Ivoclar Vivadent EP 600 Combi - Manual (Page 29)

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7.6 Changing the press plunger
In order to facilitate the changing of the
press plunger, we recommend lowering the
press plunger manually by using the
corresponding option in the menu
"Maintenance".
1. Remove the screws (55) and the press
drive cover (52) while the furnace head is
closed.
2. Loosen the terminal screw (57) for the
press plunger with approx. half a turn.
3. Open the furnace head with the corre-
sponding key (112). Once the furnace
head is completely open, switch off the
furnace, disconnect the power, and allow
the furnace to cool to room temperature.
4. Move the press plunger (56) into the
firing chamber by pushing it with one
hand and pulling it with the other while
rotating it slightly.
Contraindication
Take care not to buckle the
thermocouple located in the upper
part of the firing chamber.
5. Insert the new press plunger (56) with
the red mark into the guide bush with
the phasing (inclination) first. Push the
plunger into its split taper socket (6) by
rotating it slightly. Tighten the screw (57).
6. Reconnect power and switch on the
furnace with the I/O switch.
Never reach into the press drive
during operation. There is a risk of
crushing.
Wait until the furnace head closes automati-
cally. Remount the press drive cover (52) and
tighten the corresponding screws.
7.7 Changing the firing tray
If you use the EP600 Combi as a ceramic
furnace, place the firing tray (150) in the
firing plate (50) prior to starting the firing
cycle.
Important information
For the firing cycles, always use the
firing tray (150) in order to ensure
optimum temperature conditions
within the furnace.
55
56
150
50
57