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2. Move the speed control levers to the neutral
position.
3. Turn off PTO switch.
988116, 117, 120, 314
To operate:
1. Start the engine (See Starting and Shut Off on
page 13).
2. Move the throttle lever to the Fast position.
3. Engage operator presence control.
• 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, pull both control levers
backward, past the neutral position. Pulling the
levers farther back increases reverse speed.
To mow:
1. Move the throttle lever to the fast position.
2. Engage operator presence control(s).
NOTE: Operator presence control must remain
engaged.
3. 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.
4. Push control levers forward slowly.
When you know how to operate the unit, select a speed
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.
CUTTING HEIGHT ADJUSTMENT
Fixed Decks (988105, 106, 113, 120, 314)
1. Shut off the unit. See Shut Off on page 13 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.
4. Set deck to desired cutting height (Figure 6).
5. Place mower lock pins into desired hole.
IMPORTANT: Make sure lock pins are fully engaged.
6. Repeat adjustment for other side of deck.
WARNING: AVOID INJURY. When the
engine is running, 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.
OG1600
OG1610
OG1630
OG1640
WARNING: Uncontrolled reverse travel can
result in serious injury.
Do not put control levers into the reverse
position unless you are prepared to operate
in reverse.
OG1650