Maintenance; Periodic Inspection, Cleaning; Welding System Fittings And Connectors - Cebora SOUND MIG 3840/T Pulse Service Manual

CEBORA S.p.A.

3 - MAINTENANCE

ANY INTERNAL INSPECTIONS OR REPAIRS MUST BE CARRIED OUT BY QUALIFIED
BEFORE BEGINNING MAINTENANCE OPERATIONS, UNPLUG THE MACHINE FROM
THE MAINS AND WAIT FOR THE INTERNAL CAPACITORS TO DISCHARGE.
THE DISCHARGE TIME FOR THE DC-CAPACITORS (561) IS HEAVILY AFFECTED BY
THE OPERATING MODE OF THE FLYBACK BOARD (539). UNDER NORMAL
CONDITIONS THE TIME IS APPROXIMATELY 3 MINUTES, WITH THE FLYBACK
BOARD (539) BROKEN OR DISCONNECTED IT MAY BECOME 6 MINUTES.

3.1 - Periodic inspection, cleaning.

Periodically open the grids on the power source and check inside the aeration tunnel.
Remove any dirt or dust to ensure smooth air flow, and thus adequate cooling of the internal
parts of the power source.
Remove any dirt or metal dust from the wire feed liner and gear motor unit, also making sure
that they are not worn to the point of needing replacement.
Check the condition of the output terminals, output and power supply cables of the power
source; replace if damaged.
Check the condition of the internal power connections and connectors on the electronic
boards; if you find "loose" connections, tighten or replace the connectors.

3.2 - Welding system fittings and connectors.

3.302.191
WARNINGS
PERSONNEL.
10
15/02/05