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6-2. Description Of Controls (See Section 6-1)
1
Engine Switch
Use switch to control ignition circuit, and to
stop engine.
2
Choke Control
Use control to change engine air/fuel mix.
Move control to right (Choke) if starting a cold
engine. Move control to left (Run) if starting a
warm engine.
3
Starter Handle
To Start:
D Open fuel valve (see Section 5-4).
D Turn Engine switch to On.
D Set Choke control.
6-3. Amperage Selection Table For Stick (SMAW) Electrodes
Values listed are suggested settings. Actual settings may vary depending on personal preference and/or specific application.
Suggested electrode for beginners is E6013.
6-4. Cold Weather Operation
When temperatures are below 40°F (4°C) and humidity is high, the engine may experience icing of the carburetor and/or the
crankcase breather system, causing operating problems such as stalling. Briggs & Stratton (1-800-444-7774) offers a heat shield
(Briggs & Stratton Part No. 795886) for cold weather operation. The user can install this kit for cold weather operation.
.
Complete Parts List available at www.HobartWelders.com
D Pull starter handle until engine starts.
D Move Choke control to the left (Run) as
the engine warms.
.
This unit has a low oil level shutdown to
prevent starting an engine that is too low
on oil. The low oil level shutdown may not
stop a running engine. Check oil level if
the engine does not start, or has stopped
and cannot be restarted.
To Stop: turn engine switch to Off.
.
Always close fuel valve after stopping
unit. Moving unit with fuel valve open may
cause carburetor flooding and make
starting difficult.
4
Amperage Control
Use control to select weld amperage. Control
may be adjusted while welding. Set Amper-
age control at max. for full generator power
output at ac receptacles.
To Set Amperage control: Use electrode
chart (see Section 6-3) to determine correct
size electrode. Select electrode type and set
Amperage control to corresponding amper-
age range on nameplate. Adjust control within
selected range to obtain desired weld
performance.
EXAMPLE:
Electrode Type: 6013
Electrode Diameter: 1/8
Amperage control Setting: 80 − 120 A
Use table to select correct amper-
age for the electrode being used.
OM-250 200 Page 27
250 186-A
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