Replacing The Brake Of The Ribbon Supply Hub - CAB MACH4 Service Manual

 Replacing Assembly Units
14
.9

Replacing the Brake of the Ribbon Supply Hub

Fig. 8
1 Ribbon supply hub
2 Cover
3 Three screws
4 Brake
1. Hinge up the printhead assembly, unscrew the three screws (3), and remove the cover (2).
2. For easier handling:
- Ensure that the hub (1) is attached.
- Press the holder (6) of the friction coupling inwards, turn it into the position 1 and release. Ensure that the
locking lugs have been fully inserted into the recesses of the holder.
3. Grip the hub (1) that the axle cannot rotate, press the holder (6) of the friction coupling inwards and turn the lock
washer (7) counterclockwise using the tool (5) until it is released, then take it off.
4. Take off the several elements of the brake and mount the new parts in reverse order.
5. Grip the hub (1) that the axle cannot rotate, press the lock washer (7) in and turn it until it clicks into place
noticeable.
Notice!
i
Ensure that the markings of the lock washer () are outside.
6. Turn the holder (6) back to it's original position, measure the winding torque
necessary
7. Re-attach the cover (2) with the three screws (3).
Replacing the coupling brake of the ribbon supply hub
( 3.2 on page 20).
5 Coupling mounting tool
6 Holder
7 Lock washer
( 3.1 on page
14
19) and correct if