Pump P9H
1
2
3
4
5
6
7
12
9
8
10
11
13
Description
Part
Description
Part
Piston seal
7
Piston
1
Outlet check valve
8
Return spring
2
O-ring
9
Pump membrane housing
3
Purge valve
10
Star screws
4
Star screws
11
O-ring
5
Inlet check valve
12
Support washer
6
Star screws
13
Disassemble the pump head
Action
Step
Make sure that no run is in progress on the instrument.
1
Disconnect the tubing from the pump head, and disconnect the pump inlet
tubing.
2
154
ÄKTA avant Operating Instructions 29101556 AB
7 Maintenance
7.2 Replace pump piston seal, O-rings, and rinse membrane of Pump P9 or Pump P9H