Toro Electronic Controller (Tec) - Toro Reelmaster 7000 Service Manual

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Toro Electronic Controller (TEC)

The Reelmaster 7000 uses a Toro Electronic Controller
(TEC) to monitor the condition of various switches (in-
puts) and then directs power output to allow certain ma-
chine functions. The controller is located under the
operator seat (Fig. 49). The handheld Diagnostic Dis-
play (see Special Tools in this chapter) with the correct
overlay should be used when checking inputs and out-
puts of the controller used on your Reelmaster (see
Troubleshooting in this chapter).
Inputs from the ignition, traction neutral, parking brake,
PTO, seat, cutting unit lift, mow/transport, engine cool-
ing fan, backlap, reel position, hydraulic temperature,
engine oil pressure and engine coolant switches are all
monitored by the controller.
Current output to the mow circuit hydraulic valve sole-
noid coils, lift circuit hydraulic valve solenoid coils and
engine components (glow plug relay, start relay, fuel
pump and engine run solenoid) are controlled based on
the inputs received by the controller.
Because of the solid state circuitry built into the control-
ler, there is no method to test the controller directly. The
controller may be damaged if an attempt is made to test
it with an electrical test device, such as a digital multime-
ter.
IMPORTANT: Before performing any welding on the
machine, disconnect both positive and negative
battery cables from the battery, disconnect the wire
harness connector from the TEC controller and dis-
connect the terminal connector from the alternator.
This will prevent damage to the electrical system of
your Reelmaster.
Reelmaster 7000
Page 5 - - 35
1
Figure 49
1. TEC controller
Electrical System

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