Safety Precautions; Enclosure Rating; Select Suitable Location; Grinding - Lincoln Electric ASPECT 375 Operator's Manual

ASPECT™ 375

SAFETY PRECAUTIONS

Read entire installation section
before starting installation.
WARNING
ELECTRIC SHOCK can kill.
• Only qualified personnel should
perform this installation.
• Turn the input power OFF at the
disconnect switch or fuse box before
working on this equipment.
• Do not touch electrically hot parts.
• Always connect the ASPECT™ 375 grounding screw
(behind the terminal block located near the back of
the right case side) to a good electrical earth ground.
• Always connect the ASPECT™ 375 to a power supply
grounded in accordance with the National Electrical
Code and all local codes.
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SELECT SUITABLE LOCATION

Place the welder where clean cooling air can freely circulate in
through the front vents and out through the rear vents. Dirt, dust
or any foreign material that can be drawn into the welder should
be kept at a minimum. Failure to observe these precautions can
result in excessive operating temperatures and nuisance trips.

GRINDING

Do not direct grinding particles towards the welder. An
abundance of conductive material can cause maintenance
problems.
STACKING
The ASPECT™ 375 cannot be stacked .
UNDERCARRIAGE LIFTING AND MOVING
When the ASPECT™ 375 is purchased as a welding package, or
used with any of the available Undercarriage optional
accessories, proper installation makes the ASPECT™ 375
handles nonfunctional. Do not attempt to lift the power source
with an undercarriage attached. The undercarriage is designed
for hand moving only; mechanized movement can lead to
personal injury and/or damage to the ASPECT™ 375.
TILTING
Each machine must be placed on a secure, level surface, either
directly or on a recommended cart. The machine may topple
over if this precaution is not followed.

ENCLOSURE RATING

ASPECT™ 375 power sources carry an IP23 Enclosure rating. They
are rated for use in damp, dirty rain-sheltered environments.
MACHINE GROUNDING AND HIGH FREQUENCY
INTERFERENCE PROTECTION
Locate the ASPECT™ 375 away from radio controlled machinery.
The normal operation of the ASPECT™ 375 may adversely affect
the operation of RF controlled equipment, which may result in bodily
injury or damage to the equipment.
The frame of the welder must be grounded. A ground screw marked with
the symbol is located on the rear panel (Figure A.1) for this purpose.
See your local and national electrical codes for proper grounding methods.
The high frequency generator, being similar to a radio
transmitter, can be blamed for many radio, TV and electronic
equipment interference problems. These problems may be the
result of radiated interference. Proper grounding methods can
reduce or eliminate radiated interference.
Radiated interference can develop in the following four ways:
• Direct interference radiated from the welder.
• Direct interference radiated from the welding leads.
• Direct interference radiated from feedback into the power
lines.
• Interference from re-radiation of "pickup" by ungrounded
metallic objects.
Keeping these contributing factors in mind, installing the
equipment per the following instructions should minimize
problems:
1. Keep the welder power supply lines as short as possible. Input
leads within 50 feet (15.2 m) of the welder should be enclosed
in rigid metallic conduit or equivalent shielding. There must be
good electrical contact between this conduit and the welder.
Both ends of the conduit must be connected to a driven
ground and the entire length must be continuous.
2. Keep the work and electrode leads as short as possible and as
close together as possible. Lengths should not exceed 25 feet
(7.6 m). Tape the leads together when practical.
A-2
INSTALLATION