17
d) replace the hydraulic oil and relevant filter (code 01000133, tav. 4--5--6) every 8000 working hours (Fig. 21);
Fig. 21
e) the hydraulic oil must have the following chemical--physical features: ISO 46, 3.5° -- 4° Engler at 50° C -- for instance:
- SHELL Tellus 46; - ESSO Nuto H 46; - TOTAL Azolla 46; - AGIP Oso 46.
f) we recommend to collect the burnt oils in the suitable tanks to be delivered to the companies entitled for their collection.
1º TROUBLE: On pressing the push- button the arm does not come down:
a) Check the lighting upof the leds D25 and D28 onthe printedcircuit card (code 02E03947, tav. 7). Ifnot, checkthe fuses F2 andF3 onthe
printed circuit board (Fig. 22).
Fig. 22
D28
F2
D25
b) If the leds D25 and D28light up regularly, check the lightingup ofthe ledD37 onthe printedcircuit board(code 02E03947,tav. 7).If theled
D37lightsupregularly,checkthewiringbetweentheelectromagnetandtheprintedcircuitboardaswellastheelectromagnet(02001746,tav.4--5--6)
Check the correct voltage of 40/45V arrives at the electromagnet (Fig. 23).
Fig. 23
D37
Machine equipped with three pushbuttons cutting power selector and two potentiometers (S100 Series)
c) IftheledDL5doesnotlightup,but theledsD37(correspondingtothemicroswitchoftherighthandle)andtheledcorrespondingtothepush--but-
tonpressedontheleftbox(D29orD30orD31)lightup regularlycheck andif necessaryreplace thefuse (code02001434, tav.7) andat lastthe
printedcircuitboard(code02E03947,tav.7).IftheledsD29,D30,D31andD27donotlightupregularly,checkthewiringbetweenthepush--button
micro switches and the printed circuit board as well as the microswitches (code 02E03927, tav. 2) (Fig. 24).
Machine equipped with pushbuttons and potentiometer (SE Series)
c) IftheledD37 doesnotlightup, butthe ledsD27 andD31lightup regularly,check andif necessaryreplace thefuse (code02001434, tav.7)
andatlasttheprintedcircuitboard(code02E03947,tav.7).IftheledD27andD31donotlight upregularly, checkthe wiringas wellas themicro
switches (code 02E03927, tav. 2) (Fig. 24).
Fig. 24
(1A)
D37
D31
D27
D29
2º TROUBLE: Irregular die incision on the pad between two cuts
a) Checkthecorrectfunctioningofthehydraulicdistributor’svalvestems(codes:01011904+01011909,tav.4--5--6).Checkalsothatthereisno
dirt preventing good functioning. Check the intervention of the pressure switch (code 02003639, tav. 4--5--6) (Fig. 25).
137 Troubleshooting
GB