Maintenance & Troubleshooting - Quincy QSI-90 Instruction Manual

Section V - Servicing
Maintenance & Troubleshooting
WARNING!
UL Listed motors must only be serviced
by UL Approved Authorized Baldor
Service Centers if these motors are
to be returned to a hazardous and/or
explosive atmosphere.
General Inspection
Inspect the motor at regular intervals,
approximately every 500 hours of
operation or every 3 months, whichever
occurs fi rst. Keep the motor clean and the
ventilation openings clear. The following
steps should be performed at each
inspection:
WARNING!
Do not touch electrical connections
before you first ensure that power has
been disconnected. Electrical shock
can cause serious or fatal injury. Only
qualified personnel should attempt the
installation, operation and maintenance
of this equipment.
1. Check that the motor is clean. Check
that the interior and exterior of the
motor is free of dirt, oil, grease, water
etc. Oily vapor, paper pulp, textile
lint etc. can accumulate and block
motor ventilation. If the motor is not
properly ventilated, overheating can
occur and cause early motor failure.
NEMA / (IEC) Frame
Size
Up to 210 incl. (132)
Over 210 to 280 incl. (180)
Over 280 to 360 incl. (225)
Over 360 to 5800 incl. (300)
* Relubrication intervals are for ball bearings.
For vertically mounted motors and roller bearings, divide the relubrication interval by2
** See service Alert #370
36
Relubrication & Bearings
Bearing grease will lose its lubricating ability
over time, not suddenly. The lubricating
ability of a grease (over time) depends
primarily on the type of grease, the size of
the bearing, the speed at which the bearing
operates and the severity of the operating
conditions. Good results can be obtained if
the following recommendations are used in
your maintenance program.
Type of Grease - A high grade ball or
roller bearing grease should be used.
Recommended grease for standard service
conditions is Polyrex EM (Exxon Mobil).
Do not mix grease unless compatibility has
been checked and verifi ed.
Equivalent and compatible greases include:
Texaco Polystar, Rykon Premium #2,
Pennzoil Pen 2 Lube and Chevron SRi.
Relubrication Intervals - Recommended
relubrication intervals are shown in
Table . It is important to realize that the
recommended intervals of Table are based
on average use.
Relubrication Intervals*
10000 6000
** 2700 Hrs. 5500 Hrs.
** 3600 Hrs.
** * 2200 Hrs.
** * 2200 Hrs.
2. Use a "Megger" periodically
to ensure that the integrity of
the winding insulation hes been
maintained. Record the Megger
readings. Immediately investigate
any significant drop in insulation
resistance.
3. Check all electrical connectors to be
sure that they are tight.
Rated Speed - RPM
3600 1800
12000 Hrs. 18000 Hrs. 22000 Hrs.
9500 Hrs.
7400 Hrs.
3500 Hrs.
1200 900
15000 Hrs. 18000 Hrs.
12000 Hrs. 15000 Hrs.
7400 Hrs. 10500 Hrs.