Toro 4100-D service manual Fusible Links

Fusible Links

The Groundsmaster 4100--D uses five (5) fusible links for circuit protection. Three (3) of these fusible links are located in a harness that connects the starter B+ termi- nal to the wire harness (Fig. 51). An additional fusible link is used that connects the starter B+ terminal to the alternator B+ terminal (Fig. 52). The remaining fusible link is included in the wire harness and connects the starter terminal to the engine run solenoid pull coil. If any of these links should fail, current to the protected circuit will cease. Refer to the Electrical Schematic and Circuit Diagrams in Chapter 9 -- Foldout Diagrams for addition- al circuit information.

Testing

Make sure that ignition switch is OFF. Disconnect nega- tive battery cable from battery terminal and then discon- nect positive cable from battery (see Battery Service in the Service and Repairs section of this chapter). Locate and unplug fusible link connector. Use a multimeter to make sure that continuity exists between the fusible link terminals. If a fusible link is open, replace the link.

After testing is complete, make sure that fusible link is securely attached to engine component and wire har- ness. Connect positive battery cable to battery terminal first and then connect negative cable to battery.

FUSIBLE LINK

FUSIBLE LINK

FUSIBLE LINK

Figure 51

J1	RED	J2
SP1
STARTER		ALTERNATOR
B+	SP1	B+
J1		J2

Figure 52

System

Electrical

Groundsmaster 4100--D Page 5 -- 33 Electrical System