Takeup Unit Parts - Intermec EasyCoder PF2i Service Manual

Chapter 8—Liner Takeup Unit

8.2 Takeup Unit Parts

EasyCoder PF2i
EasyCoder PF4i and
PF4i Compact Industrial
Pulley
Bearing
110
The liner takeup unit consists of the following parts:
• Timing belt pulley (with fl ange and bearing)
• Hub (with spring clutch, bearing, and brace)
• Shaft
The differece between EasyCoder PF2i and PF4i/PF4i Compact Industrial
is that in EasyCoder PF2i the hub is shorter and the brace does not have a
return spring but must be operated manually both ways.
Bearing
Spring clutch
The threaded shaft is screwed into the center section. The timing belt
pulley is fi tted on the shaft and the timing belt is fi tted around the pulley.
The spring brake is mounted inside the bobbin and fi ts around the outer
end of the pulley. It provides the necessary friction to keep the liner tight
without pulling it too hard.
The brace collapses when being pulled out. The plastic spring inside the
brace returns and expands the brace when it is released (EasyCoder PF4i
and PF4i Compact Industrial only). Thus, the wound up liner can easily
be removed at media replenishment.
The bobbin is held on the shaft by a snap-lock of the same type as the
ribbon supply and rewind hubs (see Chapters 6.2 and 6.3).
When no rewind unit is fi tted, the recess in the center section is covered
by a circular cover plate, which can be removed using a #T20 Torx screw-
driver.
Intermec EasyCoder PF2i, PF4i, and PF4i Compact Industrial—Service Manual
Return spring
Shaft
Hub
Brace