NBE 150644, Operation And Maintenance Manual

Page: 7 / 28

BTR-S
ERIES
O
PERATION
& M
AINTENANCE
M
ANUAL
12838 Stainless Drive, Holland, MI 49424 Phone: 616/399-5600 Fax 616/399-3084

Copyright 2018 BRAWN Mixer www.BRAWNMIXER.com Page 2 of 9
11/27/2018
CUSTOMER SERVICE, Cont.
We welcome your comments and suggestions
concerning any BRAWN Mixer product. Please direct
these comments in writing to the National Sales Manager
at BRAWN Mixer located in Holland, Michigan. To
expedite troubleshooting service, please make your initial
contact through your BRAWN Mixer Representative. If,
for whatever reason, your representative cannot be
reached and you have an emergency condition, please
call us directly at 616/399-5600 and ask for the
Customer Service Department.
Remember, you are backed by your BRAWN Mixer
Technical representative and the factory support team.
We are here to assist you; let us know how we can be of
help.
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.
2. All Brawn Mixers are shipped with the shaft and
impeller(s) disassembled from the drive assembly.
In addition, the clamp or cup mount and any
mounting hardware for portable mixers are shipped
loose.
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.
1. The mixer is shipped with two eyebolts located in the
mounting base. These should be used in
combination with the hole at the rear of the gear
drive for lifting of the mixer assembly
.
2. Install the mixer drive on the mounting structure and
secure with properly-sized, Grade 5 or better
hardware. Torque the hardware as recommended in
TABLE 1 .
3. Couple the mixer shaft to the gear drive output shaft
coupling and secure with the hardware provided.
Torque as recommended in
TABLE 1 . Refer to
precautions under the Shaft and Impeller
Assembly section.
4. Install impeller(s) on lower shaft (refer to
Shaft and
Impeller Assembly section).
TABLE 1: RECOMMEND TORQUE VALUES
HARDWARE
SIZE
TORQUE VALUES (FOOT POUNDS)
STANDARD GRADE 2
& 300 SERIES
STAINLESS
HIGH STRENGTH
GRADES 5 & 8
3/8-16 17 27
7/16-14 27 40
1/2-13 40 65
9/16-12 65 90
5/8-11 85 125
3/4-10 135 225
7/8-9 145 365
1-8 210 545
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.