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Routine Maintenance Procedures
• Visual Inspection
• Check external surfaces, connectors, indicators and wiring/cable assemblies for signs of
dirt, wear, and damage.
• Cleaning
• Brush dust from controls and receptacles using a small paintbrush.
• Wipe surfaces with clean, dry cheesecloth.
• Clean exterior surface with clean cheesecloth moistened with isopropyl alcohol or a
general purpose detergent.
NOTE: Do not allow cleaning solution into the interior of the enclosure or into any connectors.
• Clean electrical contacts with approved spray-type contact cleaner.
Clean internal receptacles and circuit boards with hand controlled, dry-air jet (not more than 15
lb/in²), clean cheesecloth moistened with isopropyl alcohol. Wipe dry with clean, dry cheesecloth.
Replacement Procedures
• Wiring Harness Replacement
• Switch the utility circuit breaker OFF.
• Open the door(s) of the enclosure.
• Switch the CTFLM OFF.
• Remove the CTFLM.
• Disconnect the stinger lug from the pin connector, center pin.
• Disconnect the stinger lug from the pin connector center pin.
• Disconnect the utility wires and the ground wires.
• Remove the two quick disconnect connectors from the top of the indicator lamp socket.
• Remove the module connector plate by removing the Phillips head screws located on
the front and back of the enclosure.
• Slide the module connector plate and harness to the left and out of the harness plate.
• Slide the replacement connector plate and harness onto the harness plate and replace the
screws.
• Reattach the ground wires.
• Replace the quick disconnects on the indicator lamp socket.
• Reconnect the utility wires and the stinger lug.
• Close the front door of the enclosure.