Metrohm 790 Personal IC - Manual (Page 168)

5.2 Maintenance and servicing
790 Personal IC
159
34 34 34 34
84 84 84 84 85 85 85 85 86 86 86 86 87 87 87 87 88 88 88 88 89 89 89 89 90 90 90 90 91 91 91 91 93 93 93 93
95 95 95 95
94 94 94 94
95 95 95 95
92 92 92 92
Fig. 17: Components of the pump head
34 34 34 34
96 96 96 96
A
96 96 96 96
97 97 97 97
97 97 97 97 B
C
92 92 92 92
92 92 92 92
Fig. 18: Replacement of the piston seal 92
34 34 34 34 Pump head (6.2824.100) 91 91 91 91 Piston guide sleeve (4.709.4370)
84 84 84 84 Screw (3.709.1100) for piston
cartridge 88 88 88 88
92 92 92 92 Piston seal (6.2741.000/6.2741.010)
85 85 85 85 Zircon piston (6.2824.070) with piston
shaft
93 93 93 93 Inlet valve (6.2824.090)
86 86 86 86 Spring retainer 4.709.0730 94 94 94 94 Outlet valve (6.2824.080)
87 87 87 87 Spring (6.2824.050) for main piston or
Spring (6.2824.060) for auxiliary piston
95 95 95 95 Screw holder for valve
88 88 88 88 Piston cartridge (4.709.0760) 96 96 96 96 Special tool (6.2617.010) to remove the
piston seal 92 92 92 92
89 89 89 89 Piston guide sleeve (4.709.4380) 97 97 97 97 Special tool (6.2617.010) to install the
piston seal 92 92 92 92
90 90 90 90 Sapphire supporting ring (6.2824.030)