Tweco 170 HF Weldskill - Manual (Page 15)

WELDSKILL 170 HF INVERTER
2-3 April 23, 2008
2.05 Description
Weldskill 170 HF
This compact heavy duty, inverter welding machine
has infinitely adjustable welding current from 5 to 170
amps. It runs standard general purpose 2.5mm
electrodes for light gauge work, generally less than
3.0mm thick, and 3.2mm or 4.0mm electrodes for
heavier material. The unit also has a lift TIG and HF
TIG function that offers stable TIG welding
characteristics when used with a suitable TIG torch
and shielding gas.
2.06 User Responsibility
This equipment will perform as per the information
contained herein when installed, operated, maintained
and 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
CIGWELD. Advice in this regard can be obtained by
contacting accredited CIGWELD Distributor.
This equipment or any of its parts should not be
altered from standard specification without prior
written approval of CIGWELD. 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 CIGWELD.
2.07 Packaged Items
• 170 HF Inverter Power Source
• Electrode Holder with 5m Lead
• Work Clamp with 5m Lead
• Regulator/Flowmeter
• Tig Torch
• Tig Torch Accessories
• Plastic Tool Case
• Operating Manual
2.08 Transporting Methods
These units are equipped with a handle for carrying
purposes.
!
WARNING
ELECTRIC SHOCK can kill. DO NOT TOUCH
live electrical 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 and secure unit on a
proper skid before transporting.
2.09 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 15% duty cycle,
90 amperes at 23.6 volts. This means that it has been
designed and built to provide the rated amperage
(90A) for 1.5 minutes, i.e. arc welding time, out of
every 10 minute period (15% of 10 minutes is 1.5
minutes). During the other 8.5 minutes of the 10
minute period the Welding Power Source must idle
and allowed to cool.