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Hersteller: Lincoln Electric Dateigröße: 515.87 kb Dateiname: Unterrichtssprache:

Over- greasing is far worse than insufficient greasing. When greasing the bearings, keep all dirt out of the area. Wipe the fittings completely clean and use clean equipment. More bearing failures are caused by dirt introduced during greasing than from insufficient grease. COMMUTATOR AND BRUSHES WARNING Uncovered rotating equipment can be dangerous. Use care so your hands, hair, clothing or tools do not catch in the rotating parts. Protect yourself from particles that may be thrown out by the rotating armature when stoning the commutator. Shifting of the commutator brushes may result in: -Change in machine output -Commutator damage -Excessive brush wear Periodically inspect the commutator, slip rings, and brushes by removing the covers. DO NOT remove or replace these covers while the machine is running. Commutators and slip rings require little attention. However, if they are black or appear uneven, have them cleaned by an experienced maintenance man using fine sandpaper or a commutator stone. Never use emery cloth or paper for this purpose. • Put a drop of oil on the “Current Range Selector” shaft at least once every month. CLASSIC 300G D-2 D-2 MAINTENANCE 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 maintenance 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 pressure 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 CONTROL MAINTENANCE CAUTION Before doing electrical work, disconnect the battery. 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 TBI controller can result from incorrect connection. • Proper operation of the idle control requires good grounding of the TBI controller, and battery. • If desired, the welder can be used without automatic 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 replacement item number. PURGING AIR FROM FUEL SYSTEM ( GM 3.0L 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. The fuel system operates as follows, The fuel pump will operate for a maximum of 3 seconds when the ignition switch is turned “ON”. The pump will restart once the start button is pushed and continue when the engine starts. To purge the system of air if fuel lines have been removed, the ignition switch can be toggled “ON” and “OFF” (at 3 second intervals) until fuel flows through the fuel return line in the neck of the tank. The GM 3.0L engine does not require the system to be bled. If the engine runs out of fuel and the tank is refilled, the engine will restart within a few seconds if the engine is properly tuned. ENGINE MAINTENANCE Refer to the engine operation and maintenance manual for additional information on the engine. CLASSIC 300G D-3 MAINTENANCED-3 ENGINE SERVICE EVERY DAY OR EVERY 8 HOURS FIRST SERVICE - (50 HOURS) EVERY 100 HOURS OR 3 MONTHS EVERY 200 HOURS OR 6 MONTHS EVERY 600 HOURS OR 12 MONTHS ENGINE SERVICE (NOTE 2) MAINTENANCE ITEM TYPE OR QUANTITY I Coolant level I Conc 50/50 Water/Ethylene Glycolentration of antifreeze I Radiator for contamination or blockage R Coolant (NOTE 3) 9.9qrts, 9.4L I Engine oil level ( NOTE 1 ) R R Engine oil ( NOTE 1 & 3 ) 4.5qts, 4.3L ( including filter ) R R Engine oil filter AC PF25 C C Drain fuel bowl R Fuel filter canister PSI# 32500292 I Tension of Alternator/ Fan belt I Alternator/ Fan belt wear R Alternator Belt Good Year 11AV0955 R Fan Belt Good Year 11AV1220 I Tighten cylinder head R Spark Plugs (Gap = 0.040) 4 - AC R46TS I Electrical systems I All nuts and bolts for tightness ( 4 C C Air filter (earlier check may be req’d) R Air filter element Donaldson#P181050 Nelson #70206N I Leaks or engine damage I Battery BCI GROUP 45 I = Inspect C = Clean R = Replace Notes (1) Consult Engine Operators Manual for oil Re...

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