BWG-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 11
11/27/
2018
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.
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. 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
.
2.
Install mixer shaft and impeller(s) (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.
SHAFT & IMPELLER ASSEMBLY
If an optional rigid shaft coupling is furnished, connect
the mixer shaft and rigid driveshaft couplings by carefully
engaging the shaft rabbeted faces and installing the
mounting hardware. Be careful not to damage the
coupling faces or rabbets, as this can cause excessive
shaft run-out that will affect the life of the mixer
Proper hollow output shaft installation is shown in
FIGURE 1, PAGE 3
.
1. Inspect the shaft surface for evidence of damage
and repair, if required, before installing the shaft into
hollow output shaft or connecting to flanged
coupling.
2. Attach the shaft collar (Item 5) to the mixer shaft
(Item 4).
3. Place the key (Item 7) on the mixer shaft and slide
the mixer shaft into the hollow output shaft on the
gear drive (Item 1).
Summary of Contents for BRAWN MIXER BWG Series
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