Section 6 − Operating The Welding Generator; Engine Control Switches - Miller Electric 250 Owner's Manual

.
A complete Parts List is available at www.MillerWelds.com
SECTION 6 − OPERATING THE WELDING GENERATOR

6-1. Engine Control Switches

1
NOTICE − Disconnect equipment from auxil-
iary power receptacles during start−up and
shutdown. Some equipment can be damaged
by changes in frequency as engine rpms
change during start-up and shutdown.
1 Engine Control Switch
Use switch to start engine, select speed, and
stop engine. In Run/Idle position, engine runs
at idle speed at no load, and weld/power speed
under load. In Run position, engine runs at
weld/power speed.
.
Place switch in Run position to operate
most MIG equipment.
2 Glow Plug Switch
OM-217 455 Page 20
4
3
2
If necessary, push switch down before start-
up. See glow plug table for operating informa-
tion.
3 Idle Lock Switch
Use switch to lock engine in idle speed during
start-up. In Start position and Engine Control
switch in Run or Run/Idle, engine is locked in
idle speed. In Run/Idle position and Engine
Control switch in Run/Idle, engine runs at idle
speed at no load and weld/power speed under
load.
In Run/Idle position and Engine Control switch
in Run, engine runs at weld/power speed.
Glow Plug Time
t
° °
70 F (21 C) 0 seconds
° °
32 F (0 C) 10 seconds
° °
−4 F (−20 C)
20 seconds
Do not use glow plugs longer than
20 seconds.
Do not use ether to start engine.
Using ether voids warranty.
To Start: Use glow plug switch if necessary.
Turn Engine Control switch to Start position.
Release switch when engine starts.
.
If the engine does not start, let engine
come to a complete stop before attempt-
ing restart.
To Stop: Turn Engine Control switch to Off
position.
.
Close fuel valve to stop engine if Engine
Control switch does not work (see Section
5-4).
4 Fuel Gauge/Maintenance Display
See insert from maintenance label.
Ref. 228 647-A