Gravely 988100 Owner's/Operator's Manual page 14

To stop mowing:
1. Lock the steering levers in neutral.
2. Keep one hand on the operator presence control and
move the shift lever to the neutral position.
3. Move the throttle lever to 1/2 speed.
4. Turn off PTO switch.
988114, 115, 118, 119, 313
To shift unit:
1. Stop unit movement by bringing control levers to
neutral.
2. With control levers in neutral, use your knee or hand to
move the shift lever to the desired position.
3. Push both control levers forward slowly to move in
selected direction.
To operate:
1. Start the engine (See Starting and Shut Off on
page 12).
2. Move the throttle lever to the Fast position.
3. Move shift lever to desired direction and speed.
4. Engage operator presence control.
WARNING: AVOID INJURY. When the engine
is running and the shift lever is engaged, using
one steering control lever causes the unit to
circle around one drive wheel.
ALWAYS hold both steering levers when
operating unit and move levers slowly.
• To move straight forward, slowly push control levers
forward.
• To stop unit motion, allow control levers to return to
neutral.
• To turn to the left, push the right hand control lever
forward.
• To turn to the right, push the left hand control lever
forward.
To move in reverse:
1. Allow control levers to return to neutral.
2. Move shift lever to Reverse.
3. Pull up slowly on the lower control levers.
To mow:
1. Move the shift lever to set a slow ground speed.
2. Move the throttle lever to the fast position.
3. Engage operator presence control(s).
NOTE: Operator presence control must remain engaged.
4. Move the PTO switch to On to engage mower.
IMPORTANT: NEVER engage the PTO if the mower is
plugged with grass or other material. This will damage the
PTO belt.
5. Push control levers forward slowly.
When you know how to operate the unit, select a speed
OG1600
appropriate to your mowing conditions.
To stop mowing:
1. Allow control levers to return to neutral.
2. Move the throttle lever to 1/2 speed.
3. Turn off PTO switch.
4. Move shift lever to the neutral position.
OG1610
CUTTING HEIGHT ADJUSTMENT
Fixed Decks (988100, 102, 110, 112, 114, 115, 118,
119, 313)
1. Shut off the unit. See Shut Off on page 12 and "To stop
mowing."
2. Lift deck by handle until mower lock pins can be pulled
out of holes.
3. Turn latches slightly so they can't snap back into place.
OG1630
4. Set deck to desired cutting height (Figure 6).
5. Place mower lock pins into desired hole.
GB-14
WARNING: Uncontrolled reverse travel can
result in serious injury.
Do not put shift lever into the reverse position
unless you are prepared to operate in reverse.
OG1640
OG1660