SQFlex Service Instructions

20 / 60
Mechanical problems
Fault Cause Remedy
1. Propeller is stationary, even in
high winds.
• Ice in wind turbine, or uneven
ice on propeller.
• Debris between rotor and stator.
• Loose magnet.
• Worn-out bearing.
• Remove ice, or wait for warm
weather.
• Turn propeller gently by hand
and blow or use piece of paper
to dislodge debris.
• Contact distributor.
• Contact distributor.
2. a) Propeller will not turn at all
except in high wind
b) Scraping or rubbing sound at
low rpm
c) Propeller always stops in the
same position.
• Same as above.
• Swelled wire keepers due to
high moisture.
• Same as above.
• Contact distributor.
3. a) Propeller is difficult to start
b) Output is low
c) more propeller noise than
usual.
d) Propeller seems out of balance.
• Ice on blade.
• Dirty blade.
• Split, warped or damaged
blade.
• One or more blades fitted
wrongly.
• Remove ice, or wait for warm
weather.
• Clean with soap or bug
cleaner.
• Replace broken or damaged
blade.
• Fit blade(s) correctly.
4. Propeller turns a little, but never
starts properly.
• Blades fitted wrongly. • Fit blades correctly. Leading
edge should move clockwise
when viewing propeller from
the front.
5. Tail, wind turbine and tower
vibrate.
• Blade out of balance.
• Blade not tracking.
• Contact distributor.
6. Rattling or clunking sound from
wind turbine.
• wind turbine loose in tower.
• Loose rotor (magnet can) on
shaft, loose tail, missing rubber
bumper, wires slapping inside
of mast, governor pivot bolt
loose.
• Worn bearings.
• Shaft broken.
• Retighten mounting screws.
Use Loctite or equivalent
thread-locking compound.
• Repair as required.
• Contact distributor.
• Contact distributor.
sqflex_SI_US_WG.book Page 20 Thursday, October 1, 2009 3:27 PM