Metrohm 761 Compact IC - Manual (Page 187)

5.2 Maintenance and servicing
761 Compact IC
177
42
104 105 106 107 108 109 110 111 113
115
114
115
112
Fig. 19: Components of the pump head
42
116
A
116
117
117 B
C
112
112
Fig. 20: Replacement of the piston seal 112
42 Pump head (6.2824.100) 111 Piston guide sleeve (4.709.4370)
104 Screw (3.709.1100) for piston
cartridge 108
112 Piston seal (6.2741.000/6.2741.010)
105 Zircon piston (6.2824.070) with piston
shaft
113 Inlet valve (6.2824.090)
106 Spring retainer 114 Outlet valve (6.2824.080)
107 Spring (6.2824.050) for main piston or
Spring (6.2824.060) for auxiliary piston
115 Screw holder for valve
108 Piston cartridge (4.709.0760) 116 Special tool (6.2617.010) to remove the
piston seal 112
109 Piston guide sleeve (4.709.4380) 117 Special tool (6.2617.010) to install the
piston seal 112
110 Sapphire supporting ring (6.2824.030)