Comet Executive Gas Preventive Maintenance
4-13
4.3 Monthly PM
(200 Hours)
WARNING
Do not repair or correct any
of these conditions without
reading and understanding
the Repair chapter.
Only qualied personnel
should troubleshoot and
repair this unit.
Make sure the unit is
completely cooled down and
power is turned OFF at the
main disconnect switch.
Follow lockout/tagout
procedures approved for
your site. Follow local
regulations. Failure to do so
could result in serious injury.
Check Setscrews
Setscrews are used to secure sprockets,
bearings, pulleys, and other rotating parts.
Required Tools
Allen wrench set
Perform only when the unit is OFF
with power disconnected and COOL.
1. Turn power OFF at the main disconnect
switch.
2. Open both endframe doors.
3. Make sure all setscrews are correctly
tightened.
NOTE: To allow for heat
expansion, bearings in the left
endframe (Figure 4-9) do not have
setscrews. Do NOT put setscrews
into these bearings. However, if
there are any shaft collars, these
do have setscrews that must be
secured.
4. Close and secure both endframe doors.
WARNING
Never operate the unit unless
all safety covers are in place
and all safety equipment is
working correctly.
Figure 4-9: Do NOT put setscrews into left
endframe bearings.
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