Disassembly And Reassembly Of B-Axis Motor - YASKAWA MOTOMAN-HP20D Maintenance Manual

HP20D
5.5
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5 Disassembly and Reassembly of Motors

5.5 Disassembly and Reassembly of B-Axis Motor

Disassembly and Reassembly of B-Axis Motor
• Refer to Fig. 5-5 "Disassembly and Reassembly of B-Axis Motor".
Disassembly
1. Turn OFF the DX100 power supply.
2. Remove the GT-SA bolts , then remove the covers .
3. Remove the plastic cover on the connector (signal) of the internal
wiring harness connected to the B-axis motor . Then, connect the
backup battery. (Refer to chapter 2 "Notes for Maintenance".)
4. Remove the plastic cover on the connector (power) of the internal
wiring harness connected to the B-axis motor . Then, disconnect the
connector (signal, power) of the internal wiring harness.
5. Remove the GT-SA bolts , then remove the B-axis motor
U-arm.
6. Remove the hexagon socket head cap screw , then remove the
pulley . (Use the holes (2 holes, diameter: 4 mm) on the surface of
3
the pulley to fix it.)
3
Reassembly
1. Mount the pulley on the B-axis motor .
3
2. Apply Loctite 242 to the thread part of the hexagon socket head cap
screw . Then, tighten it with the tightening torque shown in Table 5-5
4
"B-Axis Motor Parts Checklist". (Use the holes (2 holes, diameter:
4 mm) on the surface of the pulley
3. Mount the B-axis motor
pulley .
3
4. Then, tighten the GT-SA bolts
Table 5-5 "B-Axis Motor Parts Checklist".
(Refer to chapter 8 "Disassembly, Reassembly, and Adjustment of B-
and T-axis Timing Belts" to adjust the belt tension.)
5. Connect the connector (signal, power) of the internal wiring harness to
the B-axis motor , and remove the backup battery. Then, put the
1
plastic cover on the connector.
6. Mount the covers with the GT-SA bolts . (Apply ThreeBond 1206C
5
on the matching surface between the cover
7. Tighten the GT-SA bolts
5-5 "B-Axis Motor Parts Checklist".
8. Turn ON the DX100 power supply.
5-11
6
1
1
2
4
1
to fix the it.)
3
on the U-arm, then put the belt on the
1
with the tightening torque shown in
2
6
and the U-arm.)
5
with the tightening torque shown in Table
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