39
16-2. Rotating axis drive motor
16-2-1. To remove drive motor
When replacing the motor, remove the motor according to the following procedure. (See Fig.16)
1) Drain lubrication oil from the rotating axis lub. oil drain port. (See the outline drawing.)
2) Remove the cover
⑦
.
3) Remove hexagon socket head cap screws
⑤
which fix the motor
④
.
4) Remove the motor
④
slowly, raising it.
16-2-2. To mount drive motor
1) Clean mounting face (motor
④
) and O-ring groove.
2) Mount the O-ring
②
and mount the motor
④
by the reverse procedure as the above removing.
3) After mounting the motor, adjust the backlash of spur gears
⑥
according to item 12.
Mount the motor to the spur gear
⑥
carefully after cleaning so that the
spur gears are not damaged.
When mounting the motor
④
, take extreme care so that O-ring
②
is
not damaged because lubrication oil may enter into the motor case.
Connect the connector
①
according to item 17-2. Connect the
connector
③
securely so that the pin does not cause contact failure,
and also cables are not bent or crushed.
O-ring
②
Spur gear
⑥
Connector
③
Connector
①
Motor
④
Cover
⑦
Hexagon socket
head cap screw
⑤
CAUTION
CAUTION
CAUTION
Fig.16