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

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.

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