YASKAWA Motoman GP50 - Disassembly and Reassembly of the B-Axis Speed Reducer

6 Disassembly and Reassembly of the Speed Reducer
6.5 Disassembly and Reassembly of the B-Axis Speed Reducer
6-15
HW1484673
HW1484673
6.5 Disassembly and Reassembly of the B-Axis Speed
Reducer
• Refer to fig. 6-5(a) “Disassembly and Reassembly of the B-Axis
Speed Reducer” .
 Disassembly
1. Turn OFF the power supply of the YRC1000 with the flange surface of
the tip of the manipulator pointing down.
2. Unscrew the hexagon socket head cap screws and , and then
remove the flange . If the flange surface of the tip of the manipulator
cannot be pointed down, the B-axis will rotate when the hexagon
socket head cap screws and are removed. Fix the B-axis so
that it will not rotate before removing the hexagon socket head cap
screws and .
3. Unscrew the hexagon socket head cap screws , and then remove
the speed reducer . Be careful as grease will come out.
4. Unscrew the hexagon socket head cap screws , and then remove
the gear and shim from the speed reducer .
 Reassembly
1. Mount the gear and shim on the speed reducer , and then tighten
the hexagon socket head cap screws with the tightening torque
shown in table 6-5. (Refer to fig. 6-5(b) “Adjustment of B-Axis Gear
Part Shim” .)
2. Apply ThreeBond 1206C to the contact surface of the speed reducer
and the wrist unit, and then mount the speed reducer on the
wrist unit. For the place to apply sealing bond, refer to fig. 6-5(c)
“Surface to Apply Sealing Bond on the B-Axis Speed Reducer” .
3. Tighten the hexagon socket head cap screws with the tightening
torque shown in table 6-5 “B-Axis Speed Reducer Parts Checklist” .
4. Apply ThreeBond 1206C to the contact surface of the speed reducer
and the flange , and then mount the flange on the speed
reducer . For the place to apply sealing bond, refer to fig. 6-5(c).
5. Tighten the hexagon socket head cap screws with the tightening
torque shown in table 6-5.
6. Tighten the hexagon socket head cap screws with the tightening
torque shown in table 6-5.
7. Replenish grease (Molywhite RE No.00) from the grease inlet. Mount
the hexagon socket head plugs at grease inlets and the grease
exhaust ports after the replenishment of grease. (Refer to
chapter 4.1.2 “Grease Exchange Procedure” (B-axis, T-axis, and
gears).)
8. Turn ON the power supply of the YRC1000.
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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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