6
Disassembly and Reassembly of the Motors
6.4
Disassembly and Reassembly of the R-, B-, T-Axis Motors
6-16
HW1485471
HW1485471
6.4
Disassembly and Reassembly of the R-, B-, T-Axis Motors
• Refer to
fig. 6-5(a) “Disassembly and Reassembly of the R-, B-, T-
Disassembly
1. Turn OFF the power supply of the YRC1000.
2. Remove the encoder connector of the R-, B-, and T-axis motor
(fixing bolt: pan-head screw M2), and then disconnect the encoder
cable. Turn the connector on the cable side of the power connector for
the R-, B-, and T-axis motor
to the cable side connector, 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.
3. Before removing the R-, B-, and T-axis motor
, support the U-arm
and the wrist with the chain block, etc., to prevent the U-arm from
rotating and the wrist from falling.
4. Release the brake.
5. Unscrew the hexagon socket head cap screws
, and insert the stud
bolts M4 (length: 20 mm or more) into the tapped hole M4 (2 places)
on the motor-flange face. Screw the stud bolt into the tapped hole so
that the clearance between the motor and the contact surface is
roughly 6 mm or more.
6. For the R-axis
Unscrew the hexagon socket head cap screw
, and then remove
the key
, gear unit (
,
, and inner ring of bearing
), and
plate
from the motor
. (It is not necessary to remove retaining
ring .)
For the B-axis
Unscrew the hexagon socket head cap screw
, and then remove
the key
, gear
, and plate
from the motor
.
For the T-axis
Unscrew the hexagon socket head cap screw
, and then remove
the key
, gear
, plate
, and plate
from the motor
.
NOTE
•
Make the U-arm point downwards as much as possible
at disassembly or reassembly of the R-, B-, T-axis
motor.
If the U-arm points upwards when removing the motor, a
lot of grease comes out, which makes disassembly or
reassembly difficult.
•
Support the wrist part with a base, etc., before removing
the R-, B-, T-axis motor. Otherwise, the wrist part may
rotate unexpectedly.
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