
PTO switch to the OFF (down) position. Try to start
the engine; the engine should not start. Repeat for
the other steering control lever.
3. Sit in the seat in the operating position, disengage
the parking brake, place the steering control levers
in the neutral lock position, move the PTO switch to
the OFF (down) position. Try to start the engine; the
engine should not start.
19
CHECK ENGINE
EFI MODELS
ENGINE THROTTLE
CONTROL
MOWER DECK
SWITCH
TIGER EYE
ENGINE CHOKE
CONTROL
IGNITION
SWITCH
R
LIGHT