Nexen 5H70P 917500 - Manual (Page 9)

9 FORM NO. L-20008-V-0511
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE SOLUTION
Failure to engage. Control Valve malfunction or low air
pressure.
Check system for air leaks or replace Control
Valve.
Lack of lubrication on Hub spline or on
O-Ring Seals.
Lubricate Hub spline and check O-Ring Seal
lubrication.
Using rigid pipe or tubing for air line
connections.
Use flexible tubing for air line connections.
Use of a rigid coupling connected directly
to the Drive Flange.
Use Nexen's flexible Coupling.
Failure to disengage. Lack of lubrication on Hub spline or on
O-Ring Seals.
Lubricate Hub spline and check O-Ring Seal
lubrication.
Unexhausted air, due to Control Valve
malfunction.
Replace Control Valve.
Broken Return Springs. Replace Return Springs.
Use of a rigid coupling connected directly
to the Drive Flange.
Use Nexen's flexible Coupling.
Tooth wear or clicking
sound.
Excessive engagement RPM, or
unintentional disengagement due to torque
overload.
Contact Nexen for Clutch specifications.
Bearing failure. Excessive air pressure increases the thrust
load on the bearings.
Limit air pressure to 80 psi [5.52 bar].
Exceeding maximum/minimum specified
speed limit.
Stay within the maximum specified speed limits
as specified in the ''Air Champ'' catalog.
Coupling misapplied. Use Nexen's Flexible Couplings for in-line
applications. Do not connect a rigid coupling
directly to the Drive Flange.
Wide pulleys or sprockets which extend
beyond the end of the clutch will increase
the radial load and reduce bearing life.
Avoid applying excessive overhung loads to Pilot
Mount 5HP Tooth Clutches.
FIGURE 2
5HP
Compression
Spring
Drive
Ring
Piston
Ball
Bearing
Cylinder
Hub
Ball
Bearing
O-Ring
Seals
Drive
Flange
Backing
Plate
Ball
Bearing
5H
Compression
Spring
Drive Ring
Piston
Ball
Bearing
Cylinder
Hub
Ball
Bearing
O-Ring
Seals
Drive Flange
Backing
Plate Ball
Bearing