User manual

Groundsmaster 4000--D/4010--D Page 5 -- 35 Electrical System
Toro Electronic Controllers (TEC)
Groundsmaster4000--Dand4010--Dmachinesusetwo
Toro Electronic Controllers (TEC) to control electrical
system operation. The controllers are attached to the
operator platform under the controller cover (Figs. 43
and 44).
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, engine oil pressure switch, flow divider switch,
Hi/Lowspeedswitch,hydraulictemperaturesender,en-
gine coolant temperature sender, engine cooling fan
switch and optional cruise control switches (if
equipped).
The TEC--5002 controller controls electrical output to
the TEC--5001 controller, hydraulic fan drive manifold
solenoid coils (speed and direction), fuel pump, engine
runsolenoid (hold coil), glow plug relay,start relay,high
temperaturewarninglight,diagnosticlight,audioalarm,
hydraulic 4WD manifold solenoid coil (flow divider), hy-
draulic traction manifold solenoid coil (Hi/Low speed)
and optional cruise control coil (if equipped). 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 deck position
switches.
The TEC--5001 controller controls electrical output to
thehydraulicPTOandliftmanifoldsolenoidcoils.Circuit
protectionforTEC--5001outputsisprovidedbythree(3)
7.5 amp fuses (F4--2, F4--3 and F4--4).
Because of the solid state circuitry built into the TEC
controllers,thereisnomethodto testacontroller direct-
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).
NOTE: The TEC controllers usedon the Groundsmas-
ter4000 and 4010 are matched for c orrect machineop-
eration. If either of these components are replaced for
any reason, system software needs to be repro-
grammed by your Toro Distributor.
IMPORTANT: Before performing welding on the ma-
chine, disconnect both positive and negative bat-
tery cables from the battery, disconnect wire
harnessconnectorfrombothofthe TECcontrollers
and disconnect the terminal connector from the al-
ternator.Thesestepswillpreventdamagetothema -
chine 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 controller
9. TEC--5002 controller
Figure 43
2
3
6
1
5
4
7
9
8
FRONT
RIGHT
1. TEC--5001 controller
2. TEC--5002 controller
3. Operator seat
Figure 44
1
2
3
Electrical
System