2205B0JE-DA-J-N_2014.05.
5 Maintenance and Inspection
Screw Compressor J-series
5.3 Management of Lubricant
5-19
5.3.2 Replacement Interval for Lubricant
5.3.2.1 First system startup
When the system is started up for the first time, the lubricant may get contaminated or deteriorate due
to scale inside the piping and vessels. For the first system start up, replace the lubricant 500 hours after
operation.
If the results do not meet the management standards for each oil type detailed in tables 5-8 to 5-10,
replace the lubricant.
5.3.2.2 During normal operation
Lubricant gradually degrades when used for a long term.
Though, the degradation rate differs depending on the operating conditions, oil type, and any foreign
substances or water in the oil.
Sample and analyze the lubricant every 6 months and if the results do not meet the management
criteria for each oil type detailed in tables 5-8 to 5-10, replace the lubricant.
However, if the oil filter is clogging frequently or the oil becomes black and opaque, replace the oil after
confirming and eliminating the cause.
