leco P-1 - Page 15

CONTROL
VALVE
Reference
Figure
2,
page
8
The
control valve
requires
very
little maintenance.
It is
staiess
steel
with
a
viton
O-ring.
Looking down
on
the
control
valve,
fully
clockwise is
closed.
To
open
valve,
rotate
the
handle
counterclockwise
to
set
screw
stop.
The
valve
has
four
adjustable
stops
for the flow
rate
setting,
relocate
the
set
screw
stop.
To
change
the
flow
rate
simply
The
four
set
screw
stop
locations will
give
approximate flow
rates
of
1/4, 1/2,
3/4,
and
full flow
respectively
as
the
control
valve
is
rotated
from
the closed
position
to
the
counterclockwise
direction.
CALIBRATING
INSTRUCTIONS
Dosage:
It
has
never
been
our
policy
to
recommend
insecticide
dosage.
We
suggest
that
you
follow
the
label
recommendation
on
the
insecticide
you use
or
follow
the
recommendation
of
a
reliable
testing
agency.
To
Cagbrate:
1.
Fill
the
insecticide tank with
a
known
measure
of
insecticide.
2.
Set
the
control valve
at
a
specific
stop.
Spray
fora
specific time. The
longer
this
time
period,
the
more
accurate
the
cah'bration
will
be.
4 Remove
the
remaining
insecticide
from the
tank
and
measure.
The
difference
in the
starting
and
ending
measurement
will be the
usage
for
the
specific
time spraying
took
place.
From
this information,
the
flow
rate
can
be determined.
The
Conversion
Table
below will
be
helpful
if
it is
necessary
to
calibrate
in
a
unit
different
from
that
given
in the dosage recommendation.
Ft.
Oz. /
Mira
F1.
Oz.
/
Min.
Gal.
/
Hr.
Gal./Hr.
CONVERSION
TABLE
02.133300
63.081313130
00.015852
TO
OBTAIN
Cal./Hr.
ML
/
Min.
FL
/
Min.
M1.
/
Min.
FL
Oz. /
Min.
Gal./Hr.
15