14.3.6. Replacing Filter Capacitor Board Assembly

For ATevos rated 30-50 Adc, the Filtering Assembly (A7) consists of a capacitor bank (C1x) and bleed resistors (R9x) mounted on a printed circuit board. ATevos rated 75-100 Adc, feature discrete blue electrolytic filter capacitor ‘cans’ (C1x).

Preparation:

• Shut down and lock out all power to ATevo.
• Wait several minutes to allow internal potentials in capacitors to bleed off.
• Remove safety shield.
  

Removal (30-50 Adc):

• Locate Filter Board (A7) on top of heatsink, above Power Board (A2) and rectifier, along left side of ATevo.
• Remove two (2) nuts from studs connecting Power Board to Filter Board.
• Remove one (1) screw at top center of Filter Board.
• Remove existing Filter Board (A7) assembly.
  

Installation (30-50 Adc):

• Place new Filter Board (A7) onto studs of Power Board and replace two (2) nuts and (1) screw.
• Replace safety shield, close door, and restart ATevo.
  

For 75 Adc and 100 Adc ATevos:

• Locate the C1 discrete capacitor can(s) near the top left of the enclosure.
  

Removal of Existing Capacitor (C1x) Assembly (75 Adc and 100 Adc):

• Remove the screws attaching the capacitor to connection wires and/or bus bar.
• Loosen the screw on the capacitor bracket at the bottom of the capacitor mounting.
• Make note of the polarization of the capacitor (+ and – terminals).
• Remove capacitor(s) from bracket(s).
  

Installation of New C1 Capacitor Assembly (75 Adc and 100 Adc):

• Place new capacitor(s) into brackets maintaining the same polarity as the one(s) removed.
• Tighten the screw(s) on the capacitor bracket(s).
• Reconnect the connection wires and/or busbars in the same location using the capacitor terminal screws
• Replace safety shield, close door, and restart ATevo.