Doosan HP375WCU, Operation And Maintenance Manual

Page: 49 / 66

Maintenance Operation & Maintenance Manual
49
COMPRESSOR OIL FILTER
Refer to the MAINTENANCE CHART in this section for the recommended servicing intervals.
Removal
WARNING
!
Do not remove the filter(s) without first making sure that the machine is
stopped and the system has been completely relieved of all air pressure.
(Refer to STOPPING THE MACHINE in the OPERATING INSTRUCTIONS
section of this manual)
Clean the exterior of the filter housing and remove the spin-on element.
lnspection
Inspect the oil filter head to be sure the gasket was removed with the oil filter element. Clean
the gasket seal area on the oil filter head.
CAUTION
!
If there is any indication of the formation of varnishes, shellacs or
lacquers on the filter element, it is a warning that the compressor
lubricating and cooling oil has deteriorated and that it should be changed
immediately. Refer to LUBRICATION later in this section.
NOTICE
Installing a new oil filter element when the old gasket remains on the filter
head, will cause an oil leak and can cause property damage.
Reassembly
Clean the filter gasket contact area and install the new element.Tighten until the gasket makes
contact with the filter housing. Tighten an additional 1/2 to 3/4 of a revolution.
CAUTION
!
Start the machine (refer to PRIOR TO STARTING and STARTING THE