NBE BRAWN MIXER BTR 1 Series, Руководство по эксплуатации и обслуживанию

Страница: 22 / 32

AUTOMATIC LUBRICATOR
RETAIN FOR FUTURE USE
Automatic Lubricator
Some NORD gear units with NEMA (or IEC) adapters rang-
ing in size from N250TC-N400TC (or IEC160-IEC315) are sup-
plied with a factory-installed, field-activated, PERMA® Classic
Automatic Lubrication Cartridge. The automatic lubricator is
used to dispense lubricant to the outer most roller bearing
of the input NEMA (or IEC) input assembly. The lubrication
cartridge must be activated prior to commissioning the gear
unit. (Figures 1 & 2)
Some newer versions of the NEMA (or IEC) adapters also in-
clude a grease purge. The grease purge area is sealed for
transportation; however, it is recommended that the G1/4
sealing screw be removed and that the grease collection con-
tainer provided by NORD be installed just prior to activating
the automatic lubricant dispenser. (Figure 3)
Principle of Operation
First the activation screw is threaded into the lubrication can-
ister. Then the ring-eyelet on top of the activation screw is
tightened until its breaking point. This causes a zinc-molyb-
denum gas generator to drop into a citric acid liquid electro-
lyte, which is contained within an elastic bladder. An electro-
chemical reaction slowly releases small amounts of hydrogen
gas and gradually pressurizes the bladder, pushing the piston
towards the lubrication chamber.
Grease is continuously injected into the lubrication point un-
til the bearing cavity is full. Any back pressure from the bear-
ing will cause the system to neutralize. The bladder inside the
canister will continue to slowly build pressure so that once
the equipment resumes normal operation; the lubricator will
also resume its normal function.
The lubricator contains approximately 120 cm 3 or 120 ml
(4.8 oz) of grease. For reference, a single stroke of a typical
grease gun delivers approximately 1.0-1.2 cm 3 (0.03–0.04 oz)
of grease. This means the canister contains approximately
100 strokes of grease. See Figure 1 for a detailed view of the
PERMA® Lubricator.
Figure 1 - PERMA
®
Automatic Lubrication Canister
NOTICE
• To prevent premature bearing failure, the lubrication
dispenser must be activated prior to commissioning
the gear reducer.
• The lubricator must only be used once and should
never be opened or taken apart or permanent damage
will result.
• Never unscrew the PERMA® canister from the lubrica-
tion point after activation or during the discharge
period. This would cause a permanent pressure loss in
the lubricator and would justify replacing the lubricator.
WARNING
• Avoid swallowing the gas generator, the liquid electro-
lyte, and the lubricant.
• Avoid contact of, the liquid electrolyte, and the lubri-
cant with the eyes, skin or clothing.
• Observe all applicable MSDS sheets.
• Follow applicable local laws and regulations concerning
waste disposal.
U45250 - 1 of 3
www.nord.com/docs 01.31.17
NORD Gear Corporation
Toll Free in the United States: 888.314.6673
NORD Gear Limited
Toll Free in Canada: 800.668.4378
PERMA
®
Automatic Lubricator Options Supplied by NORD
NORD Part Number 28301000 28301010
Lubrication Option Synthetic (standard) Food Grade (optional)
PERMA® Classic Temperature Range
♦
0 to 40 °C (32 to 104 °F) 0 to 40 °C (32 to 104 °F)
Lubrication Volume 120 cm
3
or 120 ml (4.8 oz) 120 cm
3
or 120 ml (4.8 oz)
Grease Lubrication Mfg. / Type Klüber / Petamo GHY 133 Lubriplate / FGL1
Lubrication Temperature Range
♦
-30 to 120 °C (-22 to 248 °F) -18 to 120 °C (0 to 248 °F)
♦
The temperature range values shown do not apply to other components and/or lubricants within the gear reducer.