CKD AX Series Instruction Manual page 168

④ Cooling fan (for driver)
Replacement Timing:
Replace about every 20000 hours.
How To Replace:
Remove the right side cover and the front cover of the driver and remove the circuit
board located at the top.
(This is the resolver board for the H type drivers or the communications board for the GH
type drivers).
Disconnect the cooling fan cable connector, remove four set screws, and replace with
the new cooling fan.
Install the cooling fan so that the air flows upward.
Remove the circuit board
located here.
Set screw
① Remove four set screws and remove
the circuit board.
Fig. 11.2 Replacing the Cooling Fan
(4) Replacing Electrolytic Capacitor
The capacitors used for the driver are an electrolysis type, which deteriorates with time.
Deterioration speed depends on the ambient temperature and using condition. When
used in an air conditioned space, the condensers will last about ten years under daily
operation for 8 hours. Request CKD to replace it with a new one.
When solution leak or open pressure relief valve are found in the periodical inspection,
immediately request CKD to repair.
Discontinue
Connector
— 11-3 —
Plate Fan
Set screw
② Disconnect the connector and
remove the fan.
11
MAINTENANCE AND
TROUBLESHOOTING
[SMB-14E]