SELVA MARINE Kingfish 25, Руководство по обслуживанию

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4-9
TRBL
SHTG
Troubleshooting
Troubleshooting the PTT unit
Troublesho
oting
con
s
ists o
f the fo
llo
wing 4 items:
Symp
tom 1
: Specific trouble condit
ions
Symp
tom 2
: Trouble condit
ions of an
area o
r individual
part
Ca
use 1
: Troub
le cause
s
of
symptom 2
Ca
use 2
: Troub
le cause
s
of
cause 1
—:
No
t applicable
Sy
mptom 1
: PTT unit do
es not o
perate.
Sy
mp
to
m
2
C
au
se
1
C
au
se
2
C
he
ckin
g
st
ep
Se
e
pa
g
e
PT
T re
lay
d
oes no
t
ope
ra
te
Blown f
u
se
—
Chec
k the fuse.
5
-5
5-
18
A-2 A-4
PTT s
witch malfunc
tion
—
Chec
k the PTT sw
itch.
5
-30
PTT relay
malfunc
tion
—
Chec
k the PTT relay.
5-29
Shor
t,
op
en
, or
loose con
nect
ion o
f t
he
w
irin
g ha
rn
es
s
—
Ch
ec
k fo
r wir
ing
ha
rn
e
ss co
n
tin
uit
y
be
tw
ee
n
the PTT switc
h
and
PTT
relay.
A-2 A-4
PT
T mot
o
r doe
s no
t
ope
ra
te
PTT mot
o
r malf
un
ct
io
n
—
Che
c
k t
he PTT mo
to
r.
9-
63
Shor
t,
op
en
, or
loose con
nect
ion in
PTT
m
o
to
r c
ircu
it
—
Ch
ec
k fo
r wir
ing
ha
rn
e
ss co
n
tin
uit
y
be
tw
ee
n
th
e PT
T mo
to
r an
d
PT
T
re
la
y
te
rm
in
a
l.
A-2 A-4
PT
T fl
uid p
ressur
e do
es
not increase
Man
u
a
l
valve op
en
ed
M
anu
al va
lve malf
un
ct
io
n
C
he
ck t
he ma
nua
l
va
lve
.
9-
76
Air in PTT un
it
—
B
le
ed t
he PTT un
it
.
9
-7
6
Insufficient PTT
fluid
—
Add s
u
fficient PTT fluid.
10-14
PTT flu
id lea
k
a
g
e
—
Che
c
k t
he PTT f
luid le
akage
.
1
0-
14
C
log
ge
d
flu
id
pa
ss
ag
e
—
Disasse
mble
and
che
c
k t
he PTT u
n
it
.
9
-6
6
9-
73
—
C
h
e
c
k
th
e
filt
er
fo
r
clo
g
an
d
dir
t.
9
-7
0
—
C
he
ck t
he valves fo
r da
mag
e
.
9
-7
0
—
C
he
ck t
he f
luid p
a
ssa
ge f
o
r
clo
g
.
2
-1
5
Ge
ar p
ump
ma
lf
unct
ion
—
C
he
ck t
he ge
ar
p
ump
o
pe
rat
io
n.
9-
70