YASKAWA MOTOMAN-PH130F, Maintenance Manual

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7 Disassembly and Reassembly of the Speed Reducers
7.2 Disassembly and Reassembly of L-Axis Speed Reducer
7-5
HW1485471
HW1485471
7.2 Disassembly and Reassembly of L-Axis Speed Reducer
• Refer to fig. 7-2(a) “Disassembly and Reassembly of the L-Axis
Speed Reducer” .
 Disassembly
1. Turn OFF the power supply of the YRC1000.
2. Support and fix the L-arm and the upper part of the manipulator to
keep the L-arm from falling off or rotating.
3. Remove the balancer. (Refer to chapter 10 “Disassembly and
Reassembly of Balancer Unit” .)
4. Remove the L-axis motor . (Refer to chapter 6.2 “Disassembly and
Reassembly of the L-Axis Motor” .)
5. Unscrew the hexagon socket head cap screws , and insert the stud
bolt M10 (length: 40 mm or more) into the tapped hole M10 (2 places)
on the L-arm
. Screw the stud bolt into the tapped hole until
clearance is made between the contact surface of the L-arm and
the speed reducer .
6. Remove the L-arm from the speed reducer .
7. Unscrew the hexagon socket head cap screws , and insert the stud
bolt M8 (length: 35 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 S-head and
the speed reducer
.
8. Mount the eyebolts diagonally on the tapped hole M16 (2 places) on
the speed reducer . Remove the speed reducer horizontally by
using the eyebolts. At this time, remove the O-ring .
NOTE
Refer to chapter 10 “Disassembly and Reassembly of Bal-
ancer Unit” .
DANGER
When removing the balancer, confirm that the L-arm is firmly fixed with
the chain block, etc.
Failure to observe this caution may cause a hazardous condition due to
rotating the L-arm.
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