Ring 71 of the auxiliary piston (right-hand pi, Suddenly jumpin, The s – Metrohm 761 SD Compact IC User Manual
Page 103: Must be undone very carefu, Stons 69, Rewed into the seal 76 which
6.2 Maintenance and servicing
761 SD Compact IC / Instructions for Use 8.
761.1043
95
Pump head 6.2824.100
68
69
Zirconium piston
6.2824.070
with pis-
ton shaft
70
71
Spring 6.2824.050 (for main piston) or
Spring 6.2824.060 (for auxiliary piston)
72
Piston cartridge 4.709.0760
73
Piston guide sleeve 4.709.4380
74
Sapphire supporting ring 6.2824.030
75
Piston guide sleeve 4.709.4370
76
Piston seal 6.2741.020
77
Inlet valve 6.2824.090
78
Outlet valve 6.2824.080
79
Screw holder for valve
80
Special tool 6.2617.010 for removing the
piston seal
81
Special tool 6.2617.010 for
fitting the piston seal
•
Use the special tool 81 to fit a new piston seal 76.
•
First firmly fit the new seal by hand into the recess in the tool
81 (see Figure 16B). The seal spring must be located on the
outside.
•
Then insert the tool 81, together with the seal, in the pump
head 24 and use the tool 80 to press the seal into the pump
head recess (see Figure 16C).
The seal surface in the pump head
may not be damaged (avoid
contact with tool)!