Service guide | Disassembling and Assembling, APP
21 - 46 and APP W HC 15 - 30
© Danfoss | 2023.03
180R9406 | AX274339308034en-000302 | 3
2. Disassembling the
pump
2. Using a 10 mm combination wrench,
unscrew the four bolts from shaft seal
flange.
If shaft seal flange is stuck, screw in two
bolts in holes in the flange to remove it.
1. Disconnect the pump and motor from the
system. Remove non-return valve and
connector from the pump.
4. Mount the M8 allen screw from the tool
set in the top of the shaft.
5. Wet the shaft and shaft seal with clean
filtered water.
3. Remove ceramic ring from flange by
gently pushing it from the back of the
sealing ring.
6. Carefully remove the shaft seal assembly
using the shaft seal extractor supplied in
the toolset. The extractor must fit
underneath the shaft seal. Press the arms
of the extractor together when turning the
bolt.
7. Turn pump into vertical position with shaft
pointing downwards.
