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© Danfoss | Climate Solutions | 2023.09
4 I Checking the compressor parts
Valve plates
Suction and pressure lamella must be undamaged and un-deformed. The sealing surfaces must be
clean and undamaged, between lamellas and valve plates there should not be any pollution
(dirt,
swarfs etc.). In case of a damage the valve plate must be replaced completely. Single lamella are not
available.
Oil pump
It must be possible to turn the oil pump by hand (turning to the left and to the right).
In the removed conditioning the reversing device of the oil pump must switch over audibly.
Oil filter / suction filter
The filter screen must be in an undamaged condition. Dirt and residues have to be removed.
If necessary, the filter have to be cleanded with compressed air or replaced with new ones.
In case of larger compressor damages which necessitate a complete disassembly of the
compressor, we recommend in principle the replacement of the valve plates, the piston
rings and all seals. Thus, concealed defects of parts which have been in operation may
be prevented.
