79
2016/01 Rev. 0.0
OptiFresh (Bean) NG 2.0
EN
Maintanance freshbrew group (continuation)
6.6.2 Replacing the T-Bar & Housing, Crank
Arm, Triple Cam, and the Brewer Arms
The following procedure will guide you through the
steps required to remove the T-bar (and its housing),
the crank arm, the triple cam, and the two wiper arms.
As these components are all mechanically linked
together, they will all be removed in this procedure.
Should you need to replace only one of these
components, follow this procedure until the point
where that particular component can be removed and
replaced.
1. Press down on the H-Frame and turn the T-bar
counter-clockwise until it can be removed from its
housing. This may require 20-30 full turns.
At this point in the procedure, the T-bar can be
completely removed and replaced.
2. Remove the coupling pin at the back of the brewer.
This pin is tapered and press-fit into the shaft - tap
the longer end of the pin with a hammer until it pops
out of the shaft. Once the pin is out, remove the
c-clip securing the crank arm shaft to the mainframe.
3. Remove the c-clip at the rear of the crank arm,
and then remove the crank arm pin.
4. Move the piston rod away from the front of the
crank arm. Place the brewer on the table with the
cylinder down and gently tap the crank arm shaft
with a hammer to unlock it from the triple cam -
these two components are press-fit together
5. Flip the brewer over (cylinder up) and pull the T-bar
housing until the housing and the triple cam can be
removed. It may be necessary to rock the
components back and forth to release them.
At this point in the procedure, the T-bar housing,
crank arm and triple cam can be completely
removed.
6. To remove the two brewer arms (the ‘wipe’ and
‘unwipe’ arms), remove the two c-clips securing
the arm pins to the mainframe, and then remove
the two pins at the rear of the brewer. It may be
necessary to push them from the front of the brewer
through to the rear.