Nexen TCC Caliper 835121 - Manual (Page 9)

6 FORM NO. L-20065-K-0110
AIR CONNECTIONS
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. All Nexen pneumatically actuated devices require clean,
dry air that meets or exceeds ISO 8573.1:2001 Class
4.4.3 to quality.
LUBRICATION
CAUTION
LUBRICATOR DRIP RATE SETTINGS
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.
These settings are for Nexen supplied
lubricators. If you are not using a Nexen
lubricator, calibration must follow the
manufacturer's suggested procedure.
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.
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.
CAUTION
Low air pressure will cause slippage and
overheating. Excessive air pressure will
cause abrupt starts and stops, reducing
product life.
NOTE
The caliper diaphragms of the TCB do not require lubrication. If an air line lubricator is used on the air line
for the controls, the lubricant must be compatible with the silicone diaphragm.