Cleaning The Welding Power Source - Thermal Arc Fabricator 211i Operating Manual

FABRICATOR 211i
Power Source Calibration
A. Schedule
Output testing of all Thermal Arc Inverter Power Sources and applicable accessories shall be conducted at
regular intervals to ensure they fall within specified levels. Calibration intervals shall be as outlined below -
1. For transportable equipment, at least once every 3 months; and
2. For fixed equipment, at least once every 12 months.
If equipment is to be used in a hazardous location or environments with a high risk of electrocution as
outlined in EN 60974-1, then the above tests should be carried out prior to entering this location.
B. Calibration Requirements
Where applicable, the tests outlined in Table 6-3 below shall be conducted by an accredited Thermal Arc
service agent.
Output current (A) to be checked to ensure it falls within applicable Thermal Arc power source specifications
Output Voltage (V) to be checked to ensure it falls within applicable Thermal Arc power source specifications
Motor Speed (RPM) of wire drive motors to be checked to ensure it falls within required Thermal Arc power
source / wire feeder specifications
Accuracy of digital meters to be checked to ensure it falls within applicable Thermal Arc power source
specifications
Periodic calibration of other parameters such as timing functions are not required unless a specific fault
has been identified.
C. Calibration Equipment
All equipment used for Power Source calibration shall be in proper working condition and be suitable for
conducting the measurement in question. Only test equipment with valid calibration certificates (NATA
certified laboratories) shall be utilized.

5.03 Cleaning the Welding Power Source

There are dangerous voltage and power levels present inside this product. Do not attempt to open
or repair unless you are a qualified electrical tradesperson. Disconnect the Welding Power Source
from the Mains Supply Voltage before disassembling.
To clean the Welding Power Source, open the enclosure and use a vacuum cleaner to remove any accumulated
dirt, metal filings, slag and loose material. Keep the shunt and lead screw surfaces clean as accumulated foreign
material may reduce the welders output welding current.
PROBLEMS AND ROUTINE SERVICE
Testing Requirements
Table 5-3: Calibration Parameters
WARNING
5-4
PROBLEMS/SERVICE
Manual 0-5225