Disassembly And Reassembly Of The U-Axis Motor - YASKAWA MOTOMAN-MH5S Maintenance Manual

176183-1CD
MH5S (II) /MH5F
5.3
5 Disassembly and Reassembly of the Motor

5.3 Disassembly and Reassembly of the U-Axis Motor

Disassembly and Reassembly of the U-Axis Motor
• Refer to Fig. 5-3 "Disassembly & Assembly of U-Axis Motor".
 Disassembly
1. Turn OFF the DX100/DX200/FS100 power supply.
2. Unscrew the hexagon socket button head screws
covers on the right and left sides
3. Connect the backup battery with the cable of U-axis motor
(Refer to Chapter 2 "Notes for Maintenance".)
4. Disconnect the cables (both encoder and power-cables) of the U-axis
motor from the internal wiring harness.
1
5. Unscrew the hexagon socket head cap screws
axis motor with the M-base
1
U-arm to avoid it from rotating.
6. Unscrew the GT-SA bolts
axis motor .
1
7. Unscrew the hexagon socket head cap screw
pulley .
3
 Reassembly
1. Mount the pulley
2. Attach the conical spring washer and the washer
socket head cap screw
and tighten it with the tightening torque shown in Table 5-3 "U-Axis
Motor Parts Checklist".
3. Mount the M-base
bolts with the tightening torque shown in Table 5-3.
2
4. Mount the U-axis motor
U-arm and put the timing belt on the pulley
5. Attach the conical spring washer to the hexagon socket head cap
screws , tighten them with the tightening torque shown in Table 5-3.
6
(Refer to section 8.1 "Disassembly and Reassembly of L- and U-Axis
Timing Belts" and adjust the initial tension of the timing belt.)
6. Connect the cables (both encoder and power-cables) of the U-axis
motor with the internal wiring harness.
1
7. Remove the backup battery.
8. Mount the cover
screws with the tightening torque shown in Table 5-3.
9
9. Turn ON the DX100/DX200/FS100 power supply.
7 8
. When remove the motor, support the
5
and remove the M-base
2
on the U-axis motor
1
3
, then apply LOCTITE 242 to the thread part
4
on the U-axis motor
5
which is reassembled to the step 3 on the
1
and tighten the hexagon socket button head
7 8
HW1483638
5-6
and remove the
9
.
1
and remove the U-
6
from the U-
5
and remove the
4
.
to the hexagon
10
and tighten the GT-SA
1
.
3
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