SATO CG4 Series - Torque Limiter (Ribbon Wind-Up Unit) Replacement

Section 7: Replacement Procedures
Page 7-16
CG4 Series Service Manual
7.12 TORQUE LIMITER (RIBBON WIND-UP UNIT) REPLACEMENT
(Only for CG408 TT and CG412 TT Thermal transfer printer)
1.
Remove the Frame cover of the Ribbon unit as mentioned
in
Section 7.10 Ribbon End Sensor Replacement above.
Follow step 1 to 4 to remove the
Frame cover.
2. Remove the screw (circled) securing the Clutch gear and
the
Torque Limiter assembly. Remove these parts and set
aside.
3. Disassemble the Torque Limiter assembly to replace the
defective internal parts.
Remove the
screw and carefully take the parts apart. The
Torque limiter spring and the Felt plate may need
replacement.
4. After replacement, follow the above steps in reverse
sequence, to reassemble the parts.
Note:
When reassemble the Torque limiter assembly, be careful
on the sequence of the parts. Ensure the orientation of the
washer
that the shear-drooped side goes to the spring side.
Torque limiter
assembly
Clutch gear
Torque limiter
plate A
Felt plate
Washer
Screw
Torque limiter
plate B
Torque limiter
washer
Torque limiter
spring