17
Schweizer300C
MAINTENANCE AND REPLACEMENT OF PARTS
9
Changing Crystals
I
f
f
l
i
ght
t
i
mes
ar
e
get
t
i
ng
shor
t
er
,
bat
t
er
y
capaci
t
y
may
be
r
educed
(
memor
y
ef
f
ect
)
.
Ref
r
esh
t
he
bat
t
er
y
i
n
t
he
f
ol
l
owi
ng
way.
Tr
ansmi
t
t
er
Cr
yst
al
Transmitter
Fuselage
Recei
ver
Cr
yst
al
Battery Discharge
Hol
d
ski
ds
so
model
doesn'
t
l
i
f
t
of
f
t
he
gr
ound.
Spi
n
t
he
r
ot
or
s
unt
i
l
t
hey
al
most
st
op
(
about
2˜
3
mi
nut
es)
.
When
r
ot
or
s
have
al
most
st
opped,
l
ower
t
he
Thr
ot
t
l
e
St
i
ck,
and
st
op
t
he
di
schar
ge.
Char
ge
t
he
bat
t
er
y
as
per
P.
6.
Move
Thr
ot
t
l
e
St
i
ck
t
o
neut
r
al
posi
t
i
on
I
f
a bat
t
er
y i
s not
f
ul
l
y di
schar
ged bef
or
e i
t
i
s r
echar
ged,
t
he bat
t
er
y capaci
t
y i
s r
educed.
(
memor
y
ef
f
ect
)
To
cor
r
ect
t
hi
s
condi
t
i
on,
f
ul
l
di
schar
ge
of
t
he
bat
t
er
y
i
s
needed
f
r
om
t
i
me
t
o
t
i
me.
Under
nor
mal
condi
t
i
ons,
a
f
ul
l
di
schar
ge
shoul
d
be
per
f
or
med
af
t
er
ever
y
5
r
echar
ges.
I
f
bat
t
er
y
st
i
l
l
onl
y
del
i
ver
s
power
f
or
a
shor
t
t
i
me
when
f
ul
l
y
char
ged,
t
he
bat
t
er
y'
s
l
i
f
e
i
s
over
.
Change
t
o
a
new
bat
t
er
y.
If rotors have stopped completely, do not leave for long period of time.
This may cause the battery to over-discharge and make it unusable.
If battery is warm, allow to cool down before recharging.
R
e
f
e
r
e
n
c
e
1
2
3
One
band
cannot
be
used
by
t
wo
peopl
e
at
t
he
same
t
i
me.
Al
ways
use
uni
que
band.
Tr
ansmi
t
t
er
and
Recei
ver
cr
yst
al
s
shoul
d
use
t
he
same
band.
(
Abl
e
t
o
use
Fut
aba
FM72MHz
Hi
Band)
Swi
t
ch
power
OFF
when
changi
ng
r
ecei
ver
or
t
r
ansmi
t
t
er
cr
yst
al
s.
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