Full; Safety Relief Valve Blows Off; Oil In The Package; Excessive Oil Consumption - KAESER SK 19 Service Manual

8.6.5 Full -- load/Idle sequence occurs too frequently (short cycles)
Possible cause:
Receiver tank size is too small or there
is no tank.
Diameter of hose connecting the unit
to the receiver tank is too small.
Minimum pressure check valve leaks.
Flow is restricted at discharge.
8.6.6

Safety relief valve blows off

Possible cause:
System does not discharge at idle.
Oil separator cartridge is contamina-
ted.
Minimum pressure check valve does
not open.
Safety relief valve not properly sized
for the pressure of the compressor
unit.
8.6.7

Oil in the package

Possible cause:
Maintenance hose or coupling still
plugged into the air receiver connec-
tion point.
Pressure relief valve blowing off.
Oil running out of air filter.
Air receiver hose coupling loose.
Oil cooler leaking.
8.6.8

Excessive oil consumption

Possible cause:
Wrong oil is being used in the unit.
Oil separator cartridge has ruptured.
Operation
Remedy:
Consult authorized KAESER distributor
for recommended tank size.
Connecting hose diameter should not
be smaller than the air discharge pipe
diameter. Install larger hose if neces-
sary.
Check the valve and replace defective
parts.
Look for plugged filters, partially
closed valves, frozen pipes or malfunc-
tioning pressure regulators.
Remedy:
Make sure ball valve in vent line is
open. Check the control lines, inlet
valve and combined control/vent valve.
Replace defective parts as needed.
Check the cartridge pressure differen-
tial and replace cartridge if necessary.
Check the valve for blockage and re-
place defective parts as necessary.
Check blow ---off pressure and com-
pare to name plate of the compressor.
Replace if necessary.
Remedy:
Remove hose/coupling from the con-
nection point.
see chapter 8.6.6.
see chapter 8.6.4.
Tighten up hose coupling or replace
as necessary.
Have the oil cooler replaced by an au-
thorized KAESER Service Technician.
Remedy:
Replace with correct oil type.
Consult authorized KAESER distributor
for other oil types not listed.
Check pressure differential and re-
place oil separator cartridge if neces-
sary.
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