Toro Greensmaster TriFlex 3320/3420 Service Manual page 196

Fuse Block (Greensmaster 3420 with Serial Number Above 312000000)
The fuse block on Greensmaster 3420 machines is at-
tached to the frame under the operator seat (Fig. 46).
In addition to the fuses in the fuse block, a 50 amp
maxi--fuse is included in the wire harness. This fuse pro-
tects the engine cooling fan circuit and resides in a fuse
holder under the right side cover next to operator seat.
Fuse Identification and Function
Use Figure 47 to identify each individual fuse and its cor-
rect amperage. Fuses for Greensmaster 3420 ma-
chines with a serial number above 312000000 have the
following function:
Right Fuse 1 (2 Amp): Protects TEC logic and igni-
tion switch power supply circuits.
Right Fuse 2 (7.5 Amp): Protects TEC output power
supply for start relay, engine run solenoid, fuel pump
and glow relay.
Right Fuse 3 (7.5 Amp): Protects TEC output power
supply for fan relay, cutting reels engage solenoid, lift
enable solenoid (S1) and lift/lower solenoid (S2).
Right Fuse 4 (7.5 Amp): Protects TEC output power
supply for lift solenoids S3 (front cutting units) and S4
(center cutting unit).
Left Fuse 1 (10 Amp): Protects power supply for
start relay and starter solenoid.
Left Fuse 2 (10 Amp): Protects power supply for
hour meter, InfoCenter display, proximity switches
(parking brake, neutral and mow) and backlap switch
indicator light.
Left Fuse 3 (15 Amp): Protects power supply for op-
tional Turf Defender
optional lights.
Left Fuse 4: Not used.
Fuse Testing
Make sure that ignition switch is OFF and key is re-
moved from switch. Remove fuses from the fuse block
for testing. Fuse should have continuity between fuse
terminals.
Electrical System
TM
Leak Detector system and
1. Seat base (raised)
LEFT RIGHT
15A
10A
10A
Page 6 - - 46
1
2
Figure 46
2. Fuse block
7.5A 4
LIGHTS
3
7.5A
LEAK DETECTOR
15A
2
7.5A
RUN
1
2A
10A
START
10A
Figure 47
Greensmaster 3320/3420
LIFT REEL
OVER TEMP
7.5A
REEL ENGAGE
LIFT/LOWER
FAN
7.5A
START/RUN
DIAG. LIGHT
GLOW
7.5A
TEC LOGIC
POWER
2A