Troubleshooting
Problem
Possible cause
Solution
Air motor is not working and air is
coming from exhaust
Restricted or inadequate air supply
Check air supply and adjust to minimum
recommended level Check air supply hose
diameter and change it to minimum
recommended size (see specifications)
Check size of FRL and Quick disconnect
coupling Replace if small size or restricted
Erratic or accelerated operation
with short stroking
Dirty or damaged relay valve (
26
) or
air signal valve (
32
)
Check valves and clean if necessary
Replace any damaged seals or worn parts
20
