Brawn BGMF100, Operation And Maintenance Manual

Page: 11 / 26

BGMFSB-S
ERIES
O
PERATION
& M
AINTENANCE
M
ANUAL
3389 ~ 128
th
Avenue Holland, MI 49424 Phone: 616/399-5600 Fax 616/399-3084

Copyright 2015 BRAWN Mixer, Inc. www.BRAWNMIXER.com Page 3 of 11
8 /6/2015
1. For liquid levels 0.5 to 1.1 times the tank diameter, a
single impeller is suitable.
2. For liquid levels 1.1 to 1.6 times the tank diameter,
use dual impellers.
3. Impellers may be located from 0.5 to 2.0 impeller
diameters off the tank bottom, with one diameter off
bottom being optimum.
4. When dual impellers are necessary, spacing
between impellers should be approximately two
impeller diameters with gear drives, and four to five
impeller diameters with direct drive mixers.
5. For maximum turnover of liquid, mixer position in
tank should be as shown in the “BD & BGM ANSI
FLANGE MOUNT” drawing (FILE NO. SDB101C).
START UP
1. All units are lubricated before shipment. The
breather is plugged for shipment. The lubricant level
should be checked with the unit mounted in its
correct operating position. Lubricant should be
added or removed to bring it to the correct level.
2. Check all bolts and fasteners for tightness. It is good
maintenance practice to recheck all bolts after two
weeks of operation and periodically thereafter. Refer
to
TABLE 1 for recommended torque values.
3. Do not attempt to start mixer with impellers buried in
solids or solidified liquids.
ELECTRIC MOTORS
This equipment contains HAZARDOUS VOLTAGES,
ROTATING PARTS AND HOT SURFACES. SEVERE
PERSONAL INJURY OR PROPERTY DAMAGE CAN
RESULT IF SAFETY INSTRUCTIONS ARE NOT
FOLLOWED. Only qualified personnel should work on or
around this equipment after becoming thoroughly familiar
with all warnings, safety notices, and maintenance
procedures contained herein. The successful and safe
operation of this equipment is dependant upon proper
handling, installation, operation and maintenance.
WARNING
Explosion-proof motors-these motors are constructed to
comply with the U.L. Label Service Procedure Manual.
When repairing and reassembling a motor that has an
underwriter’s label, it is imperative that the unit be
reinspected and:
1. All original fits and tolerance be maintained.
2. All plugs and hardware be securely fastened.
3. Any parts replacements, including hardware, be
accurate duplicates of the originals.
Repair work on explosion-proof motors can only be done
by the original manufacturing or U.L. certified shops.
Violations of any of the above items will invalidate the
significance of the U.L. Label.
STORAGE
Motors must be stored in a clean, dry, well ventilated
location free from vibration and rapid or wide
temperature variations. If the unit is to be stored longer
than three months, consult factory. Ball bearing motors
are shipped from the factory properly lubricated and
ready to operate. When in storage, the motor shaft must
be turned several rotations every month and bearings
relubricated every year. On non-explosion-proof TEFC
motors, a removable plug in the bottom of the frame or
housing permits removal of accumulated moisture. Drain
regularly if storage atmosphere results in formation of
condensation.
INSTALLATION
Installation must be handled by qualified service or
maintenance personal.
ELECTRIC MOTORS, Continued
OPERATION