Operator's Manual High Pressure Breathing Air Compressors

6.5.1. Changing the lube oil for preserving
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Operator’s Manual
-- After prolonged storage, the oil will age in the compressor 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 crankcase is sealed during the preservation period in accordance with the preservation
requirements.
-- After changing the oil, turn the compressor and the engine or run them for the required period. See paras. 6.2. and 6.5
-- 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.
6.6. REACTIVATING THE COMPRESSOR UNIT
-- Remove the dust cap from the inlet port and insert the intake filter.
-- Check the oil level of the compressor.
-- Check the motor/engine according to the manufacturer’s instructions.
-- Turn the compressor unit a few times by hand.
-- Run the compressor warm with open filling valves or outlet valve for approx. 10 minutes.
-- Check the oil flow through the sight glass or 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. To do so, override the pressure switch, if installed on the unit. On units with a built in compressor control put the S3 service
switch on position ON.
-- Check the intermediate--pressure safety valves for leakage.
-- Establish cause of any fault from the trouble--shooting table and remedy.
-- On units, equipped with a filter system, please note:
open purifier and replace filter cartridge.
-- Stop the system when running properly, the compressor is then ready for operation.