Tweco 175 TE Arcmaster - Manual (Page 20)

arcmaster 175 te introDuction
InIntroduction 2-2 Manual 0-5116
2.06 Transportation Methods
CAUTION
ELECTRIC SHOCK can kill. DO NOT TOUCH
live electric parts. Disconnect input power
conductors from de-energized supply line
before moving the welding power source.
!
WARNING
FALLING EQUIPMENT can cause serious
personal injury and equipment damage.
Lift unit with handle on top of case. Use handcart or
similar device of adequate capacity. If using a fork
lift vehicle, place secure unit on a proper skid before
transporting.
2.07 Duty Cycle
The rated duty cycle of a Welding Power Source,
is a statement of the time it may be operated at its
rated welding current output without exceeding the
temperature limits of the insulation of the component
parts. To explain the 10 minute duty cycle period
the following example is used. Suppose a Welding
Power Source is designed to operate at a 20% duty
cycle, 175 amperes at 26.8 volts. This means that
it has been designed and built to provide the rated
amperage (175A) for 2 minutes, i.e. arc welding time,
out of every 10 minute period (20% of 10 minutes
is 2 minutes). During the other 8 minutes of the 10
minute period the Welding Power Source must idle
and allowed to cool.
2.08 User Responsibility
This equipment will per form as per the
informationcontained herein when installed, operated,
maintaineand repaired in accordance with the
instructions provided. This equipment must be
checked periodically. Defective equipment (including
welding leads) should not be used. Parts that
are broken, missing, plainly worn, distorted or
contaminated, should be replaced immediately.
Should such repairs or replacements become
necessary, it is recommended that such repairs
be carried out by appropriately qualified persons
approved by Thermal Arc. Advice in this regard can
be obtained by contacting accredited Thermal Arc
Distributor.
This equipment or any of its parts should not be altered
from standard specification without prior written
approval of Thermal Arc. The user of this equipment
shall have the sole responsibility for any malfunction
which results from improper use or unauthorised
modification from standard specification, faulty
maintenance, damage or improper repair by anyone
other than appropriately qualified persons approved
by Thermal Arc.