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Wire
Retainer
Retaining
Ring
OPTIONAL
Input
Command
For
Wire
Speed
1PM
Meter
0.8V
=
800
1PM
Input
Command
For
Volts
Meter
O.5V
=
50V
Ref.
SD-ill
838-B
1.
Open
robot
interface
access
door.
2.
Locate
display
board
PC4.
3.
Check
voltage
according
to
Figure
6-2.
4.
If
a
meter
power
supply
and
command
voltage
is
correct
and
the
meter
is
not
working,
replace
the
me
ter
(see
Section
6-5
and
contact
nearest
Factory
Au
thorized
Service
Station).
5.
If
the
power
supply
or
command
voltage
is
incorrect,
replace
display
board
PC4
(see
Section
6-5
and
contact
nearest
Factory
Authorized
Service
Sta
tion).
6-5.
CIRCUIT
BOARD
HANDLING
PRECAUTIONS
a
WARNING:
ELECTRIC
SHOCK
can
kilt.
Do
not
touch
live
electrical
parts.
Shut
down
unit,
welding
power
source,
and
robot,
and
disconnect
input
power
employing
lockout/tagging
procedures
before
inspecting,
maintaining,
or
servicing.
Lockout/tagging
procedures
consist
of
padlock
ing
line
disconnect
switch
in
open
position,
re
moving
fuses
from
fuse
box,
or
shutting
off
and
red-tagging
circuit
breaker
or
other
disconnect
ing
device.
spanner
Nut
Wire
Reel
Spring
Keyed
Washer
Brake
Washer
Hub
Fiber
Washer
Brake
Washer
Fiber
Washer
Figure
6-1.
Hub And
Reel
Assemblies
Hex
Nut
Ref.
SC-l27
328
Hub
Input
Command
For
Ammeter
-.O.1V
=
100A
Figure
6-2.
Display
Board
Meter
Checks
Power
Supply
For
Volts
Meter
And
Ammeter
0-5VDC
OM-135
582
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10