Exmark SD270SB20 Operator's Manual page 18

Operation
Note: If the unit creeps forward or rearward
when the drive bail is in the neutral position, stop
the engine and adjust the self-propel drive cable
(see Adjusting the Self-Propel Drive in the
Adjustments section).
Operating the Blade Control Lever
1. Start the engine.
2. Push and hold the blade control lock lever forward
to release the blade control bail (Figure 9).
Figure 9
1. Blade control lock lever
(locked position)
2. Push
3. Squeeze the blade control bail against the handle
and release the blade control lock lever; the blades
will engage.
4. Release the blade control bail to disengage the
blades. The blade control lock lever will reset to
lock the blade control bail.
Operating the Slicer Seeder
DANGER
The rotating blades under the machine are
dangerous. Blade contact can cause serious
injury or kill you.
Do Not put hands or feet under the machine
when the blades are engaged.
3. Blade control bail
4. Squeeze against handle
DANGER
When the machine is in operation, contact with
rotating or moving parts will severely injure
hands and feet.
• Before adjusting, cleaning, inspecting,
troubleshooting, or repairing the machine,
stop the engine and wait for all moving
parts to stop. Disconnect the wire from the
spark plug and keep it away from the plug to
prevent someone from accidentally starting
the engine.
• Stay behind the handle and away from the
seed mixer and cutting blades while operating
the machine.
• Keep face, hands, feet, and any other part of
your body or clothing away from concealed,
moving, or rotating parts.
1. If seeding, fill the seed hopper and set the seeding
rate gauge (see Adjusting the Seeding Rate
Gauge section).
2. Adjust the cutting blade depth to the desired
setting (see Adjusting the Blade Cutting Depth
section).
3. Start the engine.
4. Set the engine throttle to the "FAST" position.
5. Push down on the handle to raise the front wheels
slightly off the ground.
6. Squeeze the blade control bail against the handle
to engage the blades. Slowly lower the front
wheels to the ground, allowing the blades to
gradually work into the grass and soil.
7. If seeding, push the seeder control lever forward
to start the seed flow.
Note: There is no need to turn the seed flow
control lever off and on for each turn. The seed
flow will slow and/or stop when the machine is
stopped or slowed for turning. To reduce seed
loss, raise the front wheels as the machine is
turned.
Note: The machine will seed at the same rate
going forward or rearward.
Note: If there is excessive thatch, it may be
necessary to remove the thatch prior to seeding.
8. Engage the self-propel drive bail to begin
operating.
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