Preventive Maintenance Edge/Edge Blanket
4-10
Check Setscrews
Perform only when the unit is OFF
with power disconnected.
Setscrews (Figure 4-12) hold sprockets,
bearings, and other rotating parts securely in
place. Check and make sure that all setscrews
are tight.
Clean and Lubricate Drive Chain
Clean off old lubricant from the drive chain
and lightly lubricate the chain with a good quality
SAE 90 grade oil. Check the drive chain for
proper tension. If the chain is worn and loose
replace it (Figure 4-13).
4.4 Semi-Annual PM
(1000 hours)
WARNING
Do not repair or correct any
of these conditions without
reading and understanding
the Repair chapter.
Only qualified personnel
should troubleshoot and
repair this unit.
Make sure the 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.
Figure 4-12: Make sure the setscrews are
sufficiently tightened.
Figure 4-13: Drive chain in the left endframe.
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