Hyd-Mech PH 211, Use And Maintenance Manual

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Use and maintenance manual PH211
Protection against accidental contact with the blade
1. Metal guard screwed to the rear blade guide head (machine side);
2. metal guard screwed to the front blade guide head (operator side);
3. front head sliding support: when the head is at maximum aperture, the sup-
port ensures that the blade is covered, leaving free only the part of the blade
engaged in the actual cutting, in accordance with Presidential Decree no.
547/55, art. 108;
4. hinged protective cover over blade, fitted with “removable” closing devices;
5. blade guide plates completely covering the blade teeth;
6. Electric limit switch for stopping the band at the cutting head stroke end (HB
models only).
5
1
4
3
2
6
Electrical equipment
In accordance with Italian standard CEI 60204---1, April 1998, derived from
European Standard EN 60204---1 publication IEC 204---1, 1997:
H
Access to electrical control panel limited by screws and panel---lock device,
allowing panel to be opened only after the electricity supply has been turned
off;
H
24 Vac Control voltage for actuators, in accordance with chapter 6 or Euro-
pean Standard “Control and indication circuits”, paragraph 2 “Control Cir-
cuits” sub---section 1 “Preferential voltage values for control circuits”;
H
plant short---circuit protection by means of rapid fuses, earthing of all plant
parts connected with work as well as all foreseeable accidental contact; a ther-
mal---magnetic overload cutout switch shuts down the motor;
H
protection from accidental start---up by a minimum voltage relay in case of
power failure.