Greensmaster 3320/3420 Page 6 -- 45 Electrical System
Fuse Block (Greensmaster 3420 with Serial Number Below 312000000)
The fuse block on Greensmaster 3420 machines is at-
tached to the frame under the operator seat (Fig. 44).
In addition to the fuses in the fuse block, a 50 amp
maxi--fuseisincludedinthewireharness.Thisfusepro-
tects theengine cooling fan circuitand residesin a fuse
holder under the right side cover next to operator seat.
Fuse Identification and Function
UseFigure45toidentifyeachindividualfuseanditscor-
rect amperage. Fuses for Greensmaster 3420 ma-
chines have the following function:
Right Fuse 1 (2 Amp): Protects TEC logic and igni-
tion switch power supply circuits.
RightFuse2(7.5Amp):ProtectsTECoutputpower
supplyforstartrelay,enginerunsolenoid,fuelpump,
glowrelay,glowplugindicatorlightandconsolediag-
nostic light.
RightFuse3(7.5Amp):ProtectsTECoutputpower
supplyforfanrelay,cuttingreelsengagesolenoid,lift
enable solenoid (S1) and lift/lower solenoid (S2).
RightFuse4(7.5Amp):ProtectsTECoutputpower
supply for lift solenoids S3 (front cutting units), S4
(center cutting unit) and over temperature indicator
light.
Left Fuse 1 (10 Amp): Protects power supply for
hourmeter,lowengineoilpressureindicatorlight,al-
ternator indicator light and proximity switches (park-
ing brake, neutral and mow).
Left Fuse 2 (15 Amp): Protects power supply for
start relay and solenoid.
LeftFuse3(15Amp):Protectspowersupplyforop-
tional Turf Defender
TM
Leak Detector system and
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.
1. Seat base (raised) 2. Fuse block
Figure 44
1
2
Figure 45
RUN
STARTER
LIGHTS
LIFT REEL
REEL ENGAGE
START/RUN
DIAG. LIGHT
GLOW
LEAK DETECTOR
LIFT/LOWER
FAN
OVER TEMP
7.5A
7.5A
7.5A
2A
15A
10A
15A
TEC LOGIC
POWER
RIGHT
4
3
2
1
LEFT
15A
15A
10A
7.5A
7.5A
7.5A
2A
Electrical
System
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