MCZ AirSystem 70 DX - Manual (Page 36)

Chapter 6
INSTALLATION AND USE MANUAL
page
36
Maintenance and cleaning Technical service – MCZ S.p.A. all rights reserved - Reproduction prohibited
• Flue pipe with poor performance which does not allow fireplace
stove to reach high yield that results in adequate temperature of
the refractory material.
Never clean the refractory material with a damp cloth
or anything else, as it may be stained.
Use a dry paintbrush if necessary to remove heavy
soot build-up.
If the Alutec does not whiten, it is not to be
considered as a defect in light of the warnings and
instructions above.
6.1.4. Lubrication and routine maintenance of the
extensible guides
All of the doors of the fireplace stoves are mounted on extensible ball-
bearing guides that ensure a robust, sturdy system that provides silent
movement.
Prolonged use and the heat of the fireplace stove gradually depletes
the lubricant in the guides. This will cause them to become less efficient
and noisier.
If necessary, periodically grease both runners as follows:
• Completely raise the door of the fire box so as to see the lower
parts (tracks) of the two guides.
• Using the provided grease gun, apply two drops of grease,
about 5 mm in diameter, at the highest visible point of the
runners. Do not exceed the recommended amount!
• Perform this operation on both guides. Keep in mind that the
total amount of grease to be used is about 0.5 ml (see
graduated scale on grease gun).
After lubrication:
• Put the glue gun back and conserve it
• Lower and raise the door completely at least 6 or 7 times so
that the grease is spread onto all of the other components of
the guides to complete lubrication. You should notice a
substantial improvement in ease of movement and noise
reduction.
It is advisable to carry out this operation at the end of
the season of use, or whenever the runners become
too noisy.
Do not use other types of grease. If the grease gun
runs out, request an MCZ original replacement.
6.1.5. Maintenance of kit VF (if installed)
The maintenance of all electrical parts (fan, control
unit, etc.) must only be carried out with no electrical
power supplied and with the unit unplugged.
Figure 31 – Points to be greased with provided
grease gun