Test Running - Dustcontrol DC 11 Serie Instrucciones Originales

Test running

Th e unit is normally adjusted to a nominal pressure.
Th e pressure can be changed by adjusting the vacuum
relief valve. Please note that it cannot be exceed the max
pressure for the unit. For the 7.5 kW DC 11-Module
the pressure can be adjusted over the stated max pres-
sure 19 kPa, up to 23 kPa, under the condition that
the highest rpm, level 3 (70 Hz) is blocked.
1. Verify that the power is locked out.
2. Check that no persons can be injured if the pump
starts and that all outlets are closed.
3. Connect a manometer for the negative pressure
calibrated to –50 kPa to the suction side as close
to the pump as possible.
4. Power up the pump and listen carefully for the
following sounds: A high-pitched whine is normal
Test running DC Green System
Constant speed:
Th e pressure can be adjusted by adjusting the vacuum
relief valve, see Service
To check the regulating function:
1. All outlets must be shut down. Connect the suction
equipment which has the smallest dimension/longest
hose.
Service
2014-10-22
from the impeller blades. As the pump draws
cooling air through the vacuum relief valve a
weak hissing should be heard. Check the rotation
direction of the pump.
5. Measure the pressure. Compare with the dimension
point. Th e pressure can be adjusted by adjustment
of the vacuum relief valve, see page 27.
6. Check the function and tightness of the connected
exhaust system.
7. It is normal that the pump gets hot during
operation
8. When the fi lter is being cleaned, a number of
powerful air pulses should be heard over a four
minute period with approx. 20 seconds interval
2. Th e system should then run up and adjust itself to
the working pressure.
3. Un-plug the suction equipment.
4. Th e system should then after about one minut run
down to the saving mode.
Service points
1. Lubrication of lower bearing P and S models (always)
2. Lubrication and review of vacuum valve (always)
(not fi tted to S models)
3. Filter change (fi ne fi lter, always)
4. Micro fi lter (optional)
Constant speed:
2a. Lubrication and review of vacuum valve (always)
(not fi tted to S models)
DC Green System:
2b. Checking the sensors
3. Filter change (fi ne fi lter, always)
4. Micro fi lter (optional)
DC 11-Module - 40 Part No 94153-D