E-3

TROUBLESHOOTING

E-3

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF MISADJUSTMENT(S)

RECOMMENDED

COURSE OF ACTION

Engine shuts down while under a

1. High radiator coolant tempera-

load.

ture. Reduce load if it is exceed-

 

ing machine rating. Add coolant

 

to system if low. Clean fins on

 

radiator if dirty. Tighten fan belt if

 

loose. Remove objects blocking

 

or close to intake openings on

 

both sides of base and exhaust

 

end (case back).

 

 

Engine runs rough.

1. Dirty fuel or air filters. Inspect and

 

clean/replace filters as needed.

 

Inspect and clean/replace filters

 

as needed.

 

2. Water in fuel. If water found in

 

tank. Empty fuel tank and refill

 

then purge fuel lines.

 

 

Battery does not stay charged.

1. Faulty battery. Replace.

Engine alternator trouble light is on

2. Loose connections at battery or

while machine is running.

alternator. Clean and tighten con-

 

nections.

 

3. Faulty engine alternator or charg-

 

er module. Consult authorized

 

Engine Service Shop.

 

 

Engine will not idle down to low

1. Idler switch in High idle position.

speed.

Set switch to Auto.

 

2. External load on welder or auxil-

 

iary power. Remove all external

 

loads.

 

3. Faulty PC board or idler sole-

 

noid.

 

 

Engine will not go to high idle when

1. Poor work lead connection to

attempting to weld.

work. Make sure work clamp is

 

tightly connected to clean base

 

metal.

 

2. "Contactor" switch is in wrong

 

position. Set to "Welding On" when

 

welding without a control cable.

 

Refer to Operations chapter for prop-

 

er use of this switch.

 

3. Faulty PC board. Low idle speed

 

set to low.

 

 

If all recommended possible areas of misadjustment have been checked and the problem persists, Contact your local Lincoln Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

RANGER 305D

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Lincoln Electric IM730 manual Welding without a control cable