3-25
3-25
1.
1. Br
Brus
ush
h
2.
2. Com
Commut
mutato
atorr
1)
1) Go
Good
od
2)
2) Not
Not goo
good
d
502741
502741
(3)
(3) If the c
If the condit
ondition is no
ion is not good
t good, inser
, insert a sand pa
t a sand paper [
per [#400]
#400]
between the brush and
between the brush and commutator.
commutator.
(4)
(4) Poli
Polish the b
sh the brush s
rush surfa
urface by m
ce by moving
oving a sand
a sand paper
paper or
or
rotating commutator.
rotating commutator.
(5)
(5) Che
Check th
ck the thi
e thickn
ckness o
ess of bru
f brush.
sh.
(6)
(6) Blow t
Blow the dus
he dust out wi
t out with com
th compress
pressed air
ed air and cle
and clean the
an the
parts.
parts.
1.
1. Br
Brus
ush
h
2.
2. San
Sand pa
d paper
per
3.
3. Com
Commut
mutato
atorr
1
1
3
3
502742
502742
2
2
T
To
oo
ol
l
n
na
am
me
e
N
Nu
um
mb
be
err
S
Saan
nd
d
p
paap
pe
err
#
#4
40
00
0
CHAPTER 3 MOTOR
CHAPTER 3 MOTOR
17
17.. Tr
Trou
oubl
bles
esho
hoot
otin
ing
g
S
Sy
ym
mp
ptto
om
m
P
Po
ossssiib
blle
e
cca
au
usse
ess
S
So
ollu
uttiio
on
n
Motor does not start.
Motor does not start.
Low supply voltage
Low supply voltage
Charge battery and improve power supply
Charge battery and improve power supply
condition.
condition.
B
Bllo
ow
wn
n
ffu
usse
e
R
Re
ep
pllaacce
e..
E
Exxcce
esss
s
llo
oaad
d
R
Re
ed
du
ucce
e
llo
oaad
d..
FFaau
ulltty
y w
wiirre
e cco
on
nn
ne
eccttiio
on
n
R
Re
ep
paaiirr,
, o
or
r rre
e--ttiig
gh
htte
en
n w
wiirre
e cco
on
nn
ne
eccttiio
on
nss..
B
Brro
okke
en
n w
wiirre
e iin
n cco
on
nttrro
ol
l d
de
evviicce
e
R
Re
ep
paaiir
r o
or
r rre
ep
pllaacce
e..
B
Brro
okke
en
n w
wiirre
e iin
n ffiie
elld
d d
de
evviicce
e
R
Re
ep
paaiir
r o
or
r rre
ep
pllaacce
e..
B
Brro
okke
en
n w
wiirre
e iin
n aarrm
maattu
urre
e cco
oiill
R
Re
ep
paaiir
r o
or
r rre
ep
pllaacce
e..
Motor starts but does not
Motor starts but does not
run at rated speed.
run at rated speed.
Low supply voltage
Low supply voltage
Charge battery and improve power supply
Charge battery and improve power supply
condition.
condition.
FFaau
ulltty
y cco
on
nn
ne
eccttiio
on
n o
of
f aarrm
maattu
urre
e cciirrccu
uiitt
R
Re
ep
paaiir
r cco
on
nn
ne
eccttiio
on
nss..
Motor produces
Motor produces
Abnormal vibrations and
Abnormal vibrations and
noise.
noise.
D
De
effe
eccttiivve
e b
be
eaarriin
ng
gss
R
Re
ep
pllaacce
e b
be
eaarriin
ng
gss..
LLo
oo
osse
e m
mo
ou
un
nttiin
ng
g b
bo
ollttss
R
Re
ettiig
gh
htte
en
n b
bo
olltts
s aan
nd
d n
nu
uttss..
C
Co
on
nttaacct
t b
be
ettw
we
ee
en
n aarrm
maattu
urre
e aan
nd
d ffiie
elld
d cco
oiill
R
Re
ep
paaiir
r o
or
r rre
ep
pllaacce
e..
Bearing overheats.
Bearing overheats.
IIn
ncco
orrrre
ecct
t iin
nssttaallllaattiio
on
n
C
Co
orrrre
ecct
t iin
nssttaallllaattiio
on
n cco
on
nd
diittiio
on
n..
Severe external vibration
Severe external vibration
Remove the cause of vibration, or take
Remove the cause of vibration, or take
appropriate vibration-insulating measures.
appropriate vibration-insulating measures.
D
De
effe
eccttiivve
e
b
be
eaarriin
ng
gss
R
Re
ep
pllaacce
e..
O
Oiil d
l de
eg
grraad
daattiio
on o
n or
r ssh
ho
orrttaag
ge i
e in b
n be
eaarriin
ng
gss
R
Re
ep
pllaacce
e..
Содержание FB13PNT
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