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ADJUSTMENTS AN D MAINTENANCE
The
proper adjustments to
operation of this
rel ay have been made at the
factory
and shoul d not be disturbed after re
c eipt by
the c ustomer.
have been changed,
the relay taken
repairs, or if it is
desired to check the ad
j ustments
at regul ar maintenanc e periods, in
structions bel ow shoul d be fol l o wed .
S ynchronous Motor
The motor
bearing
c ontains
l ubric ant sufficient for 3 to 5 years o f ser
vice under average conditions .
eral appl ication
of
the
required to operate at an
of -30°
or -40° F, and others may be required
to operate at
an ambient temperature
100° F,
a special
o il is used which
sufficient fl uidity
at low
does not
oxidize or
deteriorate otherwise at
h igh
temperatures .
For relubrication of the
motor after a period of service,
suppl ied in 1 ounce bottles as 3#1723639.
c ause of the
c l ose
tolerances hel d in
fac ture, no
attempt
shoul d be made to repair
the motor in case o f damage .
turned to the factory for repair or a complete
new motor ordered as a replac ement.
&
Gear Train
Clutch
The gear train shafts run at low
require no
l ubricatio n .
teeth
on the
sliding
c lutch shaft shoul d be inspected and the
shifted slightly if nec essary to secure a full
mesh .
Then tighten the set sc rew securel y .
When the armature is hel d c l o sed, the cl utch
teeth shoul d have a full mesh and there should
be 1/32" to 3/64" fol l o w on the cl utch spring .
Any necessary
adj ustment
means of the l o wer sc rew in the bracket of the
front
of
the
armature,
shoul d
be
securely
tightened .
turn of the adj usting sc rew,
is closed
and with the operating
touching the clutc h pinion without defl ection,
will
give about 1/32" fol low on the
6
insure
correct
If
the
adjustments
apart for
a
suppl y
o f
S ince
in gen
rel ays, some may be
ambient temperature
of over
retains
temperatures
and
this
oil is
Be
manu
It shoul d be re
speeds and
The mesh of the gear
gear
assembl y of
tne
hub
shoul d be
made
by
and
the l o c k
nut
One-quarter
after the cl utch
spring j ust
spring .
*
When the armature
is
teeth
should have sufficient separation
prevent any interference with resetting of the
trip
discs .
Too
much follow
spring will prevent the c l utch from being held
open
positively
when the
gized .
A smal l drop of the
recommended
for
relubrication
shoul d be applied to the c l utch pinion bearing
at intervals of six months
c an be applied by
dipping
the oil and touching
between
the two
clutch discs.
amount
of oil is
sufficient .
may be
appl ied
to the
pinion at the same time .
The
shaft assembl y
disc s are mounted is assembl ed so that its re
set
spring has approximatel y 1-1/4 turns ini
tial
tension with the shaft
the shaft shouid be reassembl ed in this manner
after any dismantl ing.
Trip Mechanism
The die-case
bracket
l atch
arm
assembl y is
gear plate by means of screws passing through
To adjust the position of this
sl otted holes .
brac ket, loosen both the
the screw which hol ds the atop bracket for the
( front view ) l atch
right hand
sl iding gear assembl y out of mesh, so that the
trip
discs will not rotate, and energize
rel ay .
The
l atch arms shoul d be down so that
the contact
fingers are hel d
die-case bracket so
touc , h ing the al uminum trip discs ( not the trip
sc rews ) ,
the
pro j ection
l atch arm above
the top of ita
tact finger
wil l be
hand
finger and . 070
finger .
The dimensions given apply to
in
which the
trip
diameter .
Earlier
diameter of 1-3/16 inch and on
rel eased,
the
cl utch
on the
cl utch
rel ay
is de-ener
same oil that
of the
motor
to one year .
a small
wire into
this to the c l utch shaft
A very smal l
A drop of
oil
teeth
of the
c l utch
on which
the
tripping
full y reset, and
which
suppo�ts
secured to
the
rront
mounting screws and
arm.
Move the
out .
Shift the
that with the l atch
arms
of
the
end of the
adjacent con
. 075 inch for
the l eft
inch for the right-hand
relays
discs are 1-1/8
inch
relays
used discs
with a
these the dim-
to
is
It
t
{
the
the
in
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