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• 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.
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.
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:
OG1600
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
OG1610
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.
OG1630
6. Repeat adjustment for other side of deck.
OG1640
Floating Decks (988107, 108, 109, 116, 117)
1. Shut off the unit. See Shut Off on page 13 and "To stop
mowing."
OG1650
2. Lift deck by handle until hair pins can be removed from
height adjustment rods.
3. Set deck to desired cutting height (Figure 7).
4. Insert hair pins into appropriate holes on height
adjusting rods.
5. Repeat adjustment for other side of deck.
NOTE: It may be necessary to adjust cutting height in steps
to keep deck from binding.
GB - 15
Fixed Deck Cutting Heights
Inches (mm)
(38) 1.5
(64) 2.5
(90) 3.5
Figure 6
1 (25)
2 (51)
3 (76)
4 (102)
OG1380
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