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1. routine maintenance, 50 h – Hobart Welding Products OM-494 User Manual

Page 36

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OM-494 Page 32

SECTION 6 – OPERATING AUXILIARY EQUIPMENT

6-1.

120 Volt And 240 Volt Duplex Receptacles

190 376

Y

Be sure equipment connected to the
240 V receptacles is GFCI-pro-
tected.

.

Auxiliary power is not affected by posi-
tion of Welder Selector switch.

.

4 kVA/kW auxiliary power output is
shared by all receptacles.

1

240 V 20 A AC Receptacle RC1

2

120 V 20 A AC GFCI Receptacle
GFCI 1

3

240 V 20 A AC Receptacle RC2

4

120 V 20 A AC GFCI Receptacle
GFCI 2

Receptacles supply 60 Hz single-phase
power at weld/power speed.
If a ground fault is detected, the GFCI re-
ceptacle(s) circuit opens to disconnect the

faulty equipment and the GFCI Reset but-
ton pops out. Check for damaged tools,
cords, plugs, etc. connected to the recep-
tacle. Press button to reset receptacle and
resume operation.

.

At least once a month, run engine at
weld/power speed and press Test but-
ton to verify GFCI is working properly.

5

Circuit Breakers CB1 And CB2

6

Circuit Breakers CB3 And CB4

CB1 and CB2 protect RC1 and GFCI 1 from
overload. If CB1 or CB2 opens, RC1 does
not work. 120 volts may still be present at
RC1. If CB2 opens, GFCI 1 does not work.
Press button to reset breaker.

CB3 and CB4 protect RC2 and GFCI 2 from
overload. If CB3 or CB4 opens, RC2 does
not work. 120 volts may still be present at

RC2. If CB4 opens, GFCI 2 does not work.
Press button to reset breaker.

.

If a circuit breaker continues to open,
contact Factory Authorized Service
Agent.

Maximum output from each 120 volt GFCI
receptacle is 2.4 kVA/kW. Maximum output
from each 240 volt duplex receptacle half is
4.0 kVA/kW.

Total combined output from all receptacles
is 4 kVA/kW.

EXAMPLE: If 12 A is drawn from RC1, only
9 A is available at GFCI 1:

(240 V x 12 A) + (120 V x 9 A) = 4.0 kVA/kW

.

Auxiliary power is not affected by weld
output.

1

5

2

3

6

4

SECTION 7 – MAINTENANCE & TROUBLESHOOTING

7-1.

Routine Maintenance

Recycle

engine

fluids.

Y

Stop engine before maintaining.

.

See also Engine Manual and Maintenance Label.
Service engine more often if used in severe condi-
tions.

*

To be done by Factory Authorized Service Agent.

8 h

Check Fluid
Levels. See
Section 4-5.

Wipe

Up

Spills.

Drain Water

From Fuel

System. See

Section 7-4.

OIL
Full

FUEL

WATER

50 h

Clean Air Filter.

See Section 7-3.

Clean And

Tighten

Weld

Terminals.