Firepower MST 180i Operating Manual page 79

Note that due to the dangers of stray output currents damaging fixed wiring, the integrity of fixed wiring supplying Firepower
welding Power Sources should be inspected by a licensed electrical worker in accordance with the requirements below -
1. For outlets/wiring and associated accessories supplying transportable equipment - at least once every 3 months;
and
2. For outlets/wiring and associated accessories supplying fixed equipment - at least once every 12 months.
D. General Maintenance Checks
Welding equipment should be regularly checked by an accredited Firepower Service Provider to ensure that:
1. Flexible cord is of the multi-core tough rubber or plastic sheathed type of adequate rating, correctly connected
and in good condition.
2. Welding terminals are in suitable condition and are shrouded to prevent inadvertent contact or short circuit.
3. The Welding System is clean internally, especially from metal filing, slag, and loose material.
E. Accessories
Accessory equipment, including output leads, electrode holders, torches, wire feeders and the like shall be inspected
at least monthly by a competent person to ensure that the equipment is in a safe and serviceable condition. All unsafe
accessories shall not be used.
F. Repairs
If any parts are damaged for any reason, it is recommended that replacement be performed by an accredited Firepower
Service Provider.
Power Source Calibration
A. Schedule
Output testing of all Firepower 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 Firepower service agent.
Output current (A) to be checked to ensure it falls within applicable Firepower Power Source specifications
Output Voltage (V) to be checked to ensure it falls within applicable Firepower Power Source specifications
Motor Speed (RPM) of wire drive motors to be checked to ensure it falls within required Firepower Power
Source / wire feeder specifications
Accuracy of digital meters to be checked to ensure it falls within applicable Firepower Power Source specifi-
cations
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.
Manual 0-5339
Testing Requirements
Table 5-3: Calibration Parameters
Firepower MST 180i
5-3 TROUBLE SHOOTING AND SERVICE