Nexen FMCBES-8-42 801481 - Manual (Page 7)

7
FORM NO. L-20241-G-1209
TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE SOLUTION
Failure to engage (clutch).
Air not getting to the FMCBES due to a control
valve malfunction. Check for a control valve malfunction or
low air pressure and replace the control
valve if necessary.
Lack of lubrication on Stub Shaft spline. Lubricate Stub Shaft spline.
Air leaks around the O-ring Seals. Replace the O-ring Seals.
Failure to engage (brake).
Weak or broken Compression Springs. Replace the Compression Springs.
Lack of lubrication on Stub Shaft spline. Lubricate Stub Shaft spline.
Failure to disengage (clutch).
Unexhausted air due to a control valve malfunction. Check for a control valve malfunction and
replace the control valve if necessary.
Lack of lubrication on Stub Shaft spline. Lubricate Stub Shaft spline.
Failure to disengage (brake).
Air not getting to the FMCBES due to a control
valve malfunction. Check for a control valve malfunction or
low air pressure and replace the control
valve if necessary.
Lack of lubrication on Stub Shaft spline. Lubricate Stub Shaft spline.
Loss of torque.
Air leaks around the O-ring Seals. Replace the O-ring Seals.
Worn or dirty Friction Facings. Replace the Friction Facings.
Ball
Bearing
Spring
Pin
Key
Stub
Shaft
Piston
Ball
Bearing
Ball
Bearings
Splined
Disc
Female
Pilot
Housing Male
Pilot
O-Ring
Seals
Air
Chamber
Drive
Disc
Friction
Facings
Air to
Clutch
Compression
Spring
FIGURE 3
Set
Screw
Plug