Danfoss APP 46/1780 Manual de servicio - Página 12

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

Changing pistons

12 | 180R9406 | AX274339308034en-000302

Tools needed are:

•

13 mm combination wrench

•

6 mm allen key:

•

Service kit - see parts list 521B0941

7.1

Disassembling

1. Disconnect the pump from the rest of the

system.

Warning:

Never unscrew the 4 screws marked

with coloured sealer.

3. Mount the guide bolt in the top hole.

2. Loosen all screws on the pump except

the three screws as shown above.

Note:

There is still water inside the pump.

4. Unscrew the remaining three screws

by using the combination wrench to turn

each screw a couple of rounds at a time so

the flange is removed as straight forward

as possible..