GB - 11
CONTROLS AND FEATURES
See Figure 4 for Controls and Features
locations.
Safety Interlock System
Perform the following tests to ensure the
safety interlock system is working properly. If
the unit does not perform as stated, contact
your Gravely dealer for repairs.
IMPORTANT: With the parking brake/ clutch
disengaged, the engine must not start and
the engine must shut off if the operator
releases the operator presence lever.
Operator Presence Lever
IMPORTANT: With the parking brake/ clutch
disengaged, the engine must not start and
the engine must shut off if the operator
releases the operator presence lever.
This safety feature ensures that the operator
presence lever must be depressed to operate
the unit and engage the PTO when the
parking brake/ clutch is disengaged.
OPERATION
WARNING: AVOID INJURY. Read
and understand entire Safety
section before proceeding.
WARNING: Safety interlock
system failure and improper
operation of unit can result in
death or serious injury. Test this
system each time the unit is
operated. If this system does not
function as described, do not
operate until repairs are made.
DANGER: The engine can be
started with the forward / reverse
control out of the neutral position
when the parking brake / clutch is
engaged. Releasing the parking
brake/ clutch while holding down
the operator presence lever will
start the unit driving forward.
MAKE SURE the forward / reverse
control is in the neutral position
prior to starting the engine.
Test Operator
Presence
Lever
PTO
Parking
Brake /
Clutch
Engine
STARTING INTERLOCK
1
Off
On or
Off
Engaged
Starts
2
Off
Off
Dis-
engaged
Doesn’t
Start
OPERATING INTERLOCK (ENGINE ON)
3
Off
Off
Engaged
On
4
On
On
Dis-
engaged
On
5
Off
On or
Off
Dis-
engaged
Shuts
Off
