YASKAWA MOTOMAN-PH130F - Disassembly and Reassembly of R-Axis Speed Reducer

7 Disassembly and Reassembly of the Speed Reducers
7.4 Disassembly and Reassembly of R-Axis Speed Reducer
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7.4 Disassembly and Reassembly of R-Axis Speed Reducer
• Refer to fig. 7-4(a) “Disassembly and Reassembly of the R-Axis
Speed Reducer” .
 Disassembly
1. Turn OFF the power supply of the YRC1000.
2. Remove the wrist unit from the speed reducer . (Refer to
chapter 8 “Disassembly and Reassembly of Wrist Unit” .)
3. Unscrew the hexagon socket head cap screws , and insert the stud
bolt M8 (length: 110 mm or more) into the tapped hole M8 (2 places)
on the speed reducer . Screw the stud bolt into the tapped hole
until the clearance is made between the contact surface of the U-arm
and the speed reducer .
4. Remove the speed reducer from the U-arm .
 Reassembly
1. Apply ThreeBond 1206C to the contact surface of the U-arm and
the speed reducer . For the place to apply sealing bond, refer to
“U-arm side” in fig. 7-4(b) “Surface to Apply Sealing Bond on the R-
Axis Speed Reducer” .
2. Mount the U-arm on the speed reducer , and then tighten the
hexagon socket head cap screws with the tightening torque shown
in table 7-4 “R-Axis Speed Reducer Parts Checklist” .
3. Apply ThreeBond 1206C to the contact surface of the wrist unit
and the speed reducer . For the place to apply sealing bond, refer
to “Wrist base side” in fig. 7-4(b).
4. Mount the O-ring on the wrist unit , and then mount the wrist
unit on the speed reducer .
Refer to chapter 8 “Disassembly and Reassembly of Wrist Unit” . Be
careful that the O-ring does not get caught between the speed
reducer and the wrist unit .
5. Tighten the hexagon socket head cap screws with the tightening
torque shown in table 7-4.
6. Remove the hexagon socket head plugs from the grease inlet and the
grease exhaust port, and then replenish grease (Molywhite RE No.00)
from the grease inlet.
Tighten the hexagon socket head plugs on the grease inlet and the
grease exhaust port after the replenishment of grease. (Refer to
chapter 5.1.2 “Grease Exchange Procedure” (R-axis).)
7. Turn ON the power supply of the YRC1000.
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NOTE
For removing/applying of sealing bond and assembling after
applying sealing bond, refer to chapter 5.2 “Removing,
Applying, Assembling of Sealing Bond” .
NOTE
If grease is filled before the sealing bond is solidified, it may
cause grease to leak.
After tightening the screws, leave it 30 minutes or more, and
then fill with grease.
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