2.8.9
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NOTE: Ambient temperature range shall be limited to
one of the standard temperature ranges listed in
AGMA 6010 or AGMA 6023 and should be limited to the
actual temperature range in which the reducers are
expected to operate. The selection of EP (extreme
pressure) and other additives should be left to the
manufacturer. EP oil is normally necessary.
Lubricant shall also be suitable for use with the
oil lubricated hydrodynamic fluid film-type
backstop. EP oils will work acceptably in
roller-inclined ramp backstops. The oil must also
be compatible with the hydrodynamic thrust bearing
if one is used. Generally, gear oil is not optimum
for these bearings but is acceptable. The
manufacturer should generally not be precluded from
utilizing a separate lubrication system for this
bearing if the bearing requires a lighter oil.
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Lubricating oil shall be mineral oil or synthetic hydrocarbon as
recommended in AGMA 6010 or AGMA 6023 for an ambient temperature range of [
minus 10 to plus 50 degrees C 15 to 125 degrees F] [_____]. The lubricant
shall be suitable for the entire temperature range without change of
lubricant. Lubricant additives shall be used as recommended by the reducer
manufacturer. Lubricant shall also be suitable for use with the backstop.
Lubricant used for the hydrodynamic thrust bearing shall be suitable for
the bearing. Catalog data of the proposed lubricant shall be submitted for
approval in accordance with paragraph SUBMITTALS.
2.9
INSTRUMENTATION
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NOTE: Provided that the prime mover and reducer are
purchased and installed under a single contract, the
Contractor must deliver the instrumentation as a
complete working package. If the reducer is
purchased separately, the designer is responsible
for taking care of additional plans and
specifications for the instrumentation. On
noncritical applications, consideration may be given
by the designer to delete the high temperature
switch, flow switch, and vibration switch. The
designer would then delete all electrical
requirements for instrumentation.
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Instrumentation for the reducer shall be supplied and installed as a
complete working package, coordinated with the pump and prime mover
supplier. All electrical work shall conform to NFPA 70. Electrical
enclosures shall be NEMA 250, Type 4. An electrical termination cabinet
shall be provided. Available power is 120 V, 1 ph. The speed reducer
shall have the following devices as a minimum:
a.
High oil temperature switch in unit sump
(1)
Alarm at 80 degrees C 180 degrees F.
SECTION 15005A
Page 17
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