Lincoln Electric 350-SA manual Troubleshooting, Idler Maintenance, Nameplates

Page 18

Idler Maintenance

CAUTION

Before doing electrical work on the idler printed circuit board, disconnect the battery.

------------------------------------------------------------------------

1.The solenoid plunger must work freely because binding can cause engine surging. If surging occurs, be sure the plunger is properly lined up with the throttle lever. Dust the plunger about once a year with graphite powder.

2.When any service is done, reassemble the rubber bellows on the solenoid plunger with the vent hole on the lower side.

3.Proper operation of the idler requires good grounding of the printed circuit board (through its mounting), reed switch and battery.

4.If desired, the welder can be used without automatic idling by setting the “Idler Control” switch to the “High Idle” position.

5.When installing a new battery or using a jumper battery to start the engine, be sure the battery polarity is connected properly. The correct polarity is negative ground. Damage to the engine alternator and the printed circuit board can result from incorrect connection.

Nameplates

Whenever routine maintenance is performed on this machine, or at least yearly, inspect all nameplates and labels for legibility. Replace those which are no longer clear. Refer to the parts list for the replacement item number.

TROUBLESHOOTING

WARNING

Have qualified personnel do the troubleshooting work. Turn the engine off before working inside the machine. In some cases, it may be necessary to remove safety guards to perform required maintenance. Remove guards only when necessary and replace them when the maintenance requiring their removal is complete. Always use the greatest care when working near moving parts.

Do not put your hands near the engine cooling blower fan. If a problem cannot be corrected by following the instructions, take the machine to the nearest Lincoln Field Service Shop.

------------------------------------------------------------

ELECTRIC SHOCK can kill.

• Do not touch electrically live parts or electrode with skin or wet clothing.

Insulate yourself from work and ground

Always wear dry insulating gloves.

------------------------------------------------------------------------

ENGINE EXHAUST can kill.

• Use in open, well ventilated areas or vent exhaust outside.

------------------------------------------------------------------------

MOVING PARTS can injure.

Do not operate with doors open or guards off.

• Stop engine before servicing.

Keep away from moving parts.

------------------------------------------------------------------------

See additional warning information at front of this operator’s manual

------------------------------------------------------------

17

Image 18 Contents
Safety Depends on You SA PerkinsSafety Electric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Thank You Table of Contents General Description Design SummaryOptional Features Specifications MachineMachine Grounding PRE-OPERATION InstallationSafety Precautions Exhaust Spark ArresterPolarity Control & Cable Sizes Recommended Copper Cable SizesPRE-OPERATION Service Engine Operation Starting the Perkins D3.152 EngineStopping the Perkins D3.152 Engine Control of Welding Current Welder Operation Duty Cycle Idler OperationMaintenance General Instructions for Diesel Engine WeldersBearings Commutator & BrushesTroubleshooting Idler MaintenanceNameplates Trouble Cause What to do AC Auxiliary Power Flashing the FieldsElectronic Idler Troubleshooting Guide SA Wiring Diagram Dimension Print Need Welding Training? How To Read Shop DrawingsNew Lessons in Arc Welding $700.00Precaucion Warnung Limited Warranty