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

159281-1CD
HP20D
5.3
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5 Disassembly and Reassembly of Motors

5.3 Disassembly and Reassembly of U-Axis Motor

Disassembly and Reassembly of U-Axis Motor
• Refer to Fig. 5-3 "Disassembly and Reassembly of U-Axis Motor".
Disassembly
1. Turn OFF the DX100 power supply, then drain grease.
2. Connect the backup battery. (Refer to chapter 2 "Notes for
Maintenance".)
3. Remove the cross head APS bolts , then remove the cover .
4. Disconnect the connector (signal, power) of the internal wiring
harness.
5. Support the U-arm with a chain block, etc. so that the U-arm does not
rotate before removing the U-axis motor .
6. Remove the GT-SA bolts . Insert stud bolts M6 (length of the thread
part: 30 mm or more) in the tapped holes M6 (2 holes) on the flange
face of the U-axis motor . Screw the stud bolts in until the gap
between the motor and the matching surface becomes 10 mm or
more. Then, remove the U-axis motor
7. Remove the hexagon socket head cap screw , then remove the input
gear and the key .
3 4
Reassembly
1. Mount the key and the input gear
4
(The key is attached to the U-axis motor .)
4
2. Put the conical spring washer on the hexagon socket head cap
screw , then apply Loctite 242 to the thread part of the screw. Then,
5
tighten it with the tightening torque shown in Table 5-3 "U-Axis Motor
Parts Checklist".
3. Apply ThreeBond 1206C on the matching surface between the flange
face of the U-axis motor
motor on the casing.
1
4. Tighten the GT-SA bolts
5-3 "U-Axis Motor Parts Checklist".
5. Connect the connector (signal, power) of the internal wiring harness to
the U-axis motor .
1
6. Mount the cover with the cross head APS bolts .
8
7. Replenish grease (VIGO Grease RE No.0) through the grease inlet.
8. Remove the backup battery.
9. Remove the chain block, etc. which support the U-arm.
10. Turn ON the DX100 power supply.
5-6
9
1
2
1
horizontally from the casing.
1
5
on the U-axis motor .
3
1
and the casing. Then, mount the U-axis
1
with the tightening torque shown in Table
2
9
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