Danfoss PAH 50 Manuale di istruzioni - Pagina 5

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Danfoss PAH 50 Manuale di istruzioni
Inspection:
Port plate and thrust plate
1.
Neither port plate nor thrust plate must show any sign of wear.
2. Hold a ruler against surface of plate and check tightness against a
light source.
3.
Check that both O-rings and back-up rings are not broken and do
not show severe wear.
521B1072
Pistons
1.
Play in ball and socket joint must not exceed 0.1 mm.
2. Thickness of piston shoes must be at least 4.4 mm.
3.
Hold a ruler against surfaces of piston shoes to check that the
surfaces are even and smooth and without any scratches.
4. Pumps for technical water only:
It is acceptable that the (black) treated surfaces of the pistons are
partly worn.
DKCFN.PI.011.NC3.02
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