INSTALLATION
A-8 A-8
RANGER 305D
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NOTE: Long lengths of welding cable should not
remain coiled or wrapped while welding.
• Loose connections will cause the output terminals to
overheat. The terminals may eventually melt.
• Do not cross the welding cables at the output termi-
nal connection. Keep the cables isolated and sepa-
rate from one another.
-----------------------------------------------------------AUXILIARY POWER RECEPTACLES
The auxiliary power of the RANGER 305D consists of
two 20Amp-120 VAC (5-20R) duplex receptacles with
GFCI protection and one 50 Amp 120/240 VAC (14-
50R) receptacle. The 240 VACreceptacle can be split
for single phase 120 VACoperation.
The auxiliary power capacity is 10,000 watts Peak,
9,500Watts Continuous of 60 Hz, single phase power.
The auxiliary power capacity rating in watts is equiva-
lent to volt-amperes at unity power factor. The max
permissible current of the 240 VACoutput is 42 amps.
The 240 VACoutput can be split to provide two sepa-
rate 120 VAC outputs with a max permissible current
of 42 Amps per output to two separate 120 VAC
branch circuits (these circuits cannot be paralleled).
Output voltage is within ± 10% at all loads up to rated
capacity. Auxiliary power is protected by circuit break-
ers.
The 120 V auxiliary power receptacles should only be
used with three wire grounded type plugs or approved
double insulated tools with two wire plugs.The current
rating of any plug used with the system must be at
least equal to the current capacity of the associated
receptacle.
NOTE: The 240 V receptacle has two 120 V circuits,
butare of opposite polarities and cannot be paralleled.
STANDBY POWER CONNECTIONS
The RANGER 305D is suitable for temporary,standby
or emergency power using the engine manufacturerʼs
recommended maintenance schedule.
The RANGER 305D can be permanently installed as
a standby power unit for 240 VAC, 3 wire, single
phase,50 amp service. Connections must be made by
a licensed electrician who can determine how the
120/240 VAC power can be adapted to the particular
installation and comply with all applicable electrical
codes.The following information can be used as a
guide by the electrician for most applications. Referto
the connection diagram in Figure A.2.
CAUTION
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. The National Electrical
Code lists a number of alternate means of grounding
electrical equipment. A machine grounding stud
marked with the ground symbol is provided on the
front of the welder.
WELDING OUTPUT CABLES
With the engine off connect the electrode and work
cables to the output terminals. The welding process
dictates the polarity of the electrode cable. These con-
nections should be checked periodically and tightened
with a wrench.
TableA.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. Long lengths of cable
should not be left coiled when welding.
CABLE INSTALLATION TABLEA.1
Install the welding cables to your RANGER 305D as
follows.
1. The engine must be OFF to install welding cables.
2. Remove the flanged nuts from the output terminals.
3. Connect the electrode and work cables to the weld
output terminals. The terminals are identified on the
case front.
4. Tightenthe 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.
TOTAL COMBINED LENGTH OFELECTRODE AND WORK CABLES
Cable Length
0-100Ft. (0-30 meters)
100-150 Ft. (30-46 meters)
150-200 Ft. (46-61 meters)
Cable Size for
305Amps
100% Duty Cycle
1 / 0 AWG
2 / 0 AWG
3 / 0 AWG