Agilent Technologies G1157A, User Manual

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28 Agilent 1200 Series Valves
3 Maintenance, Repair, and Troubleshooting
Maintenance and Repair
Replacing the stator face and the rotor seal for standard valves (G1157A,
G1158A, G1159A, G1160A)
Disassembling the valve head
1 Use the Hex Key to remove the Stator Screws (1) from the Stator Head (2).
2 Disassemble the Stator Head and Stator Face (5) from the Stator Ring (4).
The Stator Face usually remains on the Stator Head.
3 Remove the three Stator Ring Screws (3) and take off the Stator Ring (4).
4 Remove the Rotor Seal(6) from the Valve Body(7). The Rotor Seal is
mounted on three pins, and can be pulled off.
Reassembling the valve head
1 Mount the new Rotor Seal (6) with the slots facing the Stator Head (2). The
three pins (8) on the Shaft Assembly fit into the matching holes(9) in the
Rotor Seal only one way.
Figure 9 Valve head assembly
1
2
3
5
7
4
6