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Broco PC/A-5V2HR - Chapter 4 SCHEDULED MAINTENANCE; Section I. INTRODUCTION; Preventive Maintenance

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CHA
P
T
E
R
4
S
CH
E
DU
L
E
D
M
A
I
N
T
E
NANC
E
S
ec
t
i
on
I. I
N
T
R
O
DUC
T
I
O
N
4
-
1.
P
R
EVE
N
T
I
VE
M
A
I
N
T
E
NANC
E
.
P
r
e
v
ent
i
v
e
m
a
i
ntenan
c
e
i
s
the
r
e
s
pon
s
i
b
ili
t
y
of the
equ
i
p
m
ent ope
r
ato
r
.
P
r
e
v
ent
i
v
e
m
a
i
ntenan
c
e
s
hou
l
d be
c
ondu
c
ted
i
n a
cc
o
r
dan
c
e
w
i
th th
i
s
M
anua
l
and
c
on
s
i
s
t of
i
n
s
pe
c
t
i
ng,
s
e
r
v
i
c
i
ng, and
c
l
ean
i
ng. In
s
pe
c
t
i
on
s
w
ill
a
l
s
o
r
e
v
ea
l
the need fo
r
r
epa
ir
s
.
P
e
ri
od
i
c
L
i
m
i
ted
T
e
c
hn
i
c
a
l
In
s
pe
c
t
i
on
s
(
L
T
I
)
w
ill
be
r
equ
ir
ed to en
s
u
r
e the to
r
c
h
k
i
t
i
s
s
afe and
s
e
r
v
i
c
eab
l
e.
R
egu
l
ato
r
r
epa
ir
s
s
hou
l
d
on
l
y
be pe
r
fo
r
m
ed b
y
qua
li
f
i
ed te
c
hn
i
c
i
an
s
.
O
xy
gen
cy
li
nde
r
i
n
s
pe
c
t
i
on and te
s
t
i
ng
m
u
s
t on
l
y
be
c
ondu
c
ted
b
y
c
e
r
t
i
f
i
ed te
c
hn
i
c
i
an
s
.
P
r
i
o
r
t
o
c
ondu
c
t
i
ng
a
n
y
m
ai
n
t
e
n
a
n
ce, e
n
s
u
r
e
p
r
op
e
r
s
hu
t
do
w
n
p
r
o
ce
du
r
es a
r
e
f
o
ll
o
w
e
d
.
E
n
s
u
r
e
o
xy
g
e
n
cyli
nd
e
r
is s
hu
t
o
ff
a
nd
all
o
xy
g
e
n
ho
ses a
r
e
d
isc
onn
ec
t
e
d
.
A
l
w
ays
d
isc
onn
ec
t
t
h
e
t
o
r
c
h
a
nd
s
t
r
ike
r
p
la
t
e
po
w
e
r
ca
b
les
f
r
o
m
t
h
e
b
a
tt
e
r
y
w
h
e
n
t
h
e
t
o
r
c
h
is
no
t
i
n
u
se.
A
l
w
ays
u
se a clea
n
,
d
r
y,
o
il
-f
r
ee cl
o
t
h
t
o
w
i
p
e a
n
y
p
a
r
t
o
f
t
h
e
t
o
r
c
h
ki
t
.
M
il
d
s
o
a
p
a
nd
w
a
t
e
r
m
ay
b
e
u
se
d
t
o
w
as
h
c
o
m
pon
e
n
t
s.
N
eve
r
u
se c
o
m
p
r
esse
d
ai
r
t
o
pu
r
g
e a
n
y
p
a
r
t
o
f
t
h
e
o
xy
g
e
n
sys
t
e
m
as
o
il c
on
t
a
m
i
n
a
t
i
on
m
ay
r
es
u
l
t
.
A
l
w
ays
u
se
o
xy
g
e
n
.
A
l
w
ays
r
e
p
lace a
n
y
w
o
r
n
o
r
d
a
m
a
g
e
d
p
a
r
t
s
w
i
t
h
a
u
t
ho
r
i
z
e
d
r
e
p
lace
m
e
n
t
p
a
r
t
s.
A
l
w
ays
u
se
V
i
t
on
o
-
r
i
ng
s
on
ly.
a.
A
fte
r
ea
c
h u
s
e,
w
i
pe the to
r
c
h a
ss
e
m
b
l
y
,
s
t
ri
k
e
r
p
l
ate a
ss
e
m
b
l
y
, batte
r
y
, o
xy
gen
cy
li
nde
r
, and
r
egu
l
ato
r
w
i
th a
c
l
ean, d
r
y
, o
il-
f
r
ee
c
l
oth.
b.
R
e
m
o
v
e the
c
o
ll
et nut,
c
o
ll
et,
c
o
ll
et
w
a
s
he
r
, f
l
a
s
h a
rr
e
s
to
r
, and f
l
a
s
h a
rr
e
s
to
r
sc
r
een. In
s
pe
c
t fo
r
da
m
age and
w
ea
r
.
C
l
ean,
r
ep
l
a
c
e a
s
ne
c
e
ss
a
r
y
, and
r
ea
ss
e
m
b
l
e.
c
.
B
efo
r
e and afte
r
ea
c
h u
s
e,
c
ondu
c
t a
c
l
o
s
e
i
n
s
pe
c
t
i
on of the
c
ab
l
e
s
and ho
s
e
s
.
C
he
ck
fo
r
c
ut
s
,
bu
r
n
s
, o
r
an
y
othe
r
s
i
gn of da
m
age o
r
w
ea
r
.
A
fte
r
e
v
e
r
y
u
s
e,
w
i
pe do
w
n a
ll
c
ab
l
e
s
and ho
s
e
s
w
i
th a
c
l
ean, o
il-
f
r
ee
c
l
oth.
d. If the to
r
c
h a
ss
e
m
b
l
y
ha
s
been u
s
ed and/o
r
t
r
an
s
po
r
ted unde
r
w
ate
r
, d
i
p the to
r
c
h
i
n f
r
e
s
h
w
ate
r
w
h
il
e dep
r
e
ss
i
ng the
v
a
l
v
e
l
e
v
e
r
to
c
l
ean the e
x
te
ri
o
r
and f
l
u
s
h the
i
nte
ri
o
r
.
e. If an
y
r
od
s
ha
v
e been ta
k
en
i
nto
s
a
l
t
w
ate
r
,
ri
n
s
e
w
i
th f
r
e
s
h
w
ate
r
and
l
et d
r
y
befo
r
e
r
etu
r
n
i
ng to
s
to
r
age.
f. If an
y
r
od
i
gn
i
te
r
s
ha
v
e been
i
n
s
a
l
t
w
ate
r
,
ri
n
s
e the
m
w
i
th f
r
e
s
h
w
ate
r
and d
r
y
befo
r
e
r
etu
r
n
i
ng to
s
to
r
age.
g.
A
n
y
to
r
c
h,
r
od o
r
i
gn
i
te
r
w
h
i
c
h ha
s
be
c
o
m
e
w
et
m
u
s
t be
c
o
m
p
l
ete
l
y
d
r
y
befo
r
e be
i
ng p
l
a
c
ed
i
nto
l
ong te
r
m
s
to
r
age.
F
l
u
s
h the
i
nte
ri
o
r
w
i
th o
xy
gen, a
r
gon, o
r
n
i
t
r
ogen ga
s
to d
i
s
p
l
a
c
e
r
e
s
i
dua
l
m
o
i
s
tu
r
e.

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