Torque Limiter (Ribbon Wind-Up Unit) Replacement - SATO CG412DT Service Manual

Section 7: Replacement Procedures

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.
Page 7-16
Torque limiter
assembly
Felt plate
Torque limiter
plate A
Torque limiter
Torque limiter
plate B
spring
CG4 Series Service Manual
Clutch gear
Torque limiter
washer
Washer
Screw