(2) Remove four flathead screws H99
that secure mounting plate A4 to
velometer housing 099 Do not lose
four flat washers H98 that are used
as spacers between mounting plate
A4 and velometer housing 099.
(3) Remove two flathead screws H97 and
l i f t wind vane support A8 from
mounting plate A4.
c. Reassembly of Wind Vane.
(1) Assemble bearing plate A5, bearing
02, wind vane 08, and wind vane sup-
port A8. Secure with two roundhead
screws H96 and the hexagonal nut
(2) Place the assembled items ((1)
above) on mounting plate A4, and
secure with two flathead screws H97.
(3) Place the assembled items ((2)
above) on velometer housing 099. Be
sure to use four flat washers H98 as
spacers between mounting plate A4
and velometer housing 099. Secure
the assembled items to velometer
housing 099 with four flathead screws
H96 Roundhead screw
(4) Slide wind vane cover A3 over
H97 Flathead screw
A3 Wind vane cover
mounting plate A4.
H98 Flat washer
A4 Mounting plate
A5 Bearing plate
H99 Flathead screw
d. Disassembly of Velometer M1.
A8 Wind vane support
Caution: Do not disassemble the velometer
in a drafty location.
A99 Range-selector knob
08 Wind vane
(1) Unscrew and remove range-selector
099 Velometer housing
*1 Flathead screw
knob A99; do not lose the washer
H93 Hexagonal nut
*2 Hexagonal nut
H94 Phillips-head screw
(3) that is under the knob.
H95 Phillips-head screw
(2) Remove four Phillips-head screws
*Arbitrary number added for identification purpose.
H95 from the corners of backplate
Figure 5-2. Anemometer, exploded view.
(3) Gently pry backplate A97 from ve-
lometer housing 099; be careful not
brush. If the vane, as it moves, touches the
to damage gasket A98.
wall, loosen screws A and B that mount the
(4) Remove Phillips-head screws H94
bracket to the velometer mechanism and repo-
that secure the velometer mechanism
sition the vane so that it moves freely. Loos-
to backplate A97.
ening screw A will allow the bracket to pivot
in a horizontal plane; loosening screw B will
allow the bracket to pivot in a vertical plane.
Remove dust by brushing the velometer mech-
Retighten the screws.
anism carefully with a clean camel's-hair