Bergey Powersync II - X. Trouble-Shooting Problems; Broken Furling Cable; Unusual Blade Sound; Rotor Imbalance

Owner’s Manual BWC EXCEL 10 Turbine
Page 31
VIII. Trouble-Shooting Problems
The following guide can help to pin-point the cause of operational problems with the
Bergey EXCEL 10 wind turbine and the Powersync II inverter For problems or
symptoms not found in the following listing please contact the Service Department at
Bergey Windpower Co. at Tel. No. 1-405-364-4212, Telefax No. 1-405-364-2078, or E-
mail: service@bergey.com
Problem
Cause(s)
Diagnosis
Remedy
Broken furling cable
1. Over-tightening of
furling cable
2. Jammed cable
furling cable conduit
3. Leaving turbine
furled for long periods
4. Swivel not installed
or not working
When replacing cable
check for free play
inside furling cable
conduit. Check swivel.
Replace cable and
conduit as indicated.
Oil stain at rear of
nacelle
Tail damper failure
Check for damper
effectiveness by furling
the turbine and then
rapidly unwinding the
furling cable. It should
take at least three (3)
seconds for the tail to
return to the straight
position.
If damper fails the test,
the turbine should be
furled during high winds
until the damper is
replaced.
Turbine makes an
unusual blade sound,
such as whistling or
buzzing
1. Damaged blade
leading edge tape
2. Blade (pultrusion)
structural damage
1. Have leading edge
tape inspected
2. Have blades
inspected. Cracks
outboard of the molded
hub can lead to blade
failure.
1. Replace tape as
necessary
2. If blade damage is
suspected, the turbine
should be furled until it
is inspected. Contact
your dealer.
Rotor is unbalanced,
causing the turbine to
move slightly back and
forth as it spins
1. Uneven ice build-up
on blades
2. Blade damage
1. Ice on turbine and
tower. Turbine ran
smoothly before ice
storm. Slow rotor
speed.
2. No ice. Turbine ran
smoothly before
1. Do nothing – ice will
dislodge in a few days.
No need to furl the
turbine.
2. If blade damage is
suspected, the turbine
should be furled until it
is inspected. Contact
your dealer.