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 ground- ing of the printed circuit board (through its mount- ing), reed switch and battery.
4.If desired, the welder can be used without automat- ic 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 alterna- tor 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 replace- ment 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 neces- sary to remove safety guards to perform required maintenance. Remove guards only when necessary and replace them when the maintenance requiring their removal is com- plete. Always use the greatest care when work- ing 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
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