Metalfab Hindon-Invicta L Series - Manual (Page 13)

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2) If motor starter heaters are correctly sized but motor starter circuit overloads and trips (and supply
voltage is correct), then check:
a) The vibrator mounting bolts and ensure they are properly torqued. Refer to Table 2.
b) The vibrator mounting beam and other vibrated mass structures to ensure that they
are not flexing, bending or cracked. This can lead to resonant vibrations and cause
vibrator "overloading".
c) That the vibrating equipment is free to vibrate, (i.e., support springs in working order,
no chutes touching or welded to live frame). This will cause vibrator overloading
and "off" motion.
3) Refer to section 6.1.2.
6.3 Vibrator current consumption is in excess of Table A-1 ratings
1) See section 6.2, steps 2a), 2b) and 2c), if not correct:
2) Verify that vibrator centrifugal force output is adequate for the application. This is
particularly important on bin vibrator applications.
3) Reduce vibrator centrifugal force setting to reduce current consumption.
4) Has vibrator been over-lubricated? See SECTION 5.2 - Bearing Lubrication for the proper
lubrication procedure.
6.4 Vibrator surface temperature is excessive
Important: Please note that this is a vibrating machine which does operate at higher surface
temperatures than standard industrial electric motors. If vibrator surface temperature is in excess of
185° F.
1) Record ambient temperature and advise Hindon (external fan cooling may be needed to cool
the vibrator and reduce the risk of failure).
a) Verify section 6.3. steps 1 thru 4.
b) Check that rotor shaft turns freely by hand and bearings are not binding. CAUTION:
Always ensure electrical power is de-energized prior to handling rotor shaft with
hands.