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OM-402B April 1997
Eff. w/Serial Number KH383240
Processes
Shielded Metal Arc
(Stick) Welding
Gas Tungsten Arc
(TIG) Welding
With Optional Equipment:
Flux Cored Arc Welding
Description
Engine Driven Welding Generator
Metro 250D
Visit our website at
www.MillerWelds.com
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From Miller to You Thank you and congratulations on choosing Miller. Now you can get the job done and get it done right. We know you don’t have time to do it any other way. That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality. Like you, his customers couldn’t afford anything less. Miller products had to be more than the best they could be. They had to be the best you could buy. Today, the people that bu
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Metro 250D Metro 250D Description Features CALIFORNIA NEW! Warranty extended to 3 years (engine warranted by engine manufacturer) Proposition 65 Versatile weld output for DC Stick and DC Warning Multiple patented innovations put the new Metro TIG welding 250D constant current welder/generator on the Diesel engine exhaust and leading edge of engine-driven welding technology. Stepless amperage control for precise heat some of its constituents Combining advanced design and outstanding DC s
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1. Safety Precautions − Read Before Using 1.1 Symbol Usage OM-402B -4/97, safety_rom 4/97 Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. This group of symbols means Warning! Watch Out! possible Marks a special safety message. ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult symbols and related instructions below for necessary actions to avoid the hazards. Means “Note”; not safety related. 1.2 Arc
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WELDING can cause fire or explosion. HOT PARTS can cause severe burns. Allow cooling period before maintaining. Welding on closed containers, such as tanks, drums, or pipes, can cause them to blow up. Sparks Wear protective gloves and clothing when working on a hot engine. can fly off from the welding arc. The flying sparks, hot workpiece, and hot equipment can cause fires and Do not touch hot engine parts or just-welded burns. Accidental contact of electrode to metal objects can cause par
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BATTERY ACID can BURN SKIN and MOVING PARTS can cause injury. EYES. Keep away from fans, belts, and rotors. Do not tip battery. Keep all doors, panels, covers, and guards closed and securely in place. Replace damaged battery. Flush eyes and skin immediately with water. Stop engine before installing or connecting unit. Have only qualified people remove guards or covers for maint- enance and troubleshooting as necessary. To prevent accidental starting during servicing, disconnect n
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H.F. RADIATION can cause interference. ARC WELDING can cause interference. High-frequency (H.F.) can interfere with radio Electromagnetic energy can interfere with navigation, safety services, computers, and sensitive electronic equipment such as communications equipment. computers and computer-driven equipment such as robots. Have only qualified persons familiar with electronic equipment perform this installation. Be sure all equipment in the welding area is electromagnetically compatib
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1. Consignes de sécurité − lire avant utilisation 1.1 Signification des symboles OM-402B - 4/97, safety_rom_fre 4/97 Signifie Mise en garde ! Soyez vigilant ! Cette procédure présente des risques de danger ! Ceux-ci sont identifiés par des symboles adjacents aux directives. Ce groupe de symboles signifie Mise en garde ! Soyez vigilant ! Il y a des Identifie un message de sécurité particulier. risques de danger reliés aux CHOCS ÉLECTRIQUES, aux PIÈCES EN MOUVEMENT et aux PIÈCES CHAUDES. Report
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LE SOUDAGE peut provoquer un in- DES PIÈCES CHAUDES peuvent cendie ou une explosion. provoquer des brûlures graves. Prévoir une période de refroidissement avant d’effec- Le soudage effectué sur des conteneurs fermés tels que tuer des travaux d’entretien. des réservoirs, tambours ou des conduites peut provoquer leur éclatement. Des étincelles peuvent être projetées de Porter des gants et des vêtements de protection pour l’arc de soudure. La projection d’étincelles, des pièces chaudes et des t
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DES ORGANES MOBILES peuvent L’ACIDE DE LA BATTERIE peut pro- provoquer des blessures. voquer des brûlures dans les YEUX et sur la PEAU. Ne pas approcher les mains des ventilateurs, cour- roies et autres pièces en mouvement. Ne pas renverser la batterie. Maintenir fermés et fixement en place les portes, Remplacer une batterie endommagée. panneaux, recouvrements et dispositifs de Rincer immédiatement les yeux et la peau à l’eau. protection. Arrêter le moteur avant d’installer ou branch
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LES CHARGES LE RAYONNEMENT HAUTE FRÉ- ÉLECTROSTATIQUES peuvent QUENCE (H.F.) risque de provoquer endommager les circuits imprimés. des interférences. Établir la connexion avec la barrette de terre avant de Le rayonnement haute fréquence (H.F.) peut manipuler des cartes ou des pièces. provoquer des interférences avec les équipements de radio −navigation et de communication, les Utiliser des pochettes et des boîtes antistatiques services de sécurité et les ordinateurs. pour stocker, déplacer
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2. Definitions 2.1 Symbols and Definitions Fast Fast/Slow Stop Engine Slow (Idle) (Run, Weld/Power) (Run/Idle) Start Engine Glow Plug Temperature Fuel Engine Oil Remote 14 Panel/Local On 14 Check Injectors/ Check Valve Battery (Engine) Volts Pump Clearance V Amperes Stick (SMAW) Arc Force (DIG) TIG (GTAW) A Engine-Driven, Read Operator’s Single-Phase G Engine Circuit Breaker Manual Alternator With Rectifier Alternating Current Direct Current Positive Negative (AC) (DC) Certified/Trained Protecti
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2.2 General Precautionary Label 3/96 A. Warning! Watch Out! There are possible hazards as shown by the symbols. B. Become trained and read the instructions before working on the machine or welding. AB 1 Electric shock from welding electrode or wiring can kill. 1.1 Wear dry insulating gloves. Do not touch electrode with bare hand. Do not wear wet or damaged gloves. + 1.2 Protect yourself from electric shock by insulating yourself from work and ground. 1 1.1 1.2 1.3 1.3 Do not work on unit if engi
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2.3 Battery Charging Label 3/96 1 Warning! Watch Out! There are possible hazards as shown by the symbols. 1 2 3 4 5 6 2 Do not smoke and keep matches and flames away from battery. 3 Sparks can cause battery gases to explode. Battery explosion can blind and injure. Wear a face shield. 10 4 Battery acid can burn skin. Do not spill acid. 1 4 5 Read Owner’s Manual. + − 4 1 6 Wear rubber gloves. 11 + − 7 Dead battery + − 8 Engine block 9 Fully charged battery 10 Do not connect last negative 3 2 cable
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2.5 Hot Muffler Label 3/96 1 Warning! Watch Out! There 1 are possible hazards as shown by the symbols. 2 Hot muffler and exhaust pipes can cause severe burns. Do not touch hot muffler or pipes. 2 S-176 230 2.6 Diesel Fuel Label 3/96 1 Warning! Watch Out! There 1 are possible hazards as shown by the symbols. 2 Engine fuel plus flames or 3 2 sparks can cause fire. 3 Do not smoke while fueling or if near fuel. 4 Stop engine before fueling. + 5 Do not fuel a hot engine. 4 5 6 Use Diesel Fuel only. 6
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2.7 Falling Equipment Label 1 1 Warning! Watch Out! There 3/96 are possible hazards as shown by the symbols. 2 Falling equipment can cause serious injury and damage. 3 Use lifting eye to lift or move unit only. Use proper equipment when lifting. 4 Do not use lifting eye to lift and support unit and trailer or other heavy devices or accessories. S-176 104 2 3 4 2.8 Activation Tag 1 Remove unit from shipping 3/96 crate. Remove Owner’s 1 Manual from unit. Follow instructions to install muffler. + 2
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2.9 Do Not Use Ether Label 3/96 1 Warning! Watch Out! There are possible hazards as 1 shown by the symbols. 2 Ether will damage engine. Do not use ether as a starting aid. 3 Read Owner’s Manual. 4 Use glow plugs for 10 −25 3 seconds to aid starting in cold 2 weather. 4 10 − 25 s S-176 109 2.10 Manufacturer’s Rating Label G METRO 250D 1 20A/21V 280A/31V X 35% 60% 100% I 280A 250A 2 U = 58V 0 U 31V 30V 2 20A/11V 280A/21V X 35% 60% 100% I 280A 250A 2 U = 58V 0 U 21V 20V 2 −1 n = 3600 min −1 −1 n =
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3. Specifications 3.1 Weld, Power, and Engine Specifications Maximum Rated Welding Amperage Auxiliary Power Fuel Average Sound Open-Circuit Engine Output Range Rating Capacity Level Voltage DC 280 A, 31 V DC, Deutz/Ruggerini Single-Phase, 61 60% Duty Cycle 11.8 US gal 74.5 dB(A) at RD211 Air-Cooled, 20 − 280 10 kVA/kW, 42 A, Two-Cylinder, 23 (44.6 L) 23 ft (7 m) 250 A, 30 V DC, (Average) 120/240 V, 60 Hz HP Diesel Engine 100% Duty Cycle 3.2 Dimensions, Weights, and Operating Angles Dimensions A
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3.4 Fuel Consumption SA-180 263-A 3.5 Duty Cycle and Overheating duty1 5/95 / SB-180 262 Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating. Exceeding duty cycle can damage unit and void warranty. 60% Duty Cycle At 280 Amperes 100% Duty Cycle At 250 Amperes 6 Minutes W 4 Minutes W elding elding 6 4 Minutes Resting Minutes Resting Continuous Welding 16 OM-402
