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"Oil-Less" Scroll Laboratory Air
4.0 Trouble Shooting
Problem
Low discharge pressure
Compressor cycles too often
Compressor won't shut off
Excessive belt wear
Abnormal noise
NOTE: For air dryer touble shooting, see Appendix A.
4107 9006 25.11
Possible Causes
System piping leaks
Defective pressure sensor
Aftercooler drain solenoid stuck
open
Belts slipping
Intake fi lter clogged
System undersized
Faulty pressure sensor
System piping leaks
Check valve or line to receiver is
leaking or plugged
Both dryers on line
Water in air receiver
Pressure sensor faulty
Belt tension
Belt alignment
Mounting bolts loose
Belt tension
4-2
Solution
Repair leaks
Replace sensor
Check electrical connections
Adjust tension
Clean or replace
Contact BeaconMedæs
Replace sensor
Repair leaks
Replace if necessary
Valve off one dryer
Drain air receiver
Adjust or replace
Adjust tension
Realign compressor & motor sheaves
Tighten bolts
Adjust tensions
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Table of Contents
Troubleshooting
