TUNING
THE
SECOND
STAGE
1.
Prior
to
tuning
the
second
stage,
check
the
following
items:
a.
The
demand
diaphragm
(21)
,
purge
cover
(31)
and
cover
ring
(30)
should
be
properly
installed
into
the
housing
(1)
,
with
the
Front
cover
ring
(30)
ghtened
un l
secure.
b.
Connect
an
In
‐
Line
Adjustment
Tool
between
the
low
pressure
hose
and
coupling
(2)
.
c.
The
mouthpiece
(27)
should
be
cleaned
and
disinfected
with
warm,
soapy
water.
!
NOTE:
While
pressurized,
the
slo ed
blade
of
the
In
‐
Line
Tool
will
be
held
away
from
the
ORIFICE
(3)
and
will
therefore
need
to
be
pushed
inward
and
held
while
turning
the
ORIFICE
(3)
in
either
direc on.
Locate
the
slo ed
head
of
the
ORIFICE
(3)
by
touch
before
a emp ng
any
adjustment.
Clockwise
turns
of
the
In
‐
Line
Adjustment
Tool
turns
the
ori
fi
ce
(3)
in
toward
the
seat
(5)
increasing
the
opening
e
ff
ort.
Counterclockwise
turns
of
the
In
‐
Line
Adjustment
Tool
turns
the
ori
fi
ce
(3)
out
away
from
the
seat
(5)
reducing
the
opening
e
ff
ort.
2.
Pressurize
the
regulator
with
a
pure
air
source
of
3,000
PSI
(206
BAR)
and
listen
to
determine
that
a
slight
air
fl
ow
is
ini ally
present.
3.
Use
the
In
‐
Line
tool
to
turn
the
ori
fi
ce
(3)
clockwise
with
very
small
frac ons
of
a
turn,
just
un l
air
fl
ow
is
no
longer
present,
and
pause
to
listen
carefully
for
air
fl
ow
or
leakage
a er
each
adjustment.
Adjust
the
ori
fi
ce
(3)
as
required
to
achieve
the
desired
opening
e
ff
ort.
NOTE:
Turning
the
ORIFICE
(3)
further
than
necessary
to
stop
air
fl
ow
will
result
in
LEVER
(9)
slack
and
excessive
spring
load
tension,
impairing
proper
performance.
CAUTION:
To
avoid
cu ng
the
POPPET
SEAT
(10)
with
the
knife
edge
of
the
ORIFICE
(11),
depress
the
PURGE
BUTTON
(31)
while
turning
the
ORIFICE
(11)
in
or
out.
4.
Hold
the
Second
Stage
with
the
mouthpiece
(27)
facing
directly
down,
and
gently
shake
it
up
and
down,
listening
carefully
for
any
ra le
that
may
be
present,
indica ng
lever
(9)
slack.
If
slack
is
indicated,
the
second
stage
must
be
disassembled
and
corrected.
5.
Purge
the
Regulator
of
all
air
to
remove
the
In
‐
Line
adjustment
tool,
and
connect
the
LP
hose
directly
onto
the
coupling
(2)
using
an
11/16"
open
end
wrench.
Tighten
to
a
torque
of
35
to
40
in
‐
lbs
(4
‐
4.5
N
‐
m).
6.
Pressurize
the
Regulator
again
with
a
pure
air
source
of
3,000
PSI
(206
BAR).
Inhale
lightly
through
the
mouthpiece
(27)
.
Air
should
fl
ow
easily
and
smoothly,
without
any
hesita on
or
lag.
NOTE:
If
hesita on
or
lag
is
detected,
refer
to
the
Troubleshoo ng
Sec on
to
determine
possible
cause
and
treatment.
7.
Clean
and
disinfect
the
mouthpiece
(27)
in
warm,
soapy
water
before
returning
the
BOV
equipment
to
the
customer.
Содержание ORCA SPIRIT
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