Lincoln Electric SAE-300 manual Idler Maintenance, Nameplates, Vent Screw Priming Lever

Page 19

D-2

MAINTENANCE

D-2

 

 

 

Replace brushes when they wear within 1/4” of the pigtail. A complete set of replacement brushes should be kept on hand. Lincoln brushes have a curved face to fit the commutator. Have an experienced mainte- nance man seat these brushes by lightly stoning the commutator as the armature rotates at full speed until contact is made across the full face of the brushes. After stoning, blow out the dust with low pressure air.

To seat slip ring brushes, position the brushes in place. Then slide one end of a piece of fine sandpaper between slip rings and brushes with the coarse side against the brushes. With slight additional finger pres- sure on top of the brushes, pull the sandpaper around the circumference of the rings - in direction of rotation only - until brushes seat properly. In addition, stone slip ring with a fine stone. Brushes must be seated 100%.

Arcing or excessive exciter brush wear indicates a possible misaligned shaft. Have an authorized Field Service Shop check and realign the shaft.

IDLER MAINTENANCE

CAuTION

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

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

When installing a new battery or using a jumper bat- tery 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 connec- tion.

1.Proper operation of the idler requires good ground- ing of the printed circuit board, reed switch, and battery.

2.Idler solenoid is activated for low idle.

3.If desired, the welder can be used without automat- ic idling by setting the “Idler” switch to the “High” position.

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.

PuRGING AIR FROM FuEL SYSTEM (PERKINS 404D-22 ENGINE)

WARNING

Keep fuel clear of open flames or arcs, allow engine to cool before working on the fuel system. Wipe up any spilled fuel and do not start engine until fumes clear.

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

If the engine is running rough and you suspect air has been trapped in the fuel system, (e.g. the engine was allowed to run out of fuel) perform the following steps using qualified personnel:

1.Loosen by two or three turns, the vent screw (Figure D.1) on the fuel inlet connection.

Vent Screw

Priming

Lever

FIGuRE D.1

2.Operate the electric fuel pump by turning the “Ignition” switch “ON” until fuel, free of air, flows from the vent point. Tighten the vent screw.

3.Contact your Perkins Engine repair facility if prob- lems persist.

SAE-300®

Image 19
Contents SAE-300 California Proposition 65 Warnings SafetyARC Rays can burn Electric ShOCK can killFuMES and Gases can be dangerous Cylinder may explode if damaged Welding and CuTTING Sparks can Cause fire or explosionIii Sûreté Pour Soudage a L’Arc PRÉCAuTIONS DE SûretéOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTAbLE of Contents Volts @ Rated Amps Cycle InstallationTEChNICAL Specifications SAE-300 DescriptionGeneral Description Design FEATuRESReceptacle MAChINE GROuNDING PRE-OPERATION InstallationTrailer see Optional FEATuRES Location / VentilationOIL PRE-OPERATION ServiceCooling System To prevent Electrical Damage when 5INSTALLATIONA-5BATTERY ChARGING To prevent ExPLOSION whenCold WEAThER Starting OperationENGINE OPERATION Starting ThE SAE-300 404D-22 Diesel EngineEngine bREAK-IN Welder OperationStick / TIG Welding Idler Operation MIG WeldingOptional FEATuRES Field Installed AccessoriesWire Feeder Options Cooling System MaintenanceSafety PRECAuTIONS General INSTRuCTIONSVent Screw Priming Lever Idler MaintenanceNameplates PuRGING AIR from FuEL System Perkins 404D-22 EngineMaintenance PROCEDuRE Gfci Testing and ResettingHOW to uSE TROubLEShOOTING GuIDE TROubLEShOOTINGRecommended PRObLEMSSymptoms POSSIbLE CAuSEYour local Lincoln Authorized POSSIbLE Areas of MISADJuSTMENTSSOpen Closed Electronic Idler TROubLEShOOTING GuIDEDefective -- Will Not Close Auxiliary Power Load is Turned onContact your local Lincoln Authorized Field Service FacilityWater passage. Flush the system Ing on Faulty light wiring Diagrams S10766-14 Atenção Atenção