Thermo Scientific Dionex ICS-5000 Operator's Manual page 334

Dionex ICS-5000 Operator's Manual
6. To prevent contamination of pump parts, wear cleanroom gloves while
disassembling and reassembling the pump head.
Never disassemble the pump head with bare hands. Even minute
particles of dust, dirt, etc., on the check valves or piston can
contaminate the inside of the pump head and result in poor pump
performance.
7. Disconnect all tubing connections to the pump head with the defective
piston seal.
8. The primary and secondary pump heads have different components.
When disassembling a pump head, refer to
head or
Piston
1
P/N 068646 (Capillary)
P/N 062082 (Analytical)
Seal Retainer
2
P/N 068627 (Capillary)
P/N 062092 (Analytical)
Piston Seal Wash Seal
3
P/N 068628 (Capillary)
P/N 063382 (Analytical)
Figure 9-6. DP/SP Pump: Primary Pump Head Assembly
318
Figure 9-7 for a secondary pump head.
4
3
2
1
Seal Wash Body
4
P/N 074446 (Capillary)
P/N 062064 (Analytical)
5
Backup Ring
6
P/N 074371
(Capillary only)
Main Piston Seal
7
P/N 075493 (Capillary)
P/N 064946 (Analytical)
Figure 9-6
9
8
5
7
6
10
Primary Pump Head
8
P/N 074447 (Capillary)
P/N 062083 (Analytical)
Outlet Check Valve Assembly
9
P/N 044540 (Capillary)
P/N 045721 (Analytical)
Inlet Check Valve Assembly
10
P/N 044541 (Capillary)
P/N 045722 (Analytical)
for a primary pump
Note: Each check
valve assembly
includes a valve
body ( ) and a B
cartridge ( ). C
Doc. 065342-06 12/11