2. Place the tool and bellows on a firm, flat surface.
3. Push down on the metallic ring using four fingers until the orifice grips the end of the tool
on its own. The tool, which keeps the end of the bellows open, enables the bellows to be
slid back into position.
4. Pull on the metallic ring at the end of the bellows until it can go no further; moderate force
is required. When refitting the bellows, support the piston by the head, not by the shaft.
Figure 45
Refitting
Figure 46
Pull on the Metallic Ring
5. Remove the tool and check that end of the bellows (with the metallic ring) is correctly
seated against the piston collar.
Metallic
Ring
Collar
Figure 47
Metallic Ring and Piston Collar Seating
Piston Rinsing Chamber
Change the rinsing liquid at least once a week.
For details, refer to Piston Rinsing Procedure on page 36.
47
333/334 HPLC PUMPS | USER’S GUIDE
PISTON AND BELLOWS
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