INSTALLATION, START-UP & MAINTENANCE MANUAL
SD-220 TO SD-600
REV 04 – 10 Oct 2003
Page 31 of 32
7.3. BACK PRESSURE IS TOO HIGH DURING REGENERATION PHASE
Possible Cause Solution
Silencer is blocked Clean or replace silencer
Inlet/exhaust valve cylinders defective Lubricate cylinder
Replace seals if necessary
Replace cylinder
Check valves are not sealing Repair check valve
CAUTION!
If you are not able to fix a problem, call your local Sullair distributor or
the Sullair Service Department. A service technician will help you with
the problem or, if necessary, be sent to site.
7.4. SHORT-TERM SHUT-DOWN
☛ Note
• Wait until dryer is in repress
• Switch off the adsorption dryer.
• Close all the shutoff valves up and down stream of the dryer.
CAUTION!
Dryer will remain pressurized.
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