Troxler NTO Appendix A–7
A. MAINTENANCE & SER
ICE
6. Using the small, soft-bristled brush provided with the oven,
gently brush all soot from the turbine blades of the exhaust fan.
CAUTION
Use care when cleaning the turbine to prevent bending
the blades. If a blade is bent, the turbine will be
unbalanced, which will cause excessive vibration and
shorten the life of the fan.
7. Use the vacuum cleaner to clean the loosened soot from the
turbine. DO NOT insert the vacuum cleaner nozzle into the
exhaust fan intake.
CAUTION
To prevent bending the turbine blades, do not insert the
vacuum cleaner nozzle into the fan intake. If a blade is
bent, the turbine will be unbalanced, which will cause
excessive vibration and shorten the life of the fan.
8. Replace the plenum access panel and hand-tighten the three
captive thumbscrews.
9. Replace the outer access panel.