Overhaul Procedure - Mitsubishi Electric LGF-100GX-E Handbook

8. Overhaul procedure

Work precautions
• When touching the electric components such as circuit boards and fan motors, do not touch the components
for more than 5 minutes after power-off, and then start working.
• Before replacing parts, repair troubled sections according to the instructions described in the troubleshooting.
• When servicing, always keep proper footing.
• When servicing, make sure that the power cord is pulled out of the outlet, or the earth leakage breaker is off
if no mains connector is built in the product, so as no electrical shock or injury to occur. Pay suffi cient atten-
tion when working on the product.
• Always connect the power wire properly.
• After completing repairs, check that the unit operates properly.
• Always wear gloves when servicing.
( 1 ) Turning the power off
Shut down the unit.
Turn off the earth leakage breaker on the distribution board.
( 2 ) Fan parts
Unscrew the fi xing screws ( two PT screws 4 x 8, in-
), and remove the maintenance panel
dicated by
(small) .
Unscrew the fi xing screws ( three PT screws 4 x 8,
), and remove the control cover .
indicated by
Maintenance panel (small)
Control cover
─ 53 ─