Nilfisk-Advance Core 125 Repair Manual page 11

D
Service / Repair.
Dismounting / mounting of water / oil seal and valves.
To change the oil seals, water seals and pressure valve, use a screw driver to dismount the
parts (fig 3 & 4).
Alternatively there is a puller number 1220103 to pull out the valves seats (pressure and
suction valves.
Note: the seat is no longer usable after using the puller
Cleanup and lubricate before mounting!
Fig 1 is showing the pump after opening the cylinder head from the cylinder block.
Fig 2 is showing how all the parts must be assembled into the cylinder head.
Fig. 1 Fig. 2
Fig. 3 Fig. 4
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