Hobart Welding Products OM-945 194 047U manual Overload Protection Onan-Powered Units

8-4. Overload Protection (Onan-Powered Units)

Tools Needed:

3/8 in

1

2

YStop engine. Disconnect nega- tive (−) battery cable.

.If the unit is extremely over- loaded, weld and generator pow- er will stop. Turn unit off and re- start to reset the generator protection circuit and restore weld and generator power output.

If the rated output of the unit is ex- ceeded, engine speed may vary rapidly until the weld or generator power load is reduced.

1Circuit Breaker CB4 (See Parts List)

CB4 protects the generator excitation circuit. If CB4 opens, there is no/low weld and generator power output.

Press button to reset breaker.

2 Fuse F6 (See Parts List)

F6 protects the engine wiring system. If F6 opens, the engine does not crank. If F6 opens while the engine is running, the engine stops.

Replace fuse if open. Reinstall cover before operating.

.If a fuse or circuit breaker opens,

it usually indicates a more serious problem exists. Contact a Factory Authorized Service Agent.

802 342 / Ref. 802 353-B

8-5. Servicing Optional Spark Arrestor (Onan-Powered Units)

Y Stop engine and let cool.

1 Spark Arrestor Screen

Clean and inspect screen. Replace spark arrestor if screen wires are broken or missing.

1

Tools Needed:

1/4 in

Ref. 801 682-A / Ref. 802 353-A

OM-945 Page 25