6
FORM NO. L-21026-D-0105
AIR LINE CONNECTIONS
Connect the Air Hose Assembly (Item 19) to the 1/8 NPT
female Air Inlet Fitting (Item 18) in the Air Chamber (Item
9).
NOTE: To relieve bearing drag during operation, secure
the air hose to a support.
CAUTION
Use ONLY the supplied air hose assembly to connect the B-275 Clutch to the Air Chamber.
Do NOT use rigid pipe or tubing. Rigid pipe or tubing can cause the B-275 Clutch to fail.
FIGURE 4
AIR PREPARATION
LUBRICATED AIR
Nexen recommends one drop of oil for every 20 cubic feet of air.
NON-LUBRICATED AIR
Nexen recommends the use of filtered, lubricated air to avoid premature seal wear and extend the life of the seal.
However, because the seals are lubricated prior to product assembly, they can operate with clean, dry non-lubricated air,
when conditions do not allow the use of lubricated air. The preparation of the air is critical to the life of clutch-brake
seals. To prepare the air; filter the air to 5 microns or better. The dew point specification should be 40°F or lower.
LUBRICATOR DRIP RATE SETTINGS
NOTE: The settings listed are for Nexen supplied lubricators. If you are not using a Nexen lubricator, then calibration
must replicate the following procedure.
Hose Assembly
(Item 19)
Air Fitting
(Item 18)
Air Chamber
(Item 9)
B-275
Clutch
1.
Close and disconnect the air line from the unit.
2.
Turn the Lubricator Adjustment Knob
clockwise
three complete turns.
3.
Open the air line.
4.
When a drop of oil forms in the Lubricator Sight
Gage, close the air line to the unit.
5.
Connect the air line to the unit.
6.
Turn the Lubricator Adjustment Knob
counterclockwise
until it is closed.
7.
Turn the Lubricator Adjustment Knob
clockwise
one-
third turn.
8.
Open the air line to the unit.
®
DIST. AUTORIZADO
MEX (55) 53 63 23 31
QRO (442) 1 95 72 60
MTY (81) 83 54 10 18
[email protected]
