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SPARK ARRESTER
Some federal, state or local laws may require that gasoline 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 qualify as a spark arrester. When required by local regulations, a suitable spark arrester, such as the
CAUTION
An incorrect spark arrestor may lead to damage to the engine or adversely affect performance.
REMOTE CONTROL
The RANGER 305D is equipped with a
When in TOUCH START TIG mode and when a Amptrol is connected to the
The
WARNING
NOTE: When a wire feeder with a built in welding voltage control is connected to the
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 be grounded to the frame of the welder using a grounded type plug or be double insulated.
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 the frame of the vehicle. When this engine driven welder is connected to premises wiring such as that in a home or shop, its frame must be connected to the sys- tem earth ground. See further connection instructions in the section entitled "Standby Power Connections" as well as the article on grounding in the latest 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 insulated joints, or to the metal framework of a building which has been effectively grounded. Do not ground the machine to a pipe that carries explosive or com- bustible material.
The National Electrical Code lists a number of alter- nate means of grounding electrical equipment. A machine grounding stud marked with the symbol 
is provided on the front of the welder.
WELDING TERMINALS
The RANGER 305D is equipped with a toggle switch for selecting "hot" welding terminal when in the "WELD TERMINALS ON" position or "cold" welding terminal when in the "REMOTELY CONTROLLED" position.
WELDING OUTPUT CABLES
With the engine off connect the electrode and work cables to the output studs. The welding process dic- tates the polarity of the electrode cable. These con- nections should be checked periodically and tightened with a 3/4" wrench.
Table A.1 lists recommended cable sizes and lengths for rated current and duty cycle. Length refers to the distance from the welder to the work and back to the welder. Cable diameters are increased for long cable lengths to reduce voltage drops.