Exmark 4500-420 Lawn Mower User Manual


 
Operation
have stopped before clearing blower assembly or
mower deck
3. To empty the hopper, rst shut off deck drive.
Lift up on the handle to open the door and
empty the hopper. If the unit is to be driven
onto a truck or trailer with the hopper full,
always back the unit up the ramp. This will
reduce the chance of rearward tip up. See the
Transporting section for additional information
regarding loading a unit on a truck or trailer.
4. Close and latch the door before continuing
mowing. Do Not engage the cutting blades while
the door is in the open position.
Tips for mowing conditions:
• When mowing in areas with sandy soil, use
low lift blades on the cutting deck and higher
cutting heights to minimize wear on the blower
components.
• When mowing in wet conditions, such as just after
a rain or in heavy dew, use low lift blades on the
cutting deck to minimize plugging of the blower.
• Maintaining a ground speed that does not pull
down the engine RPM will allow for the highest
productivity and best quality of cut. Bogging the
engine RPM down by going too fast will cause
plugging and quality of cut issues.
• When the hopper gets full, the sound of the
blower will change and there will be slight
blowout from the front right corner of the deck.
Emptying the hopper at this point will minimize
the potential for the tube to plug.
For units below Serial Number 600,000:
Anti-blowout kits are available for leaf collection.
They help to prevent “chasing” the leaves. To
reduce “plowing” leaves, raise the deck slightly.
On Triton: Raise front adjustable bafe to
reduce plowing. Lowering front adjustable bafe
may prevent “chasing”. Match discharge opening
to Ultra Vac intake for best performance.
Bagger Removal for Side Discharge
1. Shut off the deck drive, stop engine and wait for
all moving parts to stop. Remove key.
2. Remove the discharge tube by releasing the latch
at the blower. Slide the tube off the blower outlet
and remove the upper end from the hopper.
Figure 5
1. Hopper Assembly 4. Hairpin
2. Tube
5. Clevis Pin
3. Blower
3. Remove the belt cover by loosening the knobs.
CAUTION
The deck sheave will become very hot.
Touching a hot deck sheave can cause severe
burns.
Allow the deck sheave to cool completely
before removing the belt.
Figure 6
1. Hairpin 4. Belt shield
2. Chute pivot pin
5. Weight
3. Discharge chute 6. Knob
4. Pull the idler release handle and remove the belt
from the upper groove of the deck sheave.
5. Unlatch the front end of the blower. Pivot the
blower back and lift it off the deck.
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