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F-13

TROUBLESHOOTING AND REPAIR

F-13

Observe Safety Guidelines detailed in the beginning of this manual.

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE AREAS OF

RECOMMENDED

(SYMPTOMS)

 

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

 

 

 

OUTPUT PROBLEMS

 

 

The engine starts normally, but

The oil pressure may be low.

The idle/engine protection PC

shuts down after running for

Check the oil level and add oil

board, alternator, oil pressure

several seconds.

 

as needed. If necessary, contact

switch, or engine coolant

 

 

the engine manufacturer, or a

temperature switch may be

 

 

qualified engine specialist to

faulty. Perform the Engine

 

 

determine the cause of the low

Protection System Test.

 

 

oil pressure condition, and make

 

 

 

 

any required adjustments or

 

 

 

 

repairs.

 

 

 

 

The engine alternator belt may

 

 

 

 

be loose or broken. Replace the

 

 

 

 

belt and/or adjust the belt

 

 

 

 

tension.

 

 

 

 

The engine may be overheated.

 

 

 

 

Contact the engine

 

 

 

 

manufacturer, or a qualified

 

 

 

 

engine specialist to determine

 

 

 

 

the cause of the overheat

 

 

 

 

condition, and make any

 

 

 

 

required adjustments or repairs.

 

 

 

 

 

The engine will not develop full

Check that there is an adequate

Perform the Engine RPM

power.

 

supply of fresh clean fuel, and

Adjustment Test.

 

 

 

that the fuel shut-off valve is fully

There may be internal problems

 

 

open.

 

 

 

with the engine. Contact the

 

 

Check the fuel and air filters,

engine manufacturer or a

 

 

replace if necessary.

qualified engine repair

 

 

 

 

technician.

 

 

 

 

The engine will not shut down

 

Check the voltage at the

when the run/stop switch is

 

primary fuel solenoid.

If the

moved to the stop position.

 

voltage drops to zero when the

 

 

 

switch is turned off, and the

 

 

 

engine continues to run, there is

 

 

 

likely a failure in the fuel

 

 

 

system. Contact the engine

 

 

 

manufacturer or a qualified

 

 

 

engine technician.

 

 

 

 

If the voltage remains at the

 

 

 

solenoid after the switch is

 

 

 

moved to the stop position, the

 

 

 

run/stop switch has most likely

 

 

 

failed.

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877.

SAE-400 SEVERE DUTY

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Lincoln Electric SVM187-A service manual Protection System Test

SVM187-A specifications

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