Miller Legend 302 Owner'S Manual Download Page 25

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OM-4430 Page 21

6-2. Description Of Front Panel Controls (See Section 6-1)

Process Switch

See Section 6-4 for Process switch informa-

tion.
2

Remote Receptacle

Use receptacle to connect remote control.
When a remote voltage/amperage control is

connected to the Remote receptacle, the

Auto Sense Remote feature automatically

switches voltage/amperage control to the re-

mote control (see Sections 5-7 and 6-7).
With remote voltage/amperage control con-

nected, weld output in CC mode is deter-

mined by a combination of front panel and re-

mote control voltage/amperage settings.
If no remote voltage/amperage control is

connected to the Remote receptacle, the

front panel Voltage/Amperage control ad-

justs voltage and amperage.
3 And 4 Displays
Displays can show weld process information

(voltage and amperage) or maintenance in-

formation (hourmeter or oil change count-

down).

Meter Weld Functions

: In Wire mode, Volt-

meter displays preset weld voltage when not

welding. Meters display actual voltage and

amperage when welding and for five sec-

onds after welding has stopped.
In Stick and TIG modes, Voltmeter reads ON

and Ammeter displays preset amperage

when not welding. Meters display actual volt-

age and amperage when welding and for five

seconds after welding has stopped.

Meter Engine Maintenance Functions:

Meters display engine hours when Engine

Control switch is in the Run/Idle 3600/2400

position but engine is not running.

Meter Oil Change Countdown:

With en-

gine off, place Engine Control switch in Run/

Idle 3000/1800 position to see hours before

next recommended oil change. Oil change

hours start at 100 (fresh oil) and count down

to 0 (oil change due). The meters display

negative (

−

) hours if 100 hours is exceeded.

After changing oil, reset counter by flipping

Engine Control switch between Run/Idle

positions three times.
Place Engine Control switch in Off position

after reading meters.
5

Fuel Level Indicator

With Engine running or Engine Control

switch in either Run/Idle position, LED’s indi-

cate fuel left in tank.
6

Voltage/Amperage Control

Use control to select weld voltage or

amperage. Control may be adjusted while

welding.

For maximum weld output (above 220
Amps), run unit at 3600 rpm. For weld
output below 220 Amps, operate unit at
3000 or 3600 rpm.

With Process switch in any Stick or TIG set-

ting, use control to adjust amperage. With

Process switch in Wire position, use control

to adjust voltage. When a remote voltage/

amperage control is connected to Remote

receptacle RC4, control sets the maximum

amperage in Stick and TIG modes, but has

no effect in MIG mode.
7

Engine Control Switch

Use switch to start engine, select speed, and

stop engine. Use switch in combination with

Engine Speed Control switch to select en-

gine speed.
In Run/Idle 3600/2400 RPM position, engine

runs at 2400 rpm no weld load and 3600 rpm

under weld load.

In Run/Idle 300/1800 RPM position, engine

runs at 1800 rpm no weld load and 3000 rpm

under weld load.
In either position, engine speed is deter-

mined by weld load and position of Engine

Speed Control switch.

Generator power is available at recep-
tacles RC1 and RC2 only at 1800 rpm.
If generator is not locked at 1800 rpm,
engine speed increases in response to
weld load and generator power output
stops at receptacles RC1 and RC2.
Generator power load does not affect
engine speed.

Engine Choke Control

Use control to change engine air-fuel mix

when starting engine.

To Start

: pull out choke and turn Engine

Control switch to Start position. Release

switch and slowly push choke in when

engine starts.

If the engine does not start, let the
engine come to a complete stop before
attempting restart.

To Stop

: turn Engine Control switch to Off

position.
9