April 2006
SOUTHWEST WINDPOWER
36
Document #0023 Rev C
Whisper 500 Battery Charging Manual
TABLE: SYMPTOMS OF MECHANICAL PROBLEMS
a. Ice in generator, or uneven ice on
propeller
b. Debris between rotor and stator
c. Loose or high magnet
d. Bad bearing
i. Wait for warm weather
i. Turn propeller gently by hand and
blow or use piece of paper to
dislodge debris
i. Remove rotor and re-glue magnet
i. Replace bearing
a. Same as above, except more likely
to be high magnet or bad bearing.
b. Swelled wire keepers due to high
moisture
i. Same as above
i. Contact factory. Stator needs
re-varnishing.
a. Ice on propeller
b. Dirty propeller
c. Eroded leading edge or damaged
leading edge tape
d. Split, warped or damaged prop
e. one or more blades on backwards
a. Blades on backwards.
(See blade installation)
a. Propeller out of balance
b. Propeller not tracking
c. Rotor (magnet can) out of balance
d. blade plate out of balance
i. Prop will eventually shed ice,
leave running unless excess vibration
i. Clean with soap or bug cleaner
i. Refinish prop and replace tape
i. Replace or repair propeller
i. See blade installation
i. Turn blades over. Leading edge
advances clockwise from upwind
view.
i. Balance or replace propeller
i. Replace mounting plate
ii. Shim at mounting bolts
iii. Replace propeller
i. Send to factory or balancing shop
i. Send to factory or balancing shop
1. Propeller is stationary, even in
high winds
2. Propeller will not turn at all except
in high wind, scraping or rubbing
sound at low rpm, always stops at
same propeller position
3. Propeller is harder starting, output
is lower & there is more propeller
noise than usual. Seems out of
balance.
4. Propeller turns a little, never starts
5. Tail, generator and tower vibrate
or shake at all or some wind
speeds
i. Retighten mounting hardware, use
lock tight or equivalent
i. Repair as required
i. Replace bearings
i. Replace shaft (spindle)
a. Generator loose in tower
b. Loose rotor (magnet can) on shaft
loose tail, missing rubber bumper,
wires slapping inside of tower,
governor pivot bolt loose
c. Worn bearings
d. Shaft (spindle) broken
6. Rattle or clunking from generator
Symptom
Possible Cause
Correction
