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Instruction Manual w Junior II
5.
STORAGE, PRESERVATION
GENERAL
If the compressor is put out of service for more than six
months, the unit should be preserved in accordance with the
following instructions: Make sure the compressor is kept in
doors in a dry, dust free room. Only cover the compressor
with plastic if it is certain that no condensation will form
under the sheet. Nevertheless, the sheet should be removed
from time to time and the unit cleaned on the outside. If this
procedure cannot be followed and/or the compressor is
going to be taken out of service for more than 2 years, please
contact our Technical Service Department for special instruc
tions.
The compressor is not resistant to salt-
water! If not in use keep unit in a dry place.
PREPARATION
Before preserving the compressor unit, run it warm and
when it reaches the specified service pressure, keep it run
ning for approx. 10 minutes.
Then carry out the following:
-
Check all pipes, filters and valves (also safety valves) for
leakage.
-
Tighten all couplings, as required.
-
After 10 minutes, open the filling valves or the outlet
valve and run the compressor at the set minimum pres
sure (pressure maintaining valve, see chapter 4.4.5.) for
approx. 5 minutes.
-
After these 5 minutes, shut the system down. Drain con
densate from separators. Depressurize unit. Shut filling
valves.
-
Open filters and grease threads.
-
Ensure that filter cartridge remains in the filter!
This will prevent oil entering filling lines as a result of pres
ervation procedures.
-
Remove intake filter from manifold and all intake lines
from valve heads.
-
Let compressor unit cool down.
PRESERVING THE COMPRESSOR
-
Turn the compressor on and spray a small amount (ap
prox. 10 ccm/0.6 cu. in.) of compressor oil into the valve
head inlet port while the compressor is running. Do not
let the compressor warm up too much, to keep oil sticky.
-
Shut compressor unit off.
-
Close all valves.
-
Place the dust cap onto the inlet port.
PRESERVING THE MOTOR/ENGINE
Preserve the motor/engine according to the instructions of
the motor/engine manufacturer.
PREVENTIVE MAINTENANCE DURING STORAGE
Run the compressor once every 6 months as described in
the following:
-
Remove the dust cap from the inlet port and insert the in
take filter.
-
Open the filling valves or the outlet valve and let the unit
run for approx. 10 minutes or until the pressure gauges
indicate the correct values.
-
Stop the compressor.
-
Open condensate drain valves and release compressed
air. Close condensate drain valves again.
-
Carry out preservation procedure according to chapter
"preserving the compressor"
Changing the lube oil for preserving
-
After prolonged storage, the oil will age in the com
pressor and engine. It should be drained after 2 years at
the latest and replaced with fresh oil.
-
The stated period can only be attained when the crank
case is sealed during the preservation period in accord
ance with the preservation requirements.
-
After changing the oil, turn the compressor and the en
gine or run them for the required period.
-
Check the lubrication of the compressor when putting
the unit into operation once every six months or when
turning the compressor. The oil pump is functioning
properly when oil can be seen flowing through the sight
glass of the oil pressure regulator and if the oil pressure
gauge indicates the prescribed pressure.
REACTIVATING THE COMPRESSOR UNIT
-
Remove the dust cap from the inlet port and insert the in
take filter.
-
Check the oil level of the compressor.
-
Check the motor/engine according to the manufacturer's
instructions.
-
Open the purifier and change all filter cartridges.
-
Run the compressor warm with open filling valves or
outlet valve for approx. 10 minutes.
-
Check the oil pressure on the pressure gauge. If there is
any fault, check the lubrication of the compressor.
-
After 10 minutes, close the filling valves or the outlet valve
and run the unit up to final pressure until the final pressure
safety valve blows.
-
Check the inter-pressure safety valves for leakage.
-
Establish cause of any fault from the trouble-shooting
table, chapter 4.5., and take corrective action.
-
Stop the system when running properly, the compressor
is then ready for operation.
31
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