8.9
Use
pliers
to
hold
the
body
of
the
push
rod
and
a
5/64"
Allen
wrench
to
turn
the
set
screw
on
the
top
of
the
push
rod.
Rotate
the
set
screw
approximately
30
˚
counterclockwise
to
lengthen
and
clockwise
to
shorten
the
push
rod.
8.10
Re
‐
install
the
switch
assembly
and
retest
the
level
switch.
Repeat
these
procedures
as
required
until
the
switch
functions
properly.
9.0
RECOMMENDED
MAINTENANCE
PROCEDURE
INTERVAL
Test
installed
switch
with
process
liquid
to
check
for
proper
operation.
every
30
days
Replace
body
seal
(8)
as
required
TROUBLE
SHOOTING:
PROBLEM
POSSIBLE
CAUSES
RECOMMENDED
ACTION
Level
Switch
does
not
function
Loose
connection
Verify
that
the
switch
leads
are
properly
terminated
and
all
connections
are
tight.
Damaged
wiring
Check
switch
leads
for
cuts.
Switch
assembly
(2)
damaged
Follow
procedures
in
section
6.0
and
replace
switch
assembly.
Debris
accumulation
on
push
rod
(17),
transverse
rod
(16)
or
under
cone
(14)
Follow
procedures
in
sections
6.0
and
7.0
to
disassemble
and
clean.
Trash
accumulation
on
displacer
assembly
(9).
Remove
switch
form
vessel
or
cage
per
procedures
in
Section
6.3
and
clean
displacer.
Level
switch
not
installed
properly.
Spring
cap
not
in
the
'UP'
position
Use
instructions
given
in
Section
3.0
to
properly
install
the
switch.
Stainless
steel
displacer
assembly
(if
used)
damaged
Remove
switch
from
vessel
or
cage
per
procedures
in
Section
6.3
and
replace
displacer
assembly.
Specific
gravity
of
fluid
too
light
for
switch
to
function
Consult
factory
for
optional
Models
available.
Liquid
or
gas
leakage
from
body
vent
Body
seal
(8)
damaged
or
worn
Replace
body
seal
(8)
per
instructions
in
Sections
6.0
&
7.0.
