Maintenance - Brawn BGM33 Operation And Maintenance Manual

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3389 ~ 128 Avenue Holland, MI 49424

MAINTENANCE

Mixers operating in wet environments or exposed to
washdown should be considered severe applications.
Under these conditions water, condensation and
cleaning chemicals may accumulate in the motor or,
from the other end, be blasted under high pressure past
the mixer driveshaft oil seal. Water in the motor may
eventually leak through the motor bearing and into the
gearbox thus contaminating and increasing the volume
of oil. This in turn can cause the gearbox output shaft
seal to fail and leak oil into the mixer housing. Oil in the
mixer housing will eventually find its way through the
bearings and the mixer driveshaft seal and ultimately into
the product being mixed.
To prolong the life of your mixer for these applications, a
preventive maintenance program should be established
and adhered to. The frequency of preventive
maintenance inspections are unique to every application
and must therefore be determined through experience.
Initially, one month intervals are suggested.
The following steps are recommended as part of a
preventive maintenance program:
1. Periodically remove the oil fill plug from the
gearbox (with motor shut off and locked out) and
check the oil level as described under the
heading of LUBRICATION. Also check for the
presence of water in the oil. If water is detected
or if the oil level appears low, proceed with the
following steps.
2. Remove a motor condensation drain plug from
the lowest elevation on the motor and the
conduit box cover to check for water. If present,
separate the motor from the gearbox and inspect
for evidence of water in the motor adapter. If
water exists, the motor should be disassembled
to inspect for water damage to the windings and
bearings.
3. Separate the gearbox from the mixer housing
and inspect the inside of the housing and around
the gearbox output shaft for evidence of leakage.
The inside of the mixer housing should appear
dry.
4. Separate the mixer housing from the mixer
mount and inspect for the presence of water or
oil.
If water has been detected in the motor, the bearings
and seals should be replaced after drying out the motor.
Copyright 2015 BRAWN Mixer, Inc.
BGM-S O
ERIES
www.BRAWNMIXER.com
8/6/2015
& M
PERATION
Phone: 616/399-5600 Fax 616/399-3084
If water is detected in the gearbox motor adapter and the
oil level is not excessively low, drain the remaining oil
and flush with light oil or kerosene, install new oil seals
and refill with fresh oil.
If any oil has accumulated in the mixer housing, it is the
result of leakage past the gearbox output shaft seal and
will ultimately leak through the bearings. The source of
the problem must first be remedied and then the mixer
driveshaft bearings and oil seal should be replaced after
thoroughly cleaning the inside of the housing.
When reassembling the mixer, replace the o-ring seals in
the mixer housing and apply a sealant, such as silicone
or "Permatex", around the face of the motor flange,
inside of the mounting bolt circle. Apply an anti-seize
compound on the motor shaft and reassemble the motor
to the gearbox. Check the motor to be sure all openings
are plugged and that the conduit box gaskets are in good
condition.
GEARBOX OIL PLUG LOCATIONS
M
AINTENANCE ANUAL
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