Maintenance And Cleaning - Mestra R-080500 Manual De Instrucciones

CHANGING THE EXHAUSTER FILTERS
The R-080500 has a closed exhauster circuit which picks up the particles of dust produced during polishing in
two filters inside the machine. When these filters are dirty the machine works less efficiently and the exhauster
motor noise level increases. If this occurs, change the filter as soon as possible:
1. Disconnect the machine from the power supply and remove the dust guard (A).
2. Inside the machine you will find two square caste aluminium covers with handless. These are not attached to
the polisher casing, and can be lifted directly.
3. Hanging from the bottom or each cover is a filter, attached to it by a clamp. Release this with a screwdriver.
4. Remove the dirty filter and fit a clean one. Talleres Mestraitua, S.L. recommends Mestra spares, as only they
can ensure optimum performance and reliability.
5. Check that the filter mouth fits correctly onto the circular mouth of the cover, without creases, gaps or points
through which air could leak. Then tighten the attachment clamp.
6. Re-mount the covers with the new filters in their original places. There are two centring lugs on the cover to
indicate correct position and fit. Also check that the foam seals around the edge of the covers are seated
perfectly on the supporting surface so that there are no air leaks.
7. Fit the dust guard (A) and the machine is ready for use.
One side of the machine may be used more than the other, and there are separate filters for the left and right
sides. This means that sometimes only one filter may need replacing. Check filters regularly for clogging and
change them as necessary.
Do not try to clean dirty filters: always fit new ones. Emptying the dust bag is not advisable, as particles of dirt
will remain trapped in the filtering fabric. Filters which have been "cleaned" in this way considerably reduce
exhauster performance.

MAINTENANCE AND CLEANING

To ensure correct, reliable, long-lasting operation of the unit we recommend the following:
• Clean the dust off the inside of the protective screen with a brush after each use. Also clean the surface of the
front tray.
• Regularly clean the screens thoroughly. Also clean the stainless steel outer casing of the polisher with a rag
moistened in soapy water.
• Use a rag moistened in soapy water also to clean the motor and support. Never use alcohol, solvents or other
inflammable liquids.
• Replace the exhauster filter when it becomes dirty. Dirty filters are indicated by a drop in exhauster
performance and the appearance at times of an anomalous noise on starting up the exhauster. Replace filters
as indicated above.
• The unit has a protective system to prevent sudden start-ups. If the electrical power supply to the polisher
motor is cut off it stops, but when power is restored the machine might start up unexpectedly and anyone
manipulating the motor shafts at the time might suffer injury. To prevent this Talleres Mestraitua, S.L. has
fitted the R-080500 with an automatic switch which turns it off in case of a power failure. If this happens
during operation the device will have to be reset before work can continue. Do this as follows:
1. Switch off the unit via switch (B).
2. Raise the top dust guard (A).
3. Locate the automatic off switch (between switches (B) and (C) ).
4. Reset the automatic off switch by pressing it.
5. Fit the dust guard (A).
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