Royal Sovereign RSC-5500H Service Manual page 12

Chain-A
Special Chain-link
Chain-B
c. Take out 6 Hexa-bolt located on the Frame-L and disassemble the Motor-system
Hexa-Bolt
c.Remove the motor and replace it with a new one.
c. Follow the reverse order to assmble the Motor.
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3.2.2 Replacing The Motor controller