Toro Groundmaster 31900, Service Manual

Page: 204 / 355

Fuses
g305067
Figure 78
1. Operator’s control console 7. Fuse FB1-F3
2. Access cover 8. Fuse FB1-F4
3. Fuse block 1 9. Fuse FB2-F1
4. Fuse block 2 10. Fuse FB2-F2
5. Fuse FB1-F1 11. Fuse FB2-F3
6. Fuse FB1-F2 12. Fuse FB2-F4
Most of the individual control circuits are protected by a variety of fuses found
in the main fuse blocks located in the operator’s control console. A number of
in-line fuses are integrated into the machine wire harness; refer to
In-line Fuses
(page 6–13) . Machines with a cab include additional control circuits protected by
fuses found in the cab power supply harness and in the cab fuse block located
in the cab control panel. Machines with optional lighting kits include additional
control circuits protected by fuses found in a fuse block located in the steering
column control pod, and in the lighting kit wire harness. Refer to
Appendix A
(page A–1) for specific circuit information.
Fuse Identification and Function
Main Fuse Blocks
•
FB1-F1: (models 31900 and 31901 = 20 Amp, models 31902, 31903, 31907
and 31909 = 15 Amp) supplies unswitched power to the key switch.
•
FB1-F2: (models 31900 and 31901 = 15 Amp, models 31902, 31903, 31907
and 31909 = 10 Amp) supplies switched power to the TDM controller Key
Start circuit and the start interlock relay switch.
•
FB1–F3: (10 Amp) supplies switched power to the TDM controller Key Run
circuit.
•
FB1–F4: (15 Amp) supplies switched power to the TDM controller logic and
output circuits.
•
FB2–F1: (20 Amp) supplies switched power to the glow relay coil, the
alternator IG circuit, the fuses FB1–F3 and FB1–F4, the cutting unit raise
limit switch, the traction neutral switch, the expansion port, the telematics
Electrical System: Testing the Electrical Components Page 6–12 Groundsmaster ® 3200, 3300 and 3310
19240SL Rev A