Tetra Pak HOYER COMET N, Manual

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7-4
Tetra Pak
Hoyer
CN 02 G A 02
Fig. 7.3
2
4
5
3
1
5
2
1
4
3
1
6
Fig.7.2
7.4 Doser maintenance
Periodically check the efficiency of the dosers.
Proceed as follows:
1 - Shut off the compressed air supply;
2 - Slacken the screws holding the doser retaining
bar;
3 - Remove the doser;
4 - Dismantle the doser:
- unscrew the bottom ring nut (Pos. 1, Fig.
7.2);
- open the clamp joining the lower and upper
parts (Pos. 2, Fig. 7.2);
- extract the doser piston shaft (Pos. 3, Fig.
7.2).
With the doser dismantled, check the
efficiency of the O-rings (Pos. 4-5, Fig. 7.2)
on the stem.
If they are worn, ice cream mix will leak from
the top of the doser.
5 - Wash using the recommended products shown
in the table and reassemble.
7.4 Topping maintenance
Every day, at the end of the work cycle, send
lukewarm water through the feed pipe through
the metering pump.
Periodically, and whenever it is necessary,
remove the dispenser terminals (Pos.1, Fig.7.3)
as well as the cap (Pos.2, Fig.7.3).
When the dispenser has been taken out, check the
efficiency of the gaskets (Pos.4-5-6, Fig.7.3).
Wash with proper products (Refer to the washing
table), reassemble.