Nilfisk-ALTO NEPTUNE 4 FA Service Manual page 40

Valves
Pic. F.16: Suction valves

Overview of the placement of suction valve
parts.
Picture of piston guides
Fig.F.18: Pressure valves

The pressure valves can easily be taken
out of the cylinder head.

Replace with new parts if necessary.
NEPTUNE 4 FA_EN_Ver.2.0_ 22/11
Service / Repair
Pic. F.17: Pressure valves

Overview of the placement of pressure
valve parts
Fig.F.19: Pressure valve seat

Take out the pressure valve seats with
an adequate puller.

Replace with new parts if necessary.

Puller used in the picture is Bahco
4521N-00
F
38