SECTION 4. DISASSEMBLY AND SERVICE
c.INSPECTION
SPEED VARIABLE STEPPER MOTOR
Measure resistance between ends of stepper motor socket
2’s diagonal, resistance value should be 50±1Ω,if it is
exceeded, replace the stepper motor.
Rotate stepper motor’s central shaft when the motor’s power
is on, the shaft should not be stuck or has play, if so, replace
the motor.
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