Brawn BGMF100, Operation And Maintenance Manual

Page: 10 / 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 2 of 11
8 /6/2015
INITIAL INSPECTION
1. Upon receipt of your Brawn Mixer, check for possible
shipping damage. Report any damage immediately
to the carrier and to Brawn Mixer, Inc.
2. All Brawn Mixers are shipped with the shaft and
impeller(s) disassembled from the drive assembly.
3. Storage: Mixers should not be stored near vibrating
machinery to avoid damage to the bearings. Store
mixers as packaged by the factory. For longer
storage periods, consult factory. If electric motors
have been subjected to humid conditions, check the
insulation resistance between phase and mass and
between the different phases. The resistance should
not be less than 100 megohms. If the resistance is
less, please consult the factory. If mixer is stored for
more than a year, the condition of the gear lubricant
should be checked before the mixer is put in
operation (see lubrication instructions).
INSTALLATION
[REFER TO ASSEMBLY / DIMENSION DRAWING]
Refer to the mixer installation / assembly drawing for
important mounting structure design, assembly,
mounting and dimensional data.
Model BGMF Low Pressure or Standard Pressure
Stuffing Box portable mixers are designed to be installed
on a tank nozzle. The standard mounting flange is of
ANSI 150# bolt and gasket dimensions. Other mountings
are optionally available.
The mixer is shipped ready for installation on the tank.
1. Before installing the mixer, place a flange gasket of
suitable composition (compatible with tank contents)
on the tank mixer mounting nozzle.
2. If mixer was shipped with impeller installed, remove
it and carefully insert the mixer shaft through the
tank nozzle.
3. Align the mixer flange bolt holes with the gasket and
tank flange holes and install and tighten the
mounting hardware (not provided by BRAWN).
4. Before disconnecting the handling equipment from
the mixer, adjust the outboard support legs to evenly
distribute the mixer weight. Anchor the supports
rigidly in place.
5. From inside the tank, install the impeller on the mixer
shaft with the mounting components provided with
the mixer.
6. Wire the mixer motor in accordance with the
nameplate wiring diagram and with local and national
electric codes. Before starting the mixer, jog the
motor to check for proper mixer shaft rotation.
Rotation should be clockwise as viewed from the
drive end of mixer. If rotation is incorrect, reverse
any two of the three power supply leads from the
motor starter to obtain proper rotation.
To avoid any problems resulting from a lubricant that is
not compatible with the product, we have not lubricated
the seven-ring box. Before starting the mixer, the
stuffing box must be lubricated with a high-quality
lubricant that is compatible with the product and suitable
for the service conditions. (Refer to the Sections on
LUBRCATION and SEATING THE PACKING.) The two-
ring box is not designed to be regreasable; therefore, no
further lubrication is required.
TABLE 1: RECOMMEND TORQUE VALUES
HARDWARE
SIZE
TORQUE VALUES (FOOT POUNDS)
STANDARD GRADE 2
& 300 SERIES
STAINLESS
HIGH STRENGTH
GRADES 5 & 8
5/16 9 13
3/8-16 17 27
1/2-13 40 65
5/8-11 85 125
3/4-10 135 225
BOLT-TIGHTENING RECOMMENDATIONS:
Inadequately or improperly tightened hardware can
loosen, due to vibration during mixer operation. This can
result in reduced mixer life or damage to equipment.
Recommended torque values for tightening all in-tank
and mounting hardware are listed in
TABLE 1 . These
average torque values should be considered only as a
guide and not as absolute values.
The following guidelines are based on mixing in vertical
cylindrical tanks with flat, dished, or shallow cone
bottoms. Mixer installations may vary with tank shape,
retention times, starting conditions and other
requirements.
INSTALLATION, Continued