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Broco PC/A-5V2HR - Chapter 5 TROUBLESHOOTING; Section I. OXYGEN SYSTEM MALFUNCTIONS; Oxygen Leaks

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CHA
P
T
E
R
5
T
R
O
UB
L
ES
H
OO
T
I
N
G
Th
is
gu
i
d
e is i
n
t
e
nd
e
d
t
o
assis
t
i
n
d
e
t
e
r
m
i
n
i
ng
t
h
e
p
r
ob
a
b
le ca
u
ses
o
f
t
o
r
c
h
m
al
f
un
c
t
i
on
s a
nd
t
h
ei
r
ass
o
cia
t
e
d
r
e
p
ai
r
s.
Fo
r
eac
h
po
t
e
n
t
ial
p
r
ob
le
m
i
d
e
n
t
i
f
ie
d
a
p
r
ob
a
b
le ca
u
se a
nd
r
ec
o
mm
e
nd
e
d
r
e
p
ai
r
p
r
o
ce
du
r
e is lis
t
e
d
.
S
ec
t
i
on
I.
O
XY
G
E
N
SYS
T
E
M
M
A
LF
UNC
T
I
O
N
S
5
-
1.
O
XY
G
E
N
L
E
AK
S
.
T
a
b
le 5
-
1.
T
r
oub
les
hoo
t
i
ng
O
xy
g
e
n
L
eaks
T
YPE
O
F
P
R
O
B
L
E
M
/
M
A
L
F
UNC
T
I
O
N
P
R
O
BAB
L
E
C
A
U
SE
R
E
C
O
MM
E
ND
E
D
R
EPA
I
R
P
R
O
C
E
DUR
ES
1.
O
XY
G
E
N
L
EAKS
A
T
T
H
E
C
O
LL
E
T
NU
T
.
2.
O
XY
G
E
N
L
EAKS
A
T
T
H
E
C
O
N
T
R
O
L
VA
L
VE
NU
T
.
3.
T
H
E
O
XY
G
E
N
VA
L
VE
D
O
ES
N
O
T
S
HU
T
O
FF
A
LL
T
H
E
W
AY
.
a.
T
he
c
utt
i
ng
r
od not
s
eated aga
i
n
s
t the
neop
r
ene
w
a
s
he
r
.
O
R
b.
T
he
c
o
ll
et
w
a
s
he
r
m
a
y
be d
ir
t
y
,
w
o
r
n,
da
m
aged, o
r
m
i
ss
i
ng.
a.
T
he
c
ont
r
o
l
v
a
l
v
e nut
i
s
l
oo
s
e.
b.
T
he
v
a
l
v
e nut o
-ri
ng
ga
sk
et
i
s
p
i
n
c
hed o
r
da
m
aged.
c
.
T
he
c
ont
r
o
l
v
a
l
v
e nut
o
r
v
a
l
v
e bod
y
th
r
ead
s
a
r
e da
m
aged.
a.
T
he
r
ubbe
r
ga
sk
et
i
s
d
ir
t
y
o
r
w
o
r
n.
b.
T
he
v
a
l
v
e
s
te
m
o
-ri
ng
i
s
d
ir
t
y
o
r
w
o
r
n.
c
.
T
he
v
a
l
v
e
s
te
m
w
a
s
he
r
i
s
d
ir
t
y
o
r
w
o
r
n.
d.
T
he
v
a
l
v
e
s
te
m
i
s
w
o
r
n.
e.
T
he
v
a
l
v
e
s
te
m
w
a
s
he
r
Loo
s
en the
c
o
ll
et nut 1/2 tu
r
n
CC
W
.
F
ir
m
l
y
s
eat the
r
od
and t
i
ghten the
c
o
ll
et nut. If the
l
ea
k
pe
r
s
i
s
t
s
,
r
e
m
o
v
e the
c
o
ll
et nut,
c
o
ll
et, and
c
o
ll
et
w
a
s
he
r
.
C
l
ean o
r
r
ep
l
a
c
e the
c
o
ll
et
w
a
s
he
r
. If the
c
o
ll
et
w
a
s
he
r
i
s
w
o
r
n and a ne
w
one
i
s
not a
v
a
il
ab
l
e, and on
l
y
a
s
a te
m
po
r
a
r
y
/e
x
ped
i
ent
r
e
m
ed
y
, tu
r
n the
w
a
s
he
r
o
v
e
r
and
r
ep
l
a
c
e
w
i
th the
un
w
o
r
n fa
c
e e
x
po
s
ed.
a.
P
a
r
t
i
a
ll
y
un
sc
r
e
w
the
c
ont
r
o
l
v
a
l
v
e nut, then
r
e
-
t
i
ghten a
s
de
sc
ri
bed
i
n the
c
ont
r
o
l
v
a
l
v
e
r
e
-
a
ss
e
m
b
l
y
p
r
o
c
edu
r
e
s
.
b.
R
e
m
o
v
e the
v
a
l
v
e nut.
R
e
m
o
v
e the o
-ri
ng ga
sk
et
f
r
o
m
the
v
a
l
v
e nut,
i
n
s
pe
c
t and
r
ep
l
a
c
e
i
f ne
c
e
ss
a
r
y
.
c
.
R
e
m
o
v
e the
c
ont
r
o
l
v
a
l
v
e nut and
i
n
s
pe
c
t the
th
r
ead
s
. In
s
pe
c
t the
c
ont
r
o
l
v
a
l
v
e bod
y
th
r
ead
s
.
R
ep
l
a
c
e pa
r
t
s
a
s
ne
c
e
ss
a
r
y
.
a.
R
e
m
o
v
e and
c
l
ean o
r
r
ep
l
a
c
e a
s
needed.
b.
F
o
ll
o
w
c
ont
r
o
l
v
a
l
v
e d
i
s
a
ss
e
m
b
l
y
p
r
o
c
edu
r
e
s
to
r
e
m
o
v
e the
v
a
l
v
e
s
te
m
.
C
l
ean o
r
r
ep
l
a
c
e the o
-ri
ng
a
s
needed.
c
.
F
o
ll
o
w
c
ont
r
o
l
v
a
l
v
e d
i
s
a
ss
e
m
b
l
y
p
r
o
c
edu
r
e
s
to
r
e
m
o
v
e the
v
a
l
v
e
s
te
m
w
a
s
he
r
.
C
l
ean o
r
r
ep
l
a
c
e a
s
needed.
d.
R
ep
l
a
c
e the
v
a
l
v
e
s
te
m
and
i
n
s
ta
ll
a ne
w
o
-ri
ng.

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