44
Maintenance
PROBLEM
CAUSE
SOLUTION
Motor runs but pump
does not inject or
dosing is lower than
nominal
- Pump not primed
- Prime the pump by opening the priming
valve or filling the head with the liquid to
be injected
- Dirty or damaged suction or
discharge valve
- Clean or change valves
- Dirty suction filter
- Clean filter
- Air enters the suction pipe
- Check tightness of connection points
- Cavitation in suction
- Increase pipe diameter.
- Reduce the suction pipe length.
- Reduce speed by using a variator.
- Use a less viscous liquid.
Pump drips liquid
from hole in bottom of
cylinder
- Damaged diaphragm
- Change diaphragm
Содержание DOSmart AC
Страница 1: ...ENGLISH ...
Страница 39: ...39 Maintenance 55606 55605 59309 59353 55655 M12 73654 M2 73615 M12 C 55202 55150 29620 55149 55 100 55309 ...
Страница 46: ......