13. Replacement
13.1 Replacing the discharge tube
1. Instruments with a recirculating valve should be set to ‚Recirculate',
and the valve lever pulled upwards to remove (Fig. 1).
2. Slide the discharge tube housing all the way up, then pull it
forward with gentle up and down motions (Fig. 2).
3. Hold coupling piece of the new discharge tube and pull housing up
(Fig. 3). Push housing into the valve block until it meets the stop.
4. Slide the discharge tube housing all the way down.
5. For instruments with a recirculation valve, pull up the valve lever to
the ‚Recirculate' position, and press it in tightly.
13.2 Replacing valves
13.2.1 Discharge valve
1. After disassembling the discharge tube (see ‚Replacing the
discharge tube' above), use the mounting tool to unscrew the
discharge valve (Fig. 1).
2. Screw in the new discharge valve first by hand, then tighten it
securely with the mounting tool (the threads should no longer be
visible) (Fig. 5).
Caution!
Always install the valve intended for the particular type and size
of instrument! (see page 50 for ‚ordering information').
1
2
3
4
5
45