Miller Electric D-64 - Manual (Page 23)

OM-1582 Page 19
802 433-A
5-2. Overload Protection And Optional Side Panel Controls
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.
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.
6 Burnback Control
Control adjusts time welding wire is ener-
gized after wire feed stops.
7
Run-In Control
Control sets run-in wire speed before arc ini-
tiation.
8
Postflow Control
Control sets time gas flows after completion
of burnback.
Close side door.
1
3 2 6 8
4 5 7
SECTION 6 – MAINTENANCE AND TROUBLESHOOTING
6-1. Routine Maintenance
Y Disconnect power before maintaining.
3 Months
Replace
unreadable
labels.
Clean and
tighten
weld
terminals.
Repair or
replace
cracked
weld
cable.
Check
14-pin
cord. Check gas
hose and
fittings. Check
gun
cable. Replace
cracked
parts.
6 Months
Blow out or vacuum
inside. During heavy
service, clean
monthly.
OR
Clean
drive
rolls.