NORD Drivesystems B1000 - Manual (Page 29)

www.nord.com A27 G1000 – Subject to Change Without Notice
INTRODUCTION
Oil Sight Glass (OSG)
The oil sight glass provides a visible oil level indication
on the reducer. The sight glass replaces the standard
steel fi ll plug and consists of a sealed clear porthole
centered in the middle of a brass plug. The sight glass
allows for quick oil level and color inspection.
Autovent™ (DR)
The Autovent™ prevents entry
of foreign material, such as wa-
ter, dust, corrosives, etc… and is
perfect for washdown and dusty
environments. The Autovent™
is a ball and spring check valve
that opens at 2 psi and dur-
ing operation and closes tight-
ly when the gearbox cools.
The Autovent™ is standard
on all vented NORD reduc-
ers some of the benefi ts are
cleaner gearbox oil, extended
lubrication life and longer last-
ing seals, gears, and bearings.
Open Vent (OV)
An open vent can be optionally supplied on NORD
reducers. The open vent allows for air pressure dif-
ferences between the inner space of the reducer and
the atmosphere. This open vent will be closed upon
delivery to prevent oil leakage. Before the reducer is
put in service the open vent should be activated by
removing the sealing plug.
Filtered Vent (FV)
NORD offers a fi ltered vent, which allows gases to
permeate, but does not allow dust and debris to pass
through the vent.
Magnetic Drain Plug (MDP)
Magnetic drain plugs attract and hold ferrous metal
particles that may circulate inside the reducer’s lubri-
cation system. These potentially abrasive particles
may cause excessive wear in the reducer if they re-
main circulating. An increase of collected material
may be a warning sign of future problems.
Special Drain Plugs
NORD oil drain valves are offered
to make draining the oil from the
gearbox clean and easy. The drain
hose needs to be supplied by the
customer. The hose fi ttings are of-
fered in either 90° or straight to ac-
commodate the user.
A brass drain valve is threaded into
the existing oil drain port of the
gearbox. The spring valve is closed
using a rubber o-ring. When the
hose fi tting is threaded into the
drain valve, the spring valve is
pushed open and allows oil to drain. When the hose
fi tting is removed, the drain valve closes. A brass,
threaded cap is supplied to cover the drain valve
when not in use.
Additional Drain Plug Hole (ADP)
NORD can add an additional drain hole to the reducer
housing for a small surcharge if required for special
oil plumbing needs.
Long Term Storage (LL)
Speed reducers are frequently put in storage prior to
installation for long periods of time and in some cases
exposed to the elements. NORD’s long term storage
option protects the unit from moisture or corrosion
by coating all unpainted surfaces with a dry, transpar-
ent, durable waxy fi lm. Once installation is necessary
this waxy fi lm can be easily removed with a commer-
cial de-greaser or petroleum solvent. If possible the
store room should be vented and dry, with room tem-
peratures between 23ºF and 104 ºF (-5 ºC and 40 ºC).
Gear Unit
Options