E-4

TROUBLESHOOTING

E-4

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

Engine will not go to high idle when

1.

Auxiliary power load is less than

 

 

using auxiliary power.

 

100 watts. Idler may not respond

 

 

 

 

with less than a 100 watt load.

 

 

 

 

Set idler to "High".

 

 

 

2.

Faulty PC board.(Control or Idler).

 

 

 

 

 

 

 

Engine will not go to high idle

1.

Faulty idler solenoid. Check for

 

 

under weld or auxiliary loading.

 

bent linkage or broken spring.

 

 

 

2.

Faulty PC board.(Control or Idler).

 

 

 

 

 

 

 

Engine does not develop full

1.

Fuel filter clogged, Replace.

 

 

power. Engine runs rough.

2.

Air filter clogged, clean or

 

 

 

 

replace.

 

 

 

3. High idle setting incorrect, check

 

 

 

 

and adjust if required.

 

 

 

4.

Valves out of adjustment.

 

 

 

5.

Fuel contaminated with water or

 

 

 

 

sediment. Check fuel pre-filter

 

 

 

 

and empty of water, bleed fuel

 

 

 

 

system. Replace fuel in tank if

 

 

 

 

needed.

 

 

 

 

 

If all recommended possible

areas

Engine will not go to high idle when

1.

Broken spring on Idle Solenoid,

attempting to weld or using auxil-

 

solenoid linkage binding, Faulty

of misadjustment have

been

iary power. Switching to manual

 

PC board (Control or Idler), low

checked and the problem persists,

high idle does not work.

 

idle speed set too low on idle

Contact your local Lincoln

 

 

solenoid.

Authorized Field Service Facility.

 

 

 

 

 

Engine will not shut off.

1.

Fuel Shutdown solenoid not func-

 

 

 

 

tioning properly / linkage binding.

 

 

 

 

Stop engine by shutting off valve

 

 

 

 

located on main fuel filter .

 

 

 

 

Contact authorized local Engine

 

 

 

 

Service Shop.

 

 

 

 

 

 

Engine does not develop full power.

1. Fuel filter dirty/clogged. Replace.

 

 

Low weld and auxiliary output .

2. Air filter dirty/clogged. Replace Air

 

 

Engine runs rough.

 

Filter Element.

 

 

 

3. Fouled fuel injector(s). Contact

 

 

 

 

authorized Engine Service Shop.

 

 

 

4. Fuel contaminated with water.

 

 

 

 

Check water separator for water.

 

 

 

 

Clean and replace as needed.

 

 

 

 

Replace fuel in tank.

 

 

 

5. Cracked or loose fuel hose .

 

 

 

 

Replace hose and tighten clamps.

 

 

 

6. Valves out of adjustment. Contact

 

 

 

 

authorized local Engine Service

 

 

 

 

Shop.

 

 

 

 

 

 

 

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.

VANTAGE® 400 (AU)

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Image 36
Lincoln Electric 400 (AU) manual Solenoid