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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 connected between the machine grounding stud and the frame of the vehicle. When this engine driven welder is connect- ed 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" .
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.
A machine grounding stud marked with the symbol is provided on the front of the welder.
WELDING TERMINALS
The machine 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 "REMOTE" 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 connec- tions should be checked periodically and tightened with a 19mm 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.
TABLE
TOTAL COMBINED LENGTH OF ELECTRODE AND WORK CABLES
CABLE INSTALLATION
Install the welding cables to your machine as follows:
1.The diesel engine must be OFF to install welding cables.
2.Remove the flanged nuts from the output termi- nals.
3.Connect the electrode holder and work cables to the weld output terminals. The terminals are identi- fied on the case front.
4.Tighten the flanged nuts securely.
5.Be certain that the metal piece you are welding (the “work”) is properly connected to the work clamp and cable.
6.Check and tighten the connections periodically.
CAUTION
•Loose connections will cause the output termi- nals to overheat. The terminals may eventually melt.
•Do not cross the welding cables at the output terminal connection. Keep the cables isolated and separate from one another.
AUXILIARY POWER
The auxiliary power capacity is 8500 watts Peak, 8,000 Watts Continuous of 50 Hz, three phase power. The auxiliary power capacity rating in watts is equivalent to
STANDBY POWER CONNECTIONS
The machine is suitable for temporary, standby or emergency power using the engine manufacturer’s recommended maintenance schedule.
The machine can be permanently installed as a standby power unit for 400 VAC, three phase, 20 amp service.
Cable Length
Cable Size for
305Amps
100% Duty Cycle
1/ 0 AWG
2 / 0 AWG
3 / 0 AWG
Connections must be made by a licensed electrician who can determine how the power can be adapted to the particular installation and comply with all applica- ble electrical codes.
•Take necessary steps to assure load is limited to the capacity of the RANGER 305D (CE).
WARNING
•Only a licensed, certified, trained electrician should install the machine to a premises or resi- dential electrical system. Be certain that: