7 Maintenance and repairs
66
R-220 Pro Continuous Operation Manual, Version A
Removal / installation of the vapor duct
With the flask seal removed, the (glass) vapor duct can easily be pulled out At reinstallation, the
keyway at the vapor duct end must be aligned to the spring loaded notch at the gearbox to lock rota-
tion between the drive and the duct
a
b
a
Remove the snap flange coupling and the flask seal first Pull out the vapor duct by hand
b
To install the vapor duct proceed in reverse order Make sure the notch blocks rotational
movement of the duct
NOTE
Clean the vapor duct before reinstallation to ensure a clean seal face for good tightness!