Lincoln Electric 12667

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

The Lincoln Electric Ranger 305G is a gasoline engine-powered DC multi-process welding power source and a 120/240 volt AC power generator, designed for professional use. It is suitable for a variety of welding applications including CV-WIRE, DOWN HILL PIPE, CC-STICK, and TOUCH START TIG, and can also be used for limited arc gouging. The machine is designed for portability and can be mounted on a vehicle or used with an optional undercarriage for mobility on construction sites.

Function Description:

The Ranger 305G serves as a versatile welding machine and an auxiliary power generator. Its engine drives a generator that supplies three-phase power for the DC welding circuit and single-phase power for the AC auxiliary outlets. The DC welding control system utilizes "Chopper Technology" for superior welding performance.

As a welding power source, it offers continuous control of welding current or voltage through its OUTPUT CONTROL dial, depending on the selected welding mode. Digital meters display output voltage (in CV-WIRE mode) or current (in CC-STICK, DOWN HILL PIPE, and TIG modes) and retain the display for seven seconds after welding ceases, allowing operators to read the values just prior to stopping. The ARC CONTROL dial adjusts arc force in WIRE, STICK, and DOWN HILL PIPE modes, providing a soft or crisp arc as needed.

As an auxiliary power generator, it provides 10,500 watts Peak and 9500 watts Continuous of 60 Hz, single-phase power. It features two 20 Amp-120 VAC (5-20R) duplex receptacles and one 50 Amp 120/240 VAC (14-50R) receptacle. The 240 VAC receptacle can be split for single-phase 120 VAC operation. The auxiliary power is protected by circuit breakers.

Important Technical Specifications:

Engine: Kohler CH23S, CH680 (for Code 12667) or Kohler CH730 (for Code 13170).
Horsepower: 23 HP at 3600 RPM (Full Load) for gasoline engine.
Displacement: 41(674) cu. in.(cu. cm.) for High Idle 3700 RPM, 44.2(725) cu. in.(cu. cm.) for Low Idle 2400 RPM.
Bore x Stroke: 3.15 x 2.64 (80 x 67) for High Idle 3700 RPM, 3.27 x 2.64 (83 x 67) for Low Idle 2400 RPM.
Starting System: 12VDC Battery & Starter.
Fuel Capacity: 12 gal. (45.4 L).
Oil Capacity: 2.0 qt. (1.9 ltr.).
Auxiliary Power: 10,500 Watts Peak, 9500 Watts Continuous, 60 Hz, 120/240 Volts.
Welding Output (Rated Output @ 104°F (40°C) - Welder):
- CC STICK DC Output: 305 Amps at 29 Volts, 100% Duty Cycle.
- CC STICK Output Range: 20 to 305 Amps.
- PIPE DC Output: 305 Amps at 29 Volts, 100% Duty Cycle.
- PIPE Output Range: 20 to 305 Amps.
- CC TIG DC Output: 250 Amps at 30 Volts, 100% Duty Cycle.
- CC TIG Output Range: 20 to 250 Amps.
- CV WIRE DC Output: 305 Amps at 29 Volts, 100% Duty Cycle.
- CV WIRE Output Range: 14 to 29 Volts.
- OCV (Open Circuit Voltage): 60 Volts at 3700 RPM.
Dimensions (approximate): Height 30.00 in. (762.0 mm), Width 21.50 in. (546.0 mm), Depth 42.25 in. (1073.0 mm).
Weight: 467 lbs. (212kg) with full tank of gasoline.
Engine Components:
- Lubrication: Full Pressure with Full Flow Filter, 5% Regulation.
- Valve Lifters: Hydraulic.
- Fuel System: Mechanical Fuel Pump with additional electric fuel lift pump.
- Governor: Mechanical Governor.
- Air Cleaner: Dual Element.
- Engine Idler: Automatic Idler.
- Muffler: Low noise Muffler. Top outlet can be rotated. Made from Long life, aluminized steel.
- Engine Protection: Shutdown on low oil pressure.
Engine Warranty: 2 year unlimited hours (See engine manufacturer warranty for details).

Usage Features:

Welding Modes: Supports CV-WIRE, DOWN HILL PIPE, CC-STICK, and TOUCH START TIG.
Digital Output Meters: Provide accurate readings of voltage and current, with a memory feature to hold readings for seven seconds after welding stops.
ARC CONTROL: Allows adjustment of arc force for different welding characteristics (soft to crisp).
IDLER SWITCH: Offers HIGH and AUTO positions. In AUTO, the engine idles down when no load is present and accelerates to full speed when welding or auxiliary power is drawn.
WELD TERMINALS CONTROL SWITCH: In "WELD TERMINALS ON" position, output is always hot. In "REMOTELY CONTROLLED" position, output is controlled by a wire feeder or amptrol device.
WIRE FEEDER VOLTMETER SWITCH: Matches polarity of the wire feeder voltmeter to the electrode.
Engine Controls: RUN/STOP switch, CHOKE for quick starting, and START PUSH BUTTON.
Electric Fuel Gauge/Hour Meter: Provides accurate fuel level indication and tracks total engine running time for maintenance scheduling.
High Altitude Operation: Requires derating welder output by 3.5% for every 1000 ft. above 3000 ft. For consistent operation above 5,000 ft., a high-altitude carburetor jet should be installed.
High Temperature Operation: Requires derating welder output by 2 volts for every 10°C above 40°C.
Towing: Recommended with Lincoln's K957-1 trailer.
Wire Feeder Connections: Compatible with Lincoln Electric LN-7, LN-8, LN-15, and LN-25 wire feeders, as well as LN-742, K487-25 Spool Gun, and Cobramatic.

Maintenance Features:

Routine Maintenance: Includes engine oil change, oil filter change, air cleaner service, spark plug service, fuel filter replacement, engine adjustment, battery maintenance, and servicing of the optional spark arrestor.
Engine Oil Change: Recommended to drain oil when warm, refill with specified amount and type of 4-stroke motor oil (API service classification SG or SH, SAE 10W-30 for general use).
Air Cleaner Service: Regular cleaning of the pre-cleaner and replacement of the paper element is crucial, especially in dusty areas. Never use gasoline or low flash point solvents for cleaning.
Spark Plug Service: Regular inspection, cleaning, and gapping of spark plugs (0.030 in. (0.76 mm) gap) is necessary for proper engine operation.
Fuel Filter: Requires periodic replacement.
Battery Maintenance: Regular checking of electrolyte levels and cleaning of terminals.
Welder/Generator Maintenance: Storage in clean, dry areas. Periodic cleaning of the generator and controls with low-pressure air. Inspection of brushes and slip rings when a generator overhaul is necessary.
Troubleshooting Guide: Provides a structured approach to diagnose and resolve common machine malfunctions, with recommendations to contact a Lincoln Authorized Field Service Facility for complex issues.
Safety Precautions: Emphasizes electrical shock prevention, arc ray protection, fume and gas hazards, fire and explosion risks, and cylinder safety. It also highlights the importance of qualified personnel for installation, operation, and service.