Nexen MWB 847501 - Manual (Page 6)

3 FORM NO. L-20010-G-1209
6 FORM NO. L-21089-B-1009
NOTE
Nexen pneumatically actuated devices require clean, pressure regulated air for maximum performance and
life. All seals in Nexen pneumatically operated devices are lubricated for life, and do not require additional
lubrication.
However, some customers prefer to use an air line lubricator, which injects oil into the pressurized air, forcing
an oil mist into the air chamber. This is acceptable, but care must be taken to ensure once an air mist lubrication
system is used, it is continually used over the life of the product as the oil mist may wash free the factory
installed lubrication.
Locate the lubricator above and within ten feet of the product, and use low viscosity oil such as SAE-10.
Synthetic lubricants are not recommended.
Nexen product's bearings are shielded and pre-lubricated, and require no further lubrication.
LUBRICATOR DRIP RATE SETTINGS
1. Close and disconnect the air line from the unit.
2. Turn the Lubricator Adjustment Knob counterclockwise
three complete turns.
3. Open the air line.
LUBRICATION
CAUTION
These settings are for Nexen supplied
lubricators. If you are not using a Nexen
lubricator, calibration must follow the
manufacturer's suggested procedure.
4. Close the air line to the unit when a drop of oil forms
in the Lubricator Sight Gage.
5. Connect the air line to the unit.
6. Turn the Lubricator Adjustment Knob clockwise until
closed.
7. Turn the Lubricator Adjustment Knob counterclockwise
one-third turn.
8. Open the air line to the unit.
BRAKE GUARD INSTALLATION
NOTE: Refer to Figure 3.
1. Align the mounting holes of the Brake Guard with the
four tapped holes in the TSE Mounting Flange.
2. Using the four 10-24 X 3/8 Phillips Head Pan Screws
and Internal Tooth Lock Washers, secure the Brake
Guard to the TSE.
3. If the Brake Guard is not through shaft mounting, place
the End Cap over the front of the Brake Guard and bend
the tabs around the Brake Guard to hold the End Cap
in place.
FIGURE 3
Brake Guard
End Cap
TSE Mounting
Flange
NOTE
For quick response, Nexen recommends
a quick exhaust valve and short air lines
between the Control Valves and the unit.
Align the air inlet ports to a down position
to allow condensation to drain out of the air
chambers of the product.
AIR CONNECTIONS
All Nexen pneumatically actuated devices require clean and
dry air, which meets or exceeds ISO 8573.1:2001 Class
4.4.3 quality. The following is a common air supply scheme used with this
product. This is an example and not an all-inclusive list. All
air circuits to be used with this product must be designed
following EN983 guidelines.
CAUTION
Low air pressure will cause slippage and
overheating. Excessive air pressure will
cause abrupt starts and stops, reducing
product life.