NBE Brawn mixer BTO Series, Руководство по эксплуатации и обслуживанию

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BTO-S
ERIES
O
PERATION
& M
AINTENANCE
M
ANUAL
12838 Stainless Drive, Holland, MI 49424 Phone: 616/399-5600 Fax 616/399-3084
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Copyright 2018 BRAWN Mixer www.BRAWNMIXER.com Page 7 of 9
11/27/2018
MAINTENANCE / LUBRICATION,
Cont.
All reducers are shipped from the factory properly filled
with lubricant, and all plugs are installed according to the
mounting position given on the reducer nametag.
Acceptable oil level is within ½ inch of the bottom of the
fill plug threads. Consult the sticker adjacent to the fill
plug to determine the type of lubricant installed at the
factory. Standard lubricant is ISO VG220 mineral-based
oil. However, some units have special lubricants
designed to operate in certain environments or to extend
the service life of the lubricant. If in doubt about which
lubricant is needed, contact Brawn.
TABLES 2 and 3
offer suggestions on the viscosity and
manufacturers of recommended lubricants.
CAUTION
In the Food and Drug Industry (including animal food),
consult the lubrication supplier for recommendation of
lubricants which are acceptable to the Food and Drug
Administration and/or other authoritative bodies having
jurisdiction. Factory supplied oil is not suitable for these
applications or this industry.
CASE SIZE OIL CAPACITY
2 2.1
3 4.3
4 5.7
5 9.3
TABLE 2: APPROXIMATE OIL
CAPACITY (QTS.) FOR GEAR DRIVES
AUTOVENT PLUG: The Autovent plug (FIGURE 3) is
brass in color and will be located at the highest point on
the gearbox. It operates like a check-valve to allow the
reducer to relieve internal pressure while preventing
lubricant contamination during cooling. A spring presses
a ball or plunger against a machined orifice until
pressure exceeds 2 psi. Above 2 psi, the air is allowed to
escape depressurizing the gearcase. When internal
pressure drops below 2 psi, the autovent reseals closing
the unit to the outside environment. After shutdown, the
reducer cools along with the air inside the reducer. The
unit will temporarily maintain a slight vacuum until
normalization occurs.
FIGURE 3: THE AUTOVENT RELEASES BUILT-UP
AIR PRESSURE FROM INSIDE THE GEARBOX (MAX.
PRESSURE 2PSI).
FILL LEVEL & DRAIN PLUGS: The drain plugs
(FIGURE 4) are metric socket head cap screws. They
will be located at the lowest part of the gearbox for ease
of draining. The fill level plug is a hex head cap screw. It
will be located between the Autovent and the drain plug.
Both types of plugs will have gaskets included to prevent
oil from leaking.
FIGURE 4: TWO TYPES OF PLUGS FOR
MAINTENANCE.