room System 159Ser e SMain Broom SystemFunctional Description%\ XVLQJ WKH OHIW OHYHU RQ WKH GDVKERDUG WKH PDLQ EURRP VXSSRUW V\VWHP ORZHUV EHFDXVH LW LV UHOHDVHG E\a metal cable; the broom is kept pressed to the ground by two gas springs that ensure the contact with theground at all times.The electric motor transmits the motion to the main broom by means of a drive belt connected to an hexagonaldriver that supports the broom.The machine must be moving otherwise the main broom motor does not run.7KHIURQWVNLUWOLIWLQJSHGDODOORZVWRFROOHFWPHGLXPVL]HZDVWHPDWHULDOV FDQVER[HVHWF 7KHIURQWVNLUWPXVWEHOLIWHGRQO\ZKHQQHFHVVDU\EHFDXVHLWDIIHFWVWKHRSHUDWLRQRIWKHGXVWFRQWUROV\VWHPThe main broom motor (M4) is supplied by the electromagnetic switch (ES1) and protected by the fuse (FA).The electromagnetic switch (ES1) is activated by the dashboard electronic board (EB2) according to the infor-PDWLRQUHFHLYHGE\VHQVRU 6 PDLQEURRPFRQWUROOHYHUSRVLWLRQ PDFKLQHPRYLQJVLJQDO LQIRUPDWLRQWKDW(%UHFHLYHVIURP(% OLIWHGKRSSHUVLJQDOEDWWHU\YROWDJH VHH'DVKERDUG(OHFWURQLF%RDUG6SHFLÀFDWLRQVstep d).7KHIXVH )$ DFWLYDWHVLQFDVHRIVKRUWFLUFXLWRUEORFNHGURWRUEXWLQFDVHRIRYHUORDGWKHGDVKERDUGHOHF-WURQLFERDUG (% UHDGVWKHYROWDJHGURSRQWKHIXVHWKXVGHDFWLYDWLQJ(6EHIRUHWKHIXVHFDQDFWLYDWH VHH0DLQ%URRP0RWRU3URWHFWLRQLQ'DVKERDUG(OHFWURQLF%RDUG6SHFLÀFDWLRQV 7KHDFWLYDWLRQRIDQHOHFWURQLFprotection is indicated by the main broom overload warning light (A).AP200235Wiring DiagramCONTROL PANEL ELECTRONIC BOARD (EB2)J1.1 - Electronic board power supply +J1.4 - Broom fuse voltage drop reading +J1.5 - Broom fuse voltage drop reading -J1.2 - Broom activation lever signalJ1.10 - Broom electromagnetic switch power supplyJ1.9 - Electronic board power supply -MAIN BROOMELECTROMAGNETICSWITCH (ES1)DISPLAY ELECTRONICBOARD FUSE (F3)MAIN BROOMMOTORMAIN BROOMFUSE (FA)MAIN BROOMELECTROMAGNETICSWITCH (ES1)MAIN BROOM LEVERSENSOR (S2)POSITIVE SIGNAL(FROM MACHINE ON K4 )BATTERY NEGATIVE TERMINALVM4P200168