MAINTENANCE | ||
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SAFETY PRECAUTIONS
WARNING
Have qualified personnel do the maintenance 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 operate with covers removed.
•Do not touch electrically live parts or electrode with skin or wet clothing.
•Turn the input power to the welding power source off at the fuse box before working in the terminal strip.
•Insulate yourself from work and ground
•Always wear dry insulating gloves.
See additional warning information throughout this operator’s manual and the Engine manual as well.
ROUTINE MAINTENANCE
DRIVE ROLLS AND GUIDE TUBES
After feeding every coil of wire, inspect the drive roll section. Clean it as necessary. Do not use a solvent for cleaning the idle roll because it may wash the lu- bricant out of the bearing. The drive roll, idle roll and guide tubes are stamped with the wire sizes they will feed. If a wire size other than that stamped on the rolls is to be used, the rolls and guide tubes must be changed.
The drive rolls for .035 through .052 cored electrode and 1/16 through 5/64 electrode have a double set of teeth so they can be reversed for additional life. Drive rolls for .023 through .052 solid electrode and aluminum sizes have no teeth but use two grooves so they also can be reversed for additional life.
See Wire Feed Drive Roll and Guide Tube Kits Sec- tion for roll changing instructions.
WIRE REEL SPINDLE
No routine maintenance required. Do not lubricate spindle.
CONTROL BOX
Every six months open and inspect the control sec- tion. The accumulated dirt should be gently blown off all of the electrical components. Be sure the air that is being used is dry. Check that lead plugs are secure in their receptacles.
WIRE DRIVE MOTOR AND GEAR BOX
Every year examine the gear box. Paint the gear teeth with molydisulfide filled grease. Lincoln specification E2322. Do not use a graphite grease.
Check the motor brushes. Replace if they are worn down to 1/4 inch or less. When ordering feed motor b r u s h e s , g i v e a l l i n f o r m a t i o n f r o m t h e motor nameplate.
GUN AND CABLE MAINTENANCE
See IM manual provided with the gun and cable as- sembly.
CIRCUIT PROTECTION AND AUTOMATIC SHUTDOWN
CONTROL PC BOARD FUSE
On
On
AUTOMATIC PROTECTION SHUTDOWN
(See Automatic Protection Shutdown Section.)