GB - 12
CONTROLS AND FEATURES
See Figure 3 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.
NOTE: When the parking brake is engaged,
the steering levers are locked in neutral.
ROLLOVER PROTECTION
STRUCTURE (ROPS)
Frequently inspect ROPS and seat belt for
damage or loose hardware.
Use extreme care when working close to
fences, ditches, or on hills.
Check overhead clearance carefully before
driving under any objects.
ALWAYS wear seat belt while operating the
unit with the ROPS in the upright position.
Do not wear a seat belt while operating the
unit with the center bar in the lowered
position.
IMPORTANT: Do not weld, cut, drill or modify
ROPS in any manner unless instructed by the
manufacturer.
Lower Center Bar (Figure 5)
1. Remove the two hair pins and then
remove the ROPS lock pins from the
hinge plate.
2. Lower the center bar into down position.
3. Install the ROPS lock pins in the hinge
plate and secure with the hair pins.
Raise Center Bar (Figure 5)
1. Remove the two hair pins and then
remove the ROPS lock pins from the
hinge plate.
2. Raise the center bar into up position.
3. Install the ROPS lock pins in the hinge
plate and secure with the hair pins.
NOTE: Return the center bar to the raised
position when clear of obstacles.
Parking Brake Interlock System
With the parking brake engaged, the steering
levers must be locked in neutral.
With the parking brake disengaged, the
engine must not start and the engine must
shut off if the operator leaves the seat.
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.
Test Steering
Levers
PTO Parking
Brake
Engine
STARTING INTERLOCK
1 Neutral Off Engaged Starts
2 Neutral On Engaged Doesn’t
Start
3 Neutral Off Dis-
engaged
Doesn’t
Start
OPERATING INTERLOCK (ENGINE ON)
4* Neutral On Engaged Shuts Off
5* Neutral Off Dis-
engaged
Shuts Off
* Operator lifts off seat.
WARNING: Lower the center bar
only when necessary to drive under
an object. There is no rollover
protection with the center bar in the
down position.
Lowered Position
Figure 4
Raised
Position
Lock
Pin
Lock
Pin
Hair
Pin
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