Technical staff manual
17.3Pump dismantling
To dismount a pump it is necessary:
1)
switch the boiler off( see section 10.4, page 24);
2)
block inlet and output stop valves of the boiler, drain the heat carrier out of the boiler (see section 10.5,
page24) (if there are no stop valves, drain the heat carrier out of the whole heating system);
3)
put the casing and sealing cap off from the boiler (see p.17.1, page 41);
4)
by means of the turnkey 30 unscrew the nut 1 (see scheme.24) and put the pipe aside;
.
Scheme 21 . Pipe
dismantling
Scheme 22. Heat exchanger dismantling
Scheme 24. Dismantling the pump pipe 43