Metrohm 709 IC Pump - Manual (Page 36)

4 Notes – Maintenance – Faults
709 IC Pump
28
18
60 61 62 63 64 65 66 68 69
70
70
71
67
Fig. 9: Components of the pump head
18
72
A
72
73
73 B
C
68
68
Fig. 10: Replacement of the piston seal 68
18 Pump head (6.2824.040/6.2824.100) 67 Piston guide sleeve (4.709.4370)
60 Screw for piston cartridge 64 68 Piston seal (6.2741.000/6.2741.020)
61 Piston with piston shaft (6.2824.070 zircon
piston or 6.2824.000 sapphire piston)
69 Inlet valve (6.2824.020/6.2824.090)
62 Spring retainer 70 Outlet valve (6.2824.010/6.2824.080)
63 Spring (6.2824.050) for main piston or
Spring (6.2824.060) for auxiliary piston
71 Screw holder for valve
64 Piston cartridge (4.709.0760) 72 Special tool (6.2617.010) to remove the
piston seal 68
65 Piston guide sleeve (4.709.4380) 73 Special tool (6.2617.010) to install the
piston seal 68
66 Sapphire supporting ring (6.2824.030)