YASKAWA MOTOMAN-PH130F Maintenance Manual

Contents

6 Disassembly and Reassembly of the Motors6.1 Disassembly and Reassembly of the S-Axis Motor6-2HW1485471HW14854716.1 Disassembly and Reassembly of the S-Axis Motor• Refer to fig. 6-2(a) “Disassembly and Reassembly of the S-AxisMotor” . Disassembly1. Turn OFF the power supply of the YRC1000.2. Remove the encoder connector of the S-axis motor (fixing bolt:pan-head screw M2), and then disconnect the encoder cable.3. Turn the connector on the cable side of the power connector for the S-axis motor , and then disconnect the power cable. If the connectordoes not turn, remove the connector by holding the connector on thecable side with a pair of plastic pliers, etc.4. Unscrew the hexagon socket head cap screws , and insert studbolts M6 (length: 50 mm or more) into the tapped hole M6 (4 places)on the motor flange face. Screw the stud bolts so that the clearancebetween the motor and the contact surface is 30 mm or more, roughly.5. Mount eyebolts (2 bolts) on the thread parts M8 of the motor, and thenremove the S-axis motor from the S-head vertically by using theeyebolts.6. Unscrew the hexagon socket head cap screw , and then removethe gear , fly wheel , and key . Reassembly1. Mount the key on the S-axis motor . (The key is providedwith the S-axis motor .)2. Apply ThreeBond 1206C to the contact surface of the S-axis motor, gear , and fly wheel , and then mount the gear and flywheel on the S-axis motor .For the place to apply sealing bond, refer to fig. 6-2(c) “Surface toApply Sealing Bond on the S-Axis Gear” and fig. 6-2(d) “Surface toApply Sealing Bond on the S-Axis Flywheel” .3. Apply LOCTITE 243 to the thread part of the hexagon socket head capscrew , and then tighten it with the tightening torque shown intable 6-1 “S-Axis Motor Parts Checklist” .4. Apply ThreeBond 1206C to the contact surface (2 places) of the S-axismotor and the S-head, and then mount the S-axis motor on theS-head.For the place to apply sealing bond, refer to fig. 6-2(b) “Surface toApply Sealing Bond on the S-Axis Motor” .5. Tighten the hexagon socket head cap screws with the tighteningtorque shown in table 6-1.6. Connect the encoder cable to the S-axis motor , and then tightenthe connector fixing bolt (pan-head screw M2) with a tightening torqueof 0.2 N•m. (The connector fixing bolt is provided with the connector.)NOTE For removing/applying of sealing bond and assembling afterapplying sealing bond, refer to chapter 5.2 “Removing,Applying, Assembling of Sealing Bond” .1121513 6 44 1 411 3 6 36 151 12145/134