Lincoln Electric IM919 manual Electrical Connections

A-5 INSTALLATION A-5

The RANGER® 250 is shipped with the negative battery cable disconnected. Make certain that the RUN-STOP switch is in the STOP position. Remove the two screws from the rear battery tray using a screwdriver or a 3/8" socket. Attach the negative battery cable to the negative battery terminal and tighten using a 1/2" socket or wrench.

NOTE: This machine is furnished with a wet charged bat- tery; if unused for several months, the battery may require a booster charge. Be careful to charge the bat- tery with the correct polarity.

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MUFFLER OUTLET PIPE

Using the clamp provided secure the outlet pipe to the outlet tube with the pipe positioned such that it will direct the exhaust in the desired direction. Tighten using a 9/16" socket or wrench.

SPARK ARRESTER

Some federal, state or local laws may require that gaso- line or diesel engines be equipped with exhaust spark arresters when they are operated in certain locations where unarrested sparks may present a fire hazard. The standard muffler included with this welder does not quali- fy as a spark arrester. When required by local regula- tions, a suitable spark arrester, such as the K1898-1 must be installed and properly maintained.

CAUTION

An incorrect spark arrester may lead to damage to the engine or adversely affect performance.

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HIGH FREQUENCY GENERATORS FOR TIG APPLICATIONS

The K930-2 TIG Module is suitable for use with the Ranger® 250. The Ranger® 250 and any high fre- quency generating equipment must be properly grounded. See the K930-2 Operating Manual for completed instructions on installation, operation, and maintenance.

REMOTE CONTROL

The Ranger® 250 is equipped with a 6-pin and a 14- pin connector. The 6 pin connector is for connecting the K857 or K857-1 Remote Control (optional) or for TIG welding, the K870 foot Amptrol or the K963-3 hand Amptrol.

When in the CC-STICK, PIPE, and CV-WIRE modes and when a remote control is connected to the Amphenol, the auto-sensing circuit in the Ranger® 250 automatically switches the OUTPUT control from control at the welder to remote control .

The 14-pin connector is used to directly connect a wire feeder or TIG Module (K930-2) control cable. In the CV-WIRE mode, the Ranger® 250 auto-sensing circuit automatically makes the Ranger® 250 Output Control inactive and the wire feeder voltage control active when the control cable is connected to the 14 pin connector.

NOTE: When a wire feeder with a built in welding volt- age control is connected to the 14-pin connector, do not connect anything to the 6-pin connector.

ELECTRICAL CONNECTIONS

MACHINE GROUNDING

Because this portable engine driven welder creates its own power, it is not necessary to connect its frame to an earth ground, unless the machine is connected to premises wiring (home, shop, etc.)

To prevent dangerous electric shock, other equipment to which this engine driven welder supplies power must:

WARNING

1.Be grounded to the frame of the welder using a grounded type plug.

2.Be double insulated.

Do not ground the machine to a pipe that carries explosive or combustible material.

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When this welder is mounted on a truck or trailer, its frame must be electrically bonded to the metal frame of the vehicle, use a #8 or larger copper wire connect- ed between the machine grounding stud and frame of the vehicle. When this engine driven welder is con- nected to premises wiring such as that in a home or shop, its frame must be connected to the system earth ground. See further connection instructions in the sec- tion entitled "Standby Power Connections" as well as the article on grounding in the latest U.S. National Electrical Code and the local code.

In general, if the machine is to be grounded, it should be connected with a #8 or larger copper wire to a solid earth ground such as a metal water pipe going into the ground for at least ten feet and having no insulat- ed joints, or to the metal framework of a building which has been effectively grounded.

The U.S. National Electrical Code lists a number of alternate means of grounding electrical equipment. A machine grounding stud marked with the symbol

is provided on the front of the welder.

RANGER® 250