Whisper 500 Battery Charging Manual
Document #0023 Rev C
SOUTHWEST WINDPOWER
April 2006
14
Install Tower Insert on Yaw Shaft
Part #
Part Description
Qty
IAC14A 5” tower insert
1
IAR98
M10x55 Grade 10.9 zinc bolt
3
IAR99
M10 zinc lockwasher
3
IAR43
M8x30 SS set screw
3
IAR17
M8 SS nylock hex nut
3
IAR29
4mm short arm allen wrench
1
IAR41
M10x25 SS hex bolt
6
IAR40
M10 SS lockwasher
6
Mounting Instructions
A) Check the fit and hole alignment of the tower
insert inside tower, before installing it on the
yaw shaft. The six holes you just drilled in the
tower pipe should line up with the six holes in
the tower insert. A maximum of 1.5mm
(1/16in) play is allowed. Tower Pipe or tube
must be tight against insert when the mount-
ing bolts are tightened.
B) Install the tower insert onto the yaw shaft.
Place the three M10x55 screws into the tower
insert and thread them into the yaw shaft. Be
sure to use the three M10 zinc lock washers
on these screws. Tighten with a 17mm
socket.
C) Finger-tighten the nylock nuts over the three
M8x30 set screws. Tighten the three M8x30
set screws on the upper holes using the sup-
plied allen wrench. After the set-screw is
tightened with the allen wrench, tighten the
nylock nut over the set-screw using a 13mm
deep socket. You must use a deep socket
with this nut because a regular socket will slip
off the nut before the nut is fully tight, and re-
sult in an unsafe attachment between the tur-
bine and tower.
Use 13mm
deep socket
