Miller Electric 852 - Manual (Page 28)

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A complete Parts List is available at www.MillerWelds.com
OM-222 Page 24
5-2. Controls (CE Models)
1 Polarity Selector Switch (Optional On 50
Hz Models)
To change polarity on models not equipped
with a Polarity Selector switch, reverse work
and electrode cables at the weld output termi-
nals (see Section 4-8).
Y Turn Off Power before reversing
cables.
2 Arc Force (Dig) Control
Control increases SMAW short-circuit amper-
age which allows the operator to use a very
short arc length without sticking the electrode.
Set control at 0 for normal welding amperage.
Turn clockwise to increase short-circuit
amperage.
3
Hot Start Switch
Turn switch On for SMAW and Off for GTAW
welding.
4
Amperage Adjustment Control
5 Digital Meters (Optional)
6 Power Switch With Indicator Light
7 High Temperature Shutdown Light
8 Remote Amperage Control Switch
For front panel control, place switch in Panel
position. For remote control, place switch in
Remote position, and connect remote device
(see Section 4-11).
9
Output Switch (Contactor)
For front panel control of output, place switch
in Panel position. For remote control of output,
place switch in Remote position, and connect
remote device (see Section 4-11).
Y Turn Off power before connecting re-
mote device.
Ref. ST-173 450-B
300 Amp Model Shown
1
2
8 9
4
6 7
3 5
SECTION 6 − MAINTENANCE AND TROUBLESHOOTING
6-1. Routine Maintenance
Y Disconnect power before maintaining.
3 Months
Replace
unreadable
labels.
Repair or
replace
cracked
weld cable.
Clean and
tighten weld
terminals.
6 Months
Blow out or
vacuum inside.
During heavy
service, clean monthly.
OR