Exmark BR270KC36 Operator's Manual page 20

Operation
Figure 11
1. Caster wheel tube
2. Positions to achieve 1/8
inch (3 mm) increments
6. Raise or lower the caster wheel tube to achieve the
sweep area as stated in Checking the Sweeping
Path. Select any hole combination that is in
alignment to place and latch the retaining pin;
match the same position on the other side.
7. For fine tuning adjustments, slide the adjuster
sleeve one pin hole location up or down on the
caster wheel tube to adjust the broom height in
1/8 inch (3 mm) increments (reference Figure 11).
Repeat for the other caster wheel.
• To raise the broom in 1/8 inch (3 mm)
increments, slightly raise the adjuster sleeve
and insert the pin into the next pin hole below
the current hole used.
• To lower the broom in 1/8 inch (3 mm)
increments, slightly lower the adjuster sleeve
and insert the pin into the next pin hole above
the current hole used.
8. Once the desired height is reached, secure the pin
on each caster wheel. Recheck the sweeping area.
Adjusting Broom Side Angle
1. Disengage the broom and stop the engine.
2. Wait for all moving parts to stop.
3. Push the lever down using the RH thumb (see
Figure 4).
4. Squeeze the left wheel clutch lever to the handle
and push the broom housing to the desired angle;
3. Pin
4. Adjuster sleeve
the broom can rotate 19 degrees to the right or
left or straight ahead.
5. Once the broom is positioned, release the broom
angle lever. Release the left wheel clutch lever and
make sure the broom is locked into place.
Clearing a Clogged Broom
WARNING
The rotating broom could cause serious injury.
Always use caution when cleaning the broom.
• If the broom becomes clogged, stay in the
operating position and release the left hand
traction drive lever. While engaging the broom,
push down on the handles to raise the front of
the machine a few inches (centimeters) off the
pavement. Then lift the handles quickly to bump
the front of the machine on the pavement. Repeat
if necessary.
• If you cannot unclog the broom by bumping the
front of the machine:
– Park the machine on level ground. Stop
engine, wait for all moving parts to stop, and
remove the spark plug wire(s).
– Sharp objects can become entangled in
bristles. Use gloves and caution when cleaning
out the broom of foreign objects; not bare
hands.
Preventing Freeze-up
• In snowy and cold conditions, some controls and
moving parts may freeze. Do Not use excessive
force when trying to operate frozen controls.
If you have difficulty operating any control or
part, start the engine and let it run for a few
minutes.
• After using the machine, let the engine run
for a few minutes to prevent moving parts
from freezing. Engage the broom to clear any
remaining snow from inside the housing. Stop
the engine and wait for all moving parts to stop,
and remove the spark plug wire(s). Remove all
ice, snow, or other debris from the machine.
• Reconnect spark plug wire(s). With the engine
switch in the "OFF" position, pull the recoil
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