Formeco Drester 120, Использование и обслуживание

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1. Remove, by unscrewing, the oil bleeding valve (1);
2. Place the collecting container (2) and rotate the machine; remove the cover and unscrew the loading plug
of the oil (3) to let the oil flow out.
3. Blow dry compressed air (4 ÷ 6 bar) in the plug to remove any formed debris.
4. Put the machine in a horizontal position and fill up the machine with new oil through the loading plug,
using a funnel. Leave about 0,5 litres of oil behind for the final top-up of the machine.
5.
Insert the plug and the cover again (8), and place the machine upright again
6.
Without installing the bleeding valve (9) and without loading the machine, turn the unit on at maximum
temperature. Having reached the maximum temperature, add slowly (in two or three times) the remain-
ing oil in the expansion vessel until the expansion vessel
(10)
is at the right level
.
7. Turn off the machine, and when is has cooled down, reinsert the bleeding valve (9).
At every oil change, the oil breather valve on the expansion vessel must be changed.
c.
Cleaning the electrical heater element
1. Rotate the unit 90°. Remove the lid of the heater unscrewing the security dowel using a hexagonal key of
2 mm
(1A) ;
2. Disconnect the electrical wires using a box spanner (2A) ;
3. Unscrew the element using a spanner of 90 mm. (3A) ;
4. Remove and clean the electrical heater element (4A) ;
5. Reinstall the electrical element using a Teflon ribbon for the sealing (5A) .