Exmark ULTRAVAC 126-6122 Operator's Manual page 11

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 UltraVac 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 UltraVac at this point will minimize
the potential for the tube to plug.
Collection System Removal for Side
Discharge
1. Empty the hopper.
CAUTION
The hopper assembly is heavy when it is full,
which may make it difficult to remove the
hopper assembly from the unit. The entire
hopper assembly may fall, which may cause
injury.
Prior to removing the hopper assembly from
the unit, first empty the contents.
2. Disengage the PTO, stop engine and wait for all
moving parts to stop. Remove key and engage
parking brake.
3. Remove the discharge tube by releasing the latches
at the blower. Slide the tube off the blower outlet
and remove the upper end from the hopper.
1. Hopper
2. Reinforced bumpers
3. Clevis pin
4. Caster arm weight
5. Hairpin
4. Remove the knob from the belt cover bracket and
take off the belt cover.
1. Belt cover bracket
2. Belt cover
3. Knob
11
Operation
Figure 4
6. Belt cover
7. Blower
8. Tubes
9. Bag
Figure 5
4. Belt
5. Deck sheave
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