into the sleeve to remove the rotor from the shaft of the generator(see fig.8). After repairing
the imbalance, reassemble. Torque should less than 0.02N.m.
6. Maintenance of the wind generator
The products are divided into two types: common product and high quality product (no
maintenance). The common product needs the following maintenance regularly:
6.1. Check, clean and lubricate all rotating parts once per year.
6.2 Before rainy season or winter depending on climate, clean outside and paint anti-rust grease
on all fixed connecting cables and tower parts once a year.
6.3 Lubricate and maintain bearing of generator once per operating year.
6.4. Clean, remove rust and paint all exposed parts once every two years.
The maintenance of high quality product (AAA)
a. Exposed parts are made of stainless steel and have been treated by special long life
rust-protection treatment, so the outside of those parts do not need maintenance.
b. The generator has high grade bearings and high grade lithium grease. The bearings need to
be checked after operating for 5 years. If it is necessary, add some lithium grease to the
bearings.
6.5 Inspect ground rod connection to the turbine mast to ensure the wire is still in place and
secure.
7. Troubleshooting
The wind generator is designed and manufactured to be trouble-free and low-maintenance. If
the installation and operation are correct, failures will not appear under normal conditions. In
case of failure, please consult following table.
Trouble
Reason
Solution
Wind
generator
vibrating strongly
1. Steel cable guy line is loose.
2. Hub blade bolts are loose.
3. Blade is defective caused by
outside force.
4. Ices over on the surface of blades,
causes imbalance.
1. Tighten the appropriate steel guy line.
2. Tighten the loose parts.
3. Replace with a new blade and adjust the
rotor balance if required.
4. Eliminate the attached ice. Wax the
blades to prevent future ice attachment.
Direction regulating
is ineffective
1. There is too much greasy dirt in
the rotating body.
2. Rotating part is deformed by
outside force.
3. The
clearance
between
the
vertical shaft and sleeve is too
small, or there is no movable axial
clearance.
1. Clear away the dirt and grease. Replace
with fresh grease.
2. Recover and correct the deformation.
unusual noise
1. Fixed parts are loose
2. Generator bearing is damaged
3. Wind rotor is rubbing with other
parts.
1. Put the wind turbine down on the ground,
check every fixed part, and take
appropriate measures.
2. Replace the damaged bearing.
3. Checking and eliminate the trouble.
The rotating speed
of the wind rotor is
obviously reduced
1. Blade pitch control is ineffective.
2. Stator winding is short
–circuited
or output circuit is shorted.
1. Check and eliminate the trouble, then
lubricate.
2. Find out short circuit position, split the
lines and isolate them..