FORM NO. L-20087-R-0318
8
SYMPTOM
PROBABLE CAUSE
SOLUTION
Failure to engage
Air not being exhausted due to a control
valve malfunction
Replace the control valve.
Internal contamination or corrosion
Align the exhaust port to the six o'clock down
position to allow condensation to drain out of
the exhaust port.
Failure to
disengage
Broken Compression Springs
Replace the Compression Springs.
Low or lack of air pressure
Check for control valve malfunction and
replace it if necessary.
Check for air leaks in the air lines and around
the O-rings Seals. Replace the air lines or O-
ring Seals if necessary.
Internal contamination or corrosion
Align the exhaust port to the six o'clock down
position to allow condensation to drain out of
the exhaust port.
Loss of torque
Worn or dirty Friction Facings
Replace the Friction Facings.
TROUBLESHOOTING
FIGURE 4
Friction
Facing
Piston
Plate
Shoulder
Bolt
Compression
Spring
Ball
Bearing
O-ring
Seals
Air
Chamber
Piston
Friction
Disc Hub
