8
Section 08 TROUBLESHOOTING
8.10 VACUUM PROBLEMS Leakage, contamination, and unusual outgassing are the general causes of problems
associated with poor vacuum. To operate at maximum efficiency, a system must be thoroughly clean. It the system is
completely clean and free from leaks, and unwarranted vacuum problems still exist, the pump should be checked. A simple
criterion for the condition of the pump is the determination of its maximum vacuum capability. This can be accomplished by
blocking of the intake and reading the vacuum level on the gauge (See Section II-8).
8.20 PRESSURE PROBLEMS Leakage and contamination are the general causes of problems associated with poor
pressure. To operate at maximum efficiency a system must be thoroughly clean. If the system is completely clean and free
from leaks, and unwarranted pressure problems still exist, the pump/compressor should be checked by a service technician.
(See Section II-8).
8.30 TROUBLESHOOTING GUIDE
Section 09 SPECIFICATION
Note: **50 Hz models provided with CE mark.
Poor Pumping
Speed
Poor
Pressure Loud Unit Possible Cause Corrective Action
X X X Damaged Valves Re place fl apper v alves
X X X Debris in Valves Remove debris and check
for valve damage
X X X Damaged Gaskets Replace gaskets
X X X Loose Head Scre ws Tighte n head scr ews
X X Loose Fitti ngs Ti ghten fitting s
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