44.
7.7 LOW RESERVOIR PRESSURE / LOW AIR DELIVERY
POSSIBLE CAUSE
CORRECTION
Excessive leaks in service lines.
Check air system for leaks, fix leaks.
Inlet valve not fully open.
Replace valve. Contact your Rogers factory
representative.
Plugged air intake filter.
Clean air filter element or replace with new element.
Air pressure settings not set
correctly.
Readjust the air pressure set points to the desired load
and unload pressure. See Description of Operations.
Faulty blowdown valve or
unloading valve (open while
loaded).
Verify control setting. Repair or replace, if necessary.
See Description of Operations / Display and Controls
manual. Check wiring connections.
Restriction in system.
Check separator element, aftercooler, dryer and filters
for restriction.
Check for ice formation internal to aftercooler. Contact
your Rogers factory representative.
Faulty control line regulator.
Repair/replace regulator.
Faulty safety relief valve.
Repair/replace, as necessary.
High altitude installation.
Contact your Rogers factory representative.
7.8 HIGH DISCHARGE PRESSURE
POSSIBLE CAUSE
CORRECTION
Fails to unload
Load/unload pressure settings
incorrectly set.
Reset pressure set points to desired load/unload
pressures. See Description of Operation / Display and
Controls manual.
Faulty control line filter.
Check for leaks. Clean filter. Replace element.
Inlet valve not fully closed.
Inspect/Adjust inlet valve. See Section 1.6. See
Description of Operation.
Leaky control air lines.
Inspect and repair leaks.
Plugged separator.
Replace with new air/lubricant separator. Determine
cause of contamination. See “Separator Clogging”,
Section 7.6.
7.9 HIGH DISCHARGE AIR TEMPERATURE AND/OR HIGH LUBRICANT
INJECTION TEMPERATURE
POSSIBLE CAUSE
CORRECTION
Inadequate circulation of cooling
air at the cooler (air-cooled
models).
See Section 2.5. Check cooler installations.
Low lubricant level in the reservoir. Add lubricant to recommended level. See Section 4.3.
Lubricant line restrictions.
Check Lubricant piping system. Clean as required or
replace.
Clogged lubricant filter.
Replace lubricant filter element(s).
Clogged lubricant cooler.
Check lubricant cooler for varnishing and deposits.
See Section 4.5.1.
Excessive ambient temperatures.
Ventilate room or relocate compressor if necessary.
Contact your Rogers factory representative. See
Section 2.2
Incorrect fan rotation.
Verify correct fan rotation such that fan is pushing air
through cooler. Cooling air should enter the cabinet,
Summary of Contents for KI Series
Page 1: ...1 Model __________________ Serial __________________ Rotary Screw Air Compressors...
Page 8: ...7 INTENTIONALLY BLANK...
Page 9: ...8 CHAPTER 1 GENERAL INFORMATION...
Page 19: ...10 CHAPTER 2 INSTALLATION INSTRUCTIONS...
Page 26: ...17 CHAPTER 3 ELECTRICAL INFORMATION...
Page 30: ...21 CHAPTER 4 COMPRESSOR LUBRICANT...
Page 39: ...30 INTENTIONALLY BLANK...
Page 40: ...31 CHAPTER 5 AIR INLET FILTER INFORMATION...
Page 43: ...34 INTENTIONALLY BLANK...
Page 44: ...35 CHAPTER 6 COMPRESSOR OPERATIONS...
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Page 50: ...41 CHAPTER 7 TROUBLESHOOTING...
Page 57: ...48 CHAPTER 8 FORMS RECORDS AND ELECTRICAL SCHEMATICS...
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