Nexen F-450 802700 - Manual (Page 8)

8 FORM NO. L-20003-AA-1112
An Air Line (Item 21) is furnished and air controls with
1/8 NPT ports are recommended. Where long air lines are
required, a Quick Exhaust Valve (Nexen Product No. 945100)
is recommended to ensure rapid disengagement.
NOTE: Because of the necessary movement of the Air
Chamber and Air Line upon engagement, flexible tubing
or air lines must be used on the Clutch.
AIR CONNECTIONS
Due to bearing seal drag, the outer portion of the Clutch
will rotate when it is engaged. Rest the Air Line against
a support that is parallel to the centerline of the Clutch to
stop this rotation.
NOTE
For quick response, Nexen recommends a quick exhaust
valve and short air lines between the Control Valves and
the product. Align the air inlet ports to a down position
to allow condensation to drain out of the air chambers
of the product.
CAUTION
Low air pressure will cause slippage and
overheating. Excessive air pressure will
cause abrupt starts and stops, reducing
product life.
All Nexen pneumatically actuated devices require clean
and dry air, which meet 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.
OPERATION
WARNING
Never exceed maximum operating
speeds listed for your product.
(See Table 8).
CAUTION
The temperature limits for this
product line are 4.5-100 Degree
Celsius (40-220 Degree F).
CAUTION
Never exceed life of facing material. Facing
life depends on the volume of material and
the total energy over the life of the unit.
Expected life (in hrs) can be found by:
Time=Volume/(Power*Wear Rate).
TABLE 8
Size Max RPM
FW 3,600
LW 3,600
MW 1,800
HW 1,800
WARNING
Ensure proper guarding of the product is
used. Nexen recommends the machine builder
design guarding in compliance with OSHA 29
CFR 1910 “Occupational Safety and Health
Hazards”.