user manual

Groundsmaster 4100--D Page 5 -- 23 Electrical System

TEC--5002 Controller

Groundsmaster4100--Dmachines useaToroElectron-

ic Controller (TEC) to control the operation of the hy-

draulic cooling fan. The controller is attached to the

operatorplatformundertheconsolehousingcover(Fig.

34).

Logic power is provided to the controller as long as the

battery cables are connected to the battery. A 2 amp

fuse in a fuse holder near the battery provides circuit

protection for this logic power to the controller.

The TEC--5002 controller monitors the states of the fol-

lowing components as inputs: ignition switch, hydraulic

temperature sender, engine coolant temperature send-

er and cooling fan switch.

The TEC--5002 controller controls electrical output to

the engine cooling fan hydraulic valve solenoid coils

(speed and direction). Circuit protection for TEC--5002

outputs is provided by fuse F9 (7.5 amp).

Because of the solid state circuitry built into the TEC,

thereisnomethodtotestthecontrollerdirectly.Thecon-

troller may be damaged if an attempt is made to test it

with an electrical test device (e.g. digital multimeter or

test light).

1. Fuses 2. TEC location

Figure 34

Electrical

System