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49. Changing the motor
Note:
The motor must be replaced as a complete unit.
Removal:
z Disconnect the machine lead cord
z Remove the detachable work support.
z Remove the housing covers as described in this manual.
z Remove the right-hand motor retaining screw 57 (fig. 113).
z Disconnect light plug 46.
z Remove the second motor retaining screw 56.
z Lift motor sprocket 58 out of toothed belt 59 and remove the motor to the front.
Refitting:
z Before refitting the motor, simulated leakage current must be measured (see section 58 of this
manual).
z Insert the motor and place motor sprocket 58 in toothed belt 59 (fig. 113).
z Install the sewing lamp wire at the motor and attach plug 46.
z Insert and slightly tighten top motor retaining screw 56.
z Insert and slightly tighten right motor retaining screw 57.
z Tension toothed belt 59 and firmly tighten the two screws.
z Refit the housing cover as described in this manual.
z Reconnect the mains plug and test run the machine.
z Carry out an electrical safety test in accordance with VDE 0701 using testing appliance ABB Metrawatt
M 5013.
