Danfoss APP 21 Manuale di servizio - Pagina 6

Sfoglia online o scarica il pdf Manuale di servizio per Pompa dell'acqua Danfoss APP 21. Danfoss APP 21 20. Disassembling and assembling

Service guide | Disassembling and Assembling, APP 21 - 46 and APP W HC 15 -30

Assembling the pump

6 | 180R9406 | AX274339308034en-000302

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.

4. Insert pin for positioning housing

on port flange.

Ensure that two screw holes can be

reached from below.

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.

5. Position housing aligning pin hole

over guide pin.

6. Gently press downwards. Be careful not to

squeeze O-ring. If O-ring is damaged, the

pump will leak.

7. Screw in at least two screws.