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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