WORKSHOP MANUAL
EDITION
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124
The electrical components are connected with cables, integrated in a fully insulated wiring, so that
they are protected against wear, contamination and mechanical stress.
The various components and users are connected to the cables with single connectors or “faston”
terminals, or with multiple contact connectors.
The electrical system includes several circuits responsible for the safety of the machine, in which
there are microswitches and relays, interconnected in order to prevent incorrect operations.
The wiring diagrams, shown in the specific section of this chapter, allow a quick identification of
each component and its correlation with the other components of the system.
9.1.1 Introductory note ...........................................................................102
9.1.2 Safety regulations ..........................................................................103
9.1.3 Equipment .....................................................................................103
9.1.4 Electrical measure gauges ............................................................104
9.1.5 Electrical measurements ...............................................................105
9.2.1 Diagnosis of electrical system problems ........................................105
9.3.1 Battery ...........................................................................................108
9.3.2 Checking the switches and micro switches function ......................110
9.3.3 Replacing the control switches ......................................................112
9.3.4 Replacement of the starter block. ..................................................112
9.3.5 Seat switch (Operator presence) ...................................................112
9.3.6 Front socket ...................................................................................113
9.3.7 Starter solenoid .............................................................................113
9.3.8 Relay location and function ............................................................114
9.3.9 Checking the function of the relays ................................................116
9.3.10 Fuse location and function .............................................................117
9.3.11 Front light replacement ..................................................................117
9.3.12 Diagnostics of electromagnetic clutch problems ............................118
9.3.13 Checking the function of the electromagnetic clutch ......................119
9.3.14 Bluetooth module ..........................................................................120
9.4.1 Wiring diagram for Stiga - B&S engines .........................................122
9.4.2 Wiring diagram for Honda engines ................................................123
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