Overload Protection And Optional Side Panel Controls; Section 6 - Maintenance And Troubleshooting; Routine Maintenance - Miller Electric D-64 Owner's Manual

5-2. Overload Protection And Optional Side Panel Controls

1
1 Circuit Breaker CB1
CB1 protects wire feed motor from overload.
Press to reset.
2 Preflow Control
Control sets time gas flows before welding
wire is energized.
3 Spot Time Control
Factory set for 0 to 5 seconds of spot time.
If 0 to 2.5 seconds is desired, see Section
4-10.
SECTION 6 – MAINTENANCE AND TROUBLESHOOTING

6-1. Routine Maintenance

3 Months
Replace
unreadable
labels.
Replace
cracked
parts.
6 Months
Blow out or vacuum
inside. During heavy
service, clean
monthly.
3 8
2
6 7
4 5
4 Spot Continuous Switch
Switch selects an untimed continuous weld
or a timed spot weld.
5 Trigger Hold Switch (Optional)
Push up to weld without holding gun trigger
throughout the weld cycle.
To start weld, press and release gun trigger
within three seconds after an arc has been
struck. To end weld, press and release gun
trigger.
Clean and
tighten
weld
terminals.
Check
14-pin
cord.
OR
6
Control adjusts time welding wire is ener-
gized after wire feed stops.
7
Control sets run-in wire speed before arc ini-
tiation.
8
Control sets time gas flows after completion
of burnback.
Close side door.
Y Disconnect power before maintaining.
Repair or
replace
cracked
weld
cable.
Check gas
hose and
fittings.
Clean
drive
rolls.
802 433-A
Burnback Control
Run-In Control
Postflow Control
Check
gun
cable.
OM-1582 Page 19