Hobart Welding Products AirForce 400, Owner'S Manual

Page: 19 / 36

OM-203 653 Page 15
SECTION 5 − OPERATION
5-1. Controls
1
4 2 3
5
ON
OFF
PRESSURE
60 PSI
5
6
24
27
6
Set To
60 PSI (414 kPa)
20
16
24
27
20
16
1
24
27
20
16
Requires
70-150 PSI
(483-1034 kPa)
Supply
Setting Gas/Air Pressure
1 Output Control
Use control to set cutting output.
Place control in Gas/Air Set position to safely
adjust gas/air pressure. Only gas/air circuit
is activated.
If 22-27 amperes of cutting output is used
with 115 VAC input power, and the overload
protection on the input power circuit fre-
quently opens, either reduce the cutting out-
put and/or the cut time or find more adequate
power (see Section 4-1).
2
Trouble Lights (See Section 6-2)
3 Power Light
4 Power Switch
Setting Gas/Air Pressure
5 Air Filter/Regulator
6 Pressure Adjustment Knob
Place Output control in Gas/Air position and
turn on gas/air supply. Lift knob and turn to
adjust pressure. Push knob down to lock in
setting.
Place Output control in desired cutting
output.
.
At ambient temperatures below − 5 5 C
(23 5 F), readjustment of gas/air
pressure regulator may be necessary.
Ref. 200 808 / Ref. 802 784