Flameproof motors | 45
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8.2.9. AUTOMATIC LUBRICATION
When requested, bearing regreasing intervals can
be extended using automatic lubricators. These
shall be mounted near the bearing itself to
automatically provide the grease substitution. They
are certified to be used in hazardous areas
(ATEX/IECEx approvals for Gas, Dust and Mines)
with respect to motor ambient temperatures.
Automatic lubricators must be activated at start-up
according to the following instructions:
Check in lubrication nameplates for each
bearing housing the time setting for each
lubricator for drive-end and non-drive-end
sides;
Activate each lubricator accordingly.
8.2.9.1 REFILLING/REPLACING
LUBRICATORS
For the purpose of replacing or refilling lubricators
after the end of lubrication interval as indicated in
nameplates in motor the following steps must be
followed:
Check in lubricator or lubricator manual if the
supplied model allows refilling;
If refilling is allowed:
a.
Follow lubricator manual instructions
to refill lubricator with the same
grease or with a compatible one;
b.
Check lubricator manual for the need
of replacing batteries if applicable;
c.
Check in lubrication nameplates for
each bearing housing the time setting
for each lubricator for drive-end and
non-drive-end sides;
d.
Activate each lubricator accordingly.
If refilling is not allowed:
a.
Remove lubricator;
b.
Install new lubricator filled with the
same grease or with a compatible
one;
c.
Check in lubrication nameplates for
each bearing housing the time setting
for each lubricator for drive-end and
non-drive-end sides;
d.
Activate each lubricator accordingly.
8.2.9.2 PROLONGED STORAGE
In the event of need of disassemble and clean of
bearings according to defined in Table 3-4 and
Table 3-5, the following steps must be followed
regarding automatic lubricators after disassemble
of bearing:
Remove the grease relief cover, if any;
Clean the area around the grease fitting
using a clean cotton fabric;
Completely fill up the grease feeding line to
bearing by pumping (with the same grease
contained in the unit);
Check for validity date in lubricators, replace
or follow lubricator manual instructions if
needed;
Assemble the bearings;
Check in lubrication nameplates for each
bearing housing the time setting for each
lubricator for drive-end and non-drive-end
sides;
Activate each lubricator accordingly.
ATTENTION
Effective emptying time must not
exceed 12 months.
ATTENTION
Maximum storage time lasts for 2
years from the production date printed
on the lubricator.
Recommended storage temperature is
20 °C.
Figure 8-3 - Automatic lubricator