Assembly; Operation - Gravely Pro 150 Owner's/Operator's Manual

ACCESSORY AND ATTACHMENT SAFETY
RULES
Use only attachments or accessories designed for your
unit.
Check attachment components frequently. If worn or
damaged, replace with manufacturer's recommended
parts.
WARNING: AVOID INJURY. Read and
understand Assembly, Fuel and Battery
Safety Rules before proceeding.
1. Remove the power unit from shipping container.
2. Adjust tire pressure to 12 to 15 psi (83 to 103
kPa).
3. For electric start models, charge and connect
battery. See Service & Adjustments.
WARNING: AVOID INJURY. Read and
understand Operational, Fuel and Battery
Safety Rules before proceeding.
CONTROLS AND FEATURES
Safety Interlock System
The engine will only start with the PTO disengaged and
the shift lever in neutral.
DANGER: SAFETY INTERLOCK SYSTEM
FAILURE and improper operation of unit can
result in death or serious injury. ALWAYS
know the safety interlock system is operating
properly. See Maintenance for testing
instructions.
Operator Presence Control
When the shift lever or PTO is engaged, the operator
presence control stops the engine when the operator
presence control lever is released. The operator
presence control lever must be depressed to operate
the PTO or traction drive.
CAUTION: AVOID INJURY. Operate only
when presence control is functioning
correctly.
Use extra care with grass catchers and other
attachments. These can change the stability of the unit.
Use only approved hitch points.
ALWAYS be aware of attachments when turning.
ALWAYS allow adequate clearance between
attachments, personnel, and other objects.

ASSEMBLY

4. Check the adjustments outlined in Service &
Adjustments.
5. Add clean fuel to the fuel tank. See engine
manual for type and grade.
6. Mount mower to unit.
7. Check for loose hardware.
8. Be sure that safety interlock system operates
correctly. See Maintenance.
9. Be sure that unit tracks straight. See
Adjustments.

OPERATION

Steering Levers
The steering levers are used to steer, operate in
forward and reverse, and stop the unit. When held in
neutral, the brakes are engaged.
Steering Lever Latches
The red steering lever latches hold the steering levers
in the neutral lock position.
1
2
3
OF1210
1
2
OF1211
GB - 8
Ignition Switch (Electric Start
Models)
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 Run. To stop the engine, turn
the key to Off.
Ignition Switch (Recoil Start
Models)
Operate the ignition switch with the
removable key. The switch has two
positions: Off (1) and On (2). To start the
engine, turn the key to On and pull the
recoil handle. To stop the engine, turn the
key to Off.