Gravely 992042 19HP-144Z - Manual (Page 12)

GB - 12
CONTROLS AND FEATURES
See Figure 1 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.
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.
Steering Levers
The steering levers control speed and direction. In
addition, they will stop the unit.
A. For reverse travel, pull both steering control levers
backward.
B. For straight forward travel, push both steering control
levers forward.
C. To turn left, pull the left back or push the right
steering control lever forward or a combination of
both.
D. To turn right, pull the right back or push the left
steering control lever forward or a combination of
both.
To stop, return both steering levers to neutral.
NOTE: The steering controls are mechanically locked in
neutral whenever the parking brake is engaged.
NOTE: Aggressive turning can scuff or damage lawns.
ALWAYS keep both wheels rotating when making sharp
turns. DO NOT make turns with inside wheel completely
stopped. To obtain minimum turning radius, slowly
reverse inside wheel while moving outside wheel slowly
forward.
Ignition Switch
Operate the ignition switch with the
removable key. The switch has three
positions: Off (1), On (2) and Start (3). To
start the engine, turn the key to Start, then
release to On. To stop the engine, turn the
key to Off.
Choke Control
Push the choke lever forward to start a
cold engine. Pull the choke lever to the
rear when the engine gets warm.
Throttle Lever
The throttle lever changes the engine
speed. Move the throttle lever to Fast (1)
to increase engine speed. Move the lever
to Slow (2) to decrease engine speed.
Power Take Off (PTO) Switch
Power take off (PTO) switch engages and
disengages the mower blades.
Pull the power take off (PTO) switch to
"On" position to engage mower blades.
Push the power take off (PTO) switch to
"Off" position to disengage mower blades.
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 Disengaged Doesn’t Start
OPERATING INTERLOCK (ENGINE ON)
4* Neutral On Engaged Shuts Off
5* Neutral Off Disengaged Shuts Off
* Operator lifts off seat.
077348A
A B
C D
1
2
3
OF1750
OF1680
OF1700
2
1
OE0261 OFF
ON