Overhauling Procedures - Mitsubishi Electric GK-2509YS2-CE Handbook

10. Overhauling procedures

Work precautions
• Before replacing parts or components, follow the instructions described in the troubleshooting.
• When servicing, always keep proper footing.
• When servicing, always unplug the power cord from the outlet, or turn off the circuit breaker. Pay sufficient
attention to avoid electric shock or injury.
• Always connect the power wires properly.
• Pay attention not to drop the parts or components.
• After completing repairs, check that the product operates properly.
• Always wear a pair of gloves when servicing.
• Servicing at a high place must be performed by two workers.
The part names in the text are standardized with the part names in the parts catalog. (There are some
exceptions.)
Note: The pictures and illustrations show GK-3009AS2-CE.
Precaution
Before replacing the parts or components, dismount the main unit of the product from the body fix plate.
Working at the high place causes a danger if the parts or components are replaced without dismounting the unit.
(1) Turn off the power supply.
[1] Turn off the external ON/OFF switch or ON/OFF switch on the product.
[2] Turn off the circuit breaker.
(2) Dismount the main unit.
[1] Disconnect the power wires (L, N) and earth lead wire.
a. Disconnect the connections between the power leads (L, N) and power cord leads (Brown, Blue).
b. Disconnect the outside connection of the earth lead wire.
Precaution
The circuit breaker must be turned off before disconnecting the power wires and earth lead wire.
[2] Dismount the main unit from the body fix plate.
a. Unscrew the screws (two PT screws 4x8, indicated by
b. Lift the main unit to unhook the hook eyelets, and then put the main unit on the floor.
Body fix plate
).
Frame assembly
Air supply
opening
─ 11 ─
Mounting hook on
Hook eyelet
body fix plate
Body fix plate