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

HP20D
6.3
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6 Disassembly and Reassembly of Speed Reducer

6.3 Disassembly and Reassembly of U-Axis Speed Reducer

Disassembly and Reassembly of U-Axis Speed Reducer
• Refer to Fig. 6-3 "Disassembly and Reassembly of U-Axis Speed
Reducer".
Disassembly
1. Turn OFF the DX100 power supply, then drain grease.
2. Before removing the U-arm unit, support the U-arm unit with a chain
block, etc. to prevent it from falling.
3. Remove the hexagon socket head cap screws . Then, remove the
U-arm unit from the L-arm.
4. Remove the U-axis motor from the U-arm unit.
(Perform "Disassembly" in section 5.3 "Disassembly and Reassembly
of U-Axis Motor".)
5. Remove the GT-SA bolts , then remove the speed reducer .
6. Remove the hexagon socket head cap screw , then remove the input
gear .
5
7. Remove the old sealing bond on the L-arm and the U-arm unit.
Reassembly
1. Mount the input gear
5
attached to the speed reducer . Thus, when replacing the speed
reducer , replace the input gear
1
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 6-3
4
"U-Axis Speed Reducer Parts Checklist".
3. Apply ThreeBond 1206C on the matching surface between the speed
reducer and the U-arm unit. Then, mount the speed reducer
1
the U-arm unit.
4. Tighten the GT-SA bolts
6-3 "U-Axis Speed Reducer Parts Checklist".
5. Mount the U-axis motor on the U-arm unit. (Perform "Reassembly" in
section 5.3 "Disassembly and Reassembly of U-Axis Motor".)
6. Apply ThreeBond 1206C on the matching surface between the speed
reducer and the L-arm. Then, mount the U-arm unit with the speed
1
reducer on the L-arm.
1
7. Tighten the hexagon socket head cap screws
torque shown in Table 6-3 "U-Axis Speed Reducer Parts Checklist".
For the screws marked with
parts of them before tightening them.
8. Replenish grease (VIGO Grease RE No.0) through the grease inlet.
9. Turn ON the DX100 power supply.
6-5
3
2
4
on the U-axis motor. (The input gear
1
too.)
5
with the tightening torque shown in Table
2
with the tightening
3
, apply ThreeBond 1206C on the thread
HW1480357
159281-1CD
1
is
5
on
1
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