Fuses - Toro Reelmaster 3550-D Preliminary Service Manual

Fuses

The fuse blocks are located in the power center under
the hood on the right side of the machine.
Fuse Identification and Function
Use the fuse decal (Fig.NO TAG) and fuse block shown
in Figure 16 to identify each individual fuse and its cor-
rect amperage. The fuses have the following functions
and are listed from rear fuse to front fuse.
Upper, rear fuse 1 (2 amp) protects logic power circuit
to the TEC controller.
Upper fuse 2 (7.5 amp) protects TEC output power
supply for start relay, engine run solenoid, fuel pump,
glow relay, glow plug indicator light and console diag-
nostic light. NOTE: If this fuse is faulty, a fault should be
displayed by the diagnostic light on the control panel
(see Diagnostic Light in the Troubleshooting section of
this chapter).
Upper fuse 3 (7.5 amp) protects TEC output power
supply for cutting reels engage solenoid (PRV), lift/lower
enable solenoid (S1) and lift/lower solenoid (S2).
NOTE: If this fuse is faulty, a fault should be displayed
by the diagnostic light on the control panel (see Dia-
gnostic Light in the Troubleshooting section of this
chapter).
Upper, front fuse 4 (7.5 amp) protects TEC output
power supply for lift solenoid S3 (front cutting units), lift
solenoid S4 (rear cutting units), alternator indicator light
and over temperature indicator light. NOTE: If this fuse
is faulty, a fault should be displayed by the diagnostic
light on the control panel (see Diagnostic Light in the
Troubleshooting section of this chapter).
Lower, rear fuse 1 (15 amp) protects switched power
supply circuit (e.g. parking brake switch, hour meter, al-
ternator, low oil pressure light).
Lower fuse 2 (10 amp) protects engine starter circuit.
Lower fuse 3 (10 amp) protects power point circuit.
Lower, front fuse 4 (10 amp) protects worklight circuit.
Reelmaster 3550--D
Fuse Testing
Remove cover from control panel to access fuse blocks.
Turn ignition switch to the ON position (do not start en-
gine). With the fuse installed in the fuse block, use a
multimeter to verify that 12 VDC exists at both of the ter-
minal test points on the fuse. If 12 VDC exists at one of
the fuse test points but not at the other, the fuse is faulty.
If necessary, make sure that ignition switch is OFF and
key is removed from switch. Remove fuse from fuse
block and check that fuse has continuity across the fuse
terminals.
REAR
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Figure 16
Electrical System
FRONT