6
Disassembly and Reassembly of the Motors
6.3
Disassembly and Reassembly of U-Axis Motor
6-11
HW1485471
HW1485471
6.3
Disassembly and Reassembly of U-Axis Motor
• Refer to
fig. 6-4(a) “Disassembly and Reassembly of the U-Axis
Disassembly
1. Support the U-arm with the chain block, etc.
2. Turn OFF the power supply of the YRC1000.
3. Unscrew the hexagon socket head cap screws
, and remove the
cover .
4. Unscrew the hexagon socket head cap screws
and
, and
remove the support
.
5. Remove the encoder connector of the U-axis motor
(fixing bolt:
pan-head screw M2), and then disconnect the encoder cable.
6. Turn the connector on the cable side of the power connector for the U-
axis motor
, and then disconnect the power cable. If the connector
does not turn, remove the connector by holding the connector on the
cable side with a pair of plastic pliers, etc.
7. Mount two eyebolts on the thread part M8 (2 places) of the motor, and
lift the motor to prevent it from falling down.
8. Unscrew the hexagon socket head cap screws
, and insert stud
bolts M6 (length: 30 mm or more) into the tapped hole M6 (4 places)
on the motor flange face. Screw the stud bolts so that the clearance
between the contact surface and the motor is 5 mm or more.
9. Remove the U-axis motor
horizontally from the casing. At this
time, be careful not to damage the oil seal in the casing.
10. Unscrew the hexagon socket head cap screw
, and then remove
the shaft
, the key
, the shaft
, the gear
, and the pipe
.
CAUTION
When removing the motor from the casing, a lot of grease comes out
from the outlet of the motor.
Make sure to protect peripheral equipment in advance.
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