GE AM-4.16-250-6 - Page 17

PF
~
Magne
-
blast
Circuit
Breaker
GEI
-
88761
formed
on
the
breaker
at
the
factory
,
and
should
be
used
when
a
general
overhaul
of
the
breaker
is
necessary
.
General
Electric
Lubricants
D
50
H
15
andD
50
H
47
are
available
in
l
/
41
b
collapsible
tubes
.
It
is
so
packaged
to
insure
cleanliness
and
to
prevent
oxidation
.
The
lubrication
chart
,
Figure
17
,
is
divided
into
two
methods
of
lubrication
.
The
first
method
out
-
lines
the
maintenance
lubrication
which
should
be
performed
at
the
time
of
periodic
maintenance
,
and
requires
no
disassembly
.
The
second
method
out
-
lines
a
lubrication
procedure
similar
to
that
per
-
LUBRICATION
AT
MAINTENANCE
PERIOD
ALTERNATE
LUBRICATION
(
REQUIRES
DISASSEMBLY
)
PART
Sleeve
Bearings
-
links
,
trip
shaft
,
etc
.
(
Teflon
coated
bearings
)
No
lubrication
required
No
lubrication
required
Sleeve
Bearings
-
main
crank
shaft
,
driving
pawl
lever
.
(
Bronze
or
cast
iron
)
Light
applica
-
tion
of
machine
oil
SAE
20
or
SAE
30
.
Remove
bearings
or
links
,
clean
per
instructions
and
apply
D
50
H
15
lubri
-
cant
liberally
.
Contact
Arm
Hinge
Assembly
Cup
bearing
Loose
rings
between
bushing
and
contact
arm
.
No
lubrication
required
.
Wipe
clean
and
apply
D
50
H
47
.
Roller
and
Needle
Bearings
Light
applica
-
tion
of
machine
oil
SAE
20
or
SAE
30
.
Clean
per
instructions
and
repack
with
D
50
H
15
lubricant
.
Ground
surfaces
such
as
cams
,
ratchet
teeth
,
etc
.
(
Surfaces
coated
with
M
0
S
2
)
No
lubrication
required
.
No
lubrication
required
.
Ground
surfaces
such
as
latches
,
rollers
,
prop
,
etc
.
Wipe
clean
and
apply
D
50
H
15
lubricant
.
Wipe
clean
and
apply
D
50
H
15
lubricant
.
Silver
plated
contacts
and
primary
disconnect
studs
.
Wipe
clean
and
apply
D
50
H
47
.
Wipe
clean
and
apply
D
50
H
47
.
Booster
Cylinder
Do
not
lubricate
Do
not
lubricate
Arcing
Contacts
Do
not
lubricate
Do
not
lubricate
g
Figure
17
.
Lubrication
Chart
17
Courtesy of NationalSwitchgear.com