Groundsmaster 4100--D/4110--DPage 5 -- 34Electrical System
Toro Electronic Controllers (TEC)
Groundsmaster4100--Dand4110--Dmachinesusetwo
Toro Electronic Controllers (TEC) to c ontrol electrical
system operation. The controllers are attached to the
operator platform under the controller cover (Fig. 41).
Logicpoweris provided to thecontrollersaslong as the
battery cables are connected to the battery. A pair of 2
ampfuses(F3--1andF4--1)providecircuitprotectionfor
this logic power to the controllers.
The TEC-- 5002 master controller monitors the states of
the following components as inputs: ignition switch,
parking brake switch, traction neutral switch, seat
switch,engineoilpressureswitch,Hi/Lowspeedswitch,
hydraulictemperatures ender,engine coolant tempera-
ture sender and engine cooling fan switch. The
TEC--5002 also monitors the optional flow divider and
cruise control switches if the machine is equipped with
those options.
TheTEC--5002mastercontrollercontrolselectricalout-
put to the hydraulic fan drive manifold solenoid coils
(speed and direction), fuel pump, engine run solenoid
(holdcoil),glow plug relay,startrelay, high temperature
warninglight,diagnosticlight,audioalarmandhydraulic
traction manifold solenoid coil (Hi/Low speed). The
TEC--5002 also controls the optional hydraulic 4WD
manifold solenoid coil (flow divider) and cruise control
coilifthemachineisequippedwiththoseoptions.Circuit
protectionforTEC--5002outputsisprovidedbythree(3)
7.5 amp fuses (F3--2, F3--3 and F3--4).
The TEC--5001 slave controller monitors the states of
thefollowingcomponentsasinputs:ignitionswitch,cut-
ting deck lift switches, PTO switch and wing deck posi-
tion switches.
The TEC--5001 slave controller controls electrical out-
putto the hydraulic PTOand lift manifold solenoid coils.
Circuit protection for TEC--5001 outputs is provided by
three (3) 7.5 amp fuses (F4--2, F4--3 and F4--4).
Because of the solid state circuitry built into the TEC
controllers,thereisnomethodto testacontrollerdirect-
ly. A controller may be damaged if an attempt is made
to test it with an electrical test device (e.g. digital multi-
meter or test light).
IMPORTANT: Before performing welding on the ma-
chine, disconnect both negative and positive
cables from the battery, disconnect wire harness
connectorfrom bothof the TECcontrollers anddis-
connect the terminal connector from the alternator.
These steps will prevent damage to the machine
electrical system.
1. Controller cover
2. Screw (2 used)
3. Flat washer (2 used)
4. Flange nut (8 used)
5. Front cover mount
6. Cap screw (8 used)
7. U--nut (2 used)
8. TEC--5001
9. TEC--5002
Figure 41
FRONT
RIGHT
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3
1
6
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4
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