Trouble

Remedy

 

 

Engine cranks but does not start.

Press Magnetic Shutdown switch MS1 when starting engine.

 

 

 

Check fuel level.

 

 

 

Reset circuit breaker CB13 (see Section 8-9). Have Factory Authorized Service Agent check engine-

 

wiring harness and components.

 

 

 

Check battery and replace if necessary. Check engine charging system according to engine manual.

 

 

 

Have Factory Authorized Service Agent check control relay CR2, and fuel solenoid FS1.

 

 

Engine starts, but stops when Magnetic

When starting engine, continue holding Magnetic Shutdown switch until after engine indicator lights go

Shutdown switch is released.

out.

 

 

 

Check oil, and coolant levels. Automatic shutdown system stops engine if oil pressure is too low or cool-

 

ant temperature is too high (see Sections 4-7 and 8-10).

 

 

Engine hard to start in cold weather.

Use starting Aid (Engine Choke control, see Section 5-1 ).

 

 

 

Keep battery in good condition. Store battery in warm area off cold surface.

 

 

 

Use correct grade oil for cold weather (see Section 8-1).

 

 

Engine suddenly stops.

Check fuel, oil, and coolant levels. Automatic shutdown system stops engine if oil pressure is too low,

 

or coolant temperature is too high (see Sections 4-7 and 8-10).

 

 

 

See engine manual.

 

 

Engine slowly stopped and cannot be

Check fuel level.

restarted.

 

 

 

 

Check engine air and fuel filters (see Section 8-8).

 

 

 

Check engine wiring harness connections.

 

 

 

See engine manual.

 

 

Battery discharges between uses.

Turn Engine Control switch off when unit is not running.

 

 

 

Clean top of battery with baking soda and water solution; rinse with clear water.

 

 

 

Recharge or replace battery if necessary.

 

 

 

Periodically recharge battery (approximately every 3 months).

 

 

Engine idles, but does not come up to

Have Factory Authorized Service Agent check idle module PC7, current transformer CT1, and throttle

weld speed.

solenoid TS1.

 

 

 

Check for obstructed throttle solenoid and linkage.

 

 

Engine does not run at idle speed.

CC models: place Stick/TIG Selection switch in Stick position.

 

CC/CV models: place Process/Contactor switch in any position but Remote-TIG.

 

 

 

Check for obstructed throttle solenoid and linkage.

 

 

 

Have Factory Authorized Service Agent check idle module PC7, and control relays CR3 and CR6.

 

 

OM-4405 Page 46

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Miller Electric Big 40 WG Wiring harness and components, Shutdown switch is released Out, See engine manual
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Big 40 WG specifications

The Miller Electric Big 40 WG is a versatile and powerful welding generator designed to meet the demands of professionals in the field. Known for its reliability and robust performance, the Big 40 WG is the ideal choice for those who require both welding capabilities and a portable power source.

One of the standout features of the Big 40 WG is its ability to produce a substantial output of up to 10,000 watts of continuous power. This ensures that users have enough capacity to run various tools and equipment, making it perfect for job sites where electricity may not readily be available. The generator is powered by a Kohler Command PRO engine, renowned for its durability and efficiency, ensuring that users can depend on its performance even in the toughest conditions.

The machine offers a dual capability for electric welding and stick welding, which enables users to tackle a variety of applications, from light maintenance tasks to heavy-duty industrial jobs. The Big 40 WG features an easy-to-use control panel, equipped with clear indicators and outputs that simplify operation. Whether you need to switch between welding modes or adjust settings, the intuitive design allows for quick responses and seamless operation.

In terms of technology and innovation, the Big 40 WG includes advanced features such as an automatic idle speed adjustment, which increases fuel efficiency and reduces wear on the engine. This technology not only helps save on fuel costs but also minimizes noise levels, providing a more pleasant working environment.

Another key characteristic of the Big 40 WG is its portability. Engineered with a lightweight frame and built-in lifting hooks, it is easy to transport and maneuver, making it an excellent choice for on-site work. The rugged construction ensures that the generator can withstand the rigors of outdoor use, enhancing its lifespan and reliability.

For those in search of a welding generator that delivers on performance, functionality, and portability, the Miller Electric Big 40 WG stands out as a preferred option. Its combination of powerful output, advanced technologies, and user-friendly features makes it a valuable tool for professionals across various industries, ensuring they can complete their jobs effectively and efficiently, no matter where they are.
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