Danfoss PAHT 256-308 Instructie - Pagina 6

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Instruction
3.

Assembling the pump

6
Disassembling and assembling PAHT and PAHT G 256-308
WARNING:
Do not use silicone when assembling the
pump. Do not reuse disassembled O-rings;
they might be damaged. Always use new
O-rings.
Note:
Place the pump on a pallet or other stable
surface above the ground. Ensure that
the pump cannot roll. It must be possible
to place the pump vertically with the
shaft pointing downwards. This can be
done between two pallets or between
two boards on a pallet provided that the
distance is minimum 50 mm.
1. Lubrication:
• To prevent seizing-up, lubricate all
threads with PTFE lubrication type.
• O-rings inside pump may be lubricated
only with clean filtered water.
• O-rings for port flange, mounting flange
and flushing valve must be lubricated.
• It is important to lubricate ALL parts to
be assembled with clean filtered water
(Especially all PEEK parts).
3. Mount O-ring.
Insert pin for positioning housing
on port flange.
Ensure that two screw holes can be
reached from below.
180R9268 / 521B1236 / DKCFN.PI.011.B3.02 / 01.2015
Important:
It is essential that the pump is serviced in
conditions of absolute cleanliness. All parts
must be absolute clean before mounting.
2. Place port flange with O-ring pointing
upwards.
4. Position housing alingning pin hole
over pin. Carefully press the port flange
downwards. Do not squeeze the O-ring. If
the O-ring is damaged, the pump will leak.
Screw in at least two screws.