2. controls (ce models), Section 6 − maintenance and troubleshooting, 1. routine maintenance – Miller Electric 852 User Manual

Page 28

Advertising
background image

.

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

Advertising