Lexmark 4069-XXX 用户手册
![Lexmark](https://files.manualsbrain.com/attachments/878cae5fca737841ce37f41a7ee73881a8b54f60/common/fit/150/50/823435a5b9c868f91a4b7f8b99ddfd9b9c699edf1f6ff104003e82a92d7f/brand_logo.png)
4-2
Service Manual
4069-XXX
Adjustment Procedures
Duplex Motor Drive Belts
Do the duplex motor belt and drive belt adjustment whenever you
remove or replace the duplex motor or loosen the motor or drive belt
idler pulley.
remove or replace the duplex motor or loosen the motor or drive belt
idler pulley.
Service Tip: Excessive belt tension can result in stalling the duplex
motor. Too little belt tension can result in belt slippage.
motor. Too little belt tension can result in belt slippage.
To do the duplex drive belt adjustment:
to access the drive belt idler pulley.
2. Loosen the idler pulley mounting screw and position the idler to
provide 3 mm (±.5 mm) drive belt deflection.
3. Tighten the idler pulley mounting screw being careful to
maintain the adjustment.
4. Reassemble the duplex unit.
To do the duplex motor belt adjustment:
to
access the motor mounting screws but do not remove the motor.
2. Loosen the screw in the elongated adjustment slot and position
the motor to provide 3 mm (±.5 mm) motor belt deflection.
3. Tighten both mounting screws being careful to maintain the
adjustment.
4. Reassemble the duplex unit.