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Operating the machine, 7 ventilation – Retsch PP 25 User Manual

Page 24

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Operating the machine

24

Make sure that you do not have any fingers between the basic body
and the plunger!

Build up some pressure force by moving the hand lever (B) forwards and
backwards until the pellet (PR) and the pressure pieces are ejected from the
die tool.

Open the shut-off valve (H) by turning in an anti-clockwise direction.

Remove the pressing plate.

Fig. 14: Removing the pellet

Remove the pellet.

CAUTION

Risk of fingers being pinched

The plunger is loose! This means that there is a risk of the plunger (M) dropping
downwards when you take the die tool out.

Hold the plunger (M) securely when removing the die tool!

Fig. 15: The plunger falls down

Pos : 8. 16 /00005 Ü berschrif ten/ 1. 1 Ü bersc hrift en/ 1. 1 Übersc hrift en BD A/ 11 Entl üft en @ 4 \ mod_1322561086032_9. doc @ 25817 @ @ 1

5.7 Ventilation

Pos : 8. 17 /00010 Bedi enungsanleit ung en Kapitels ammlungen/ PP25/ 0015 Bedienung/ 15xx PP25 Modul Entl üft en @ 4\ mod_1322562738218_9. doc @ 25916 @ @ 1

Remove the die tool.

Close the side shut-off valve (H) by turning in a clockwise direction.

Move the pump lever (B) very slowly several times forwards and backwards
until the pressure cylinder (J) moves approximately 1-2 mm upwards.

Now open the shut-off valve in an anti-clockwise direction. This moves the
pressure cylinder downwards again.

M