Toro Electronic Controllers (Tec) - Toro Groundsmaster 4500-D Series Service Manual

Toro Electronic Controllers (TEC)

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1. Operator platform
2. TEC-5004 (TEC 1)
Electrical System: Component Testing
Groundsmaster 4500−D and 4700−D machines use a Toro Electronic Controller
(TEC−5004) to control electrical system operation. Groundsmaster 4700−D
machines use an additional TEC−5004 controller for electrical control of the rear
cutting decks (PTO and lift/ lower functions). The controllers are microprocessor
controlled that sense the condition of various switches and sensors (inputs). The
controllers then direct electrical power to control appropriate machine functions
(outputs) based on the input state. The controllers are attached to the operator
platform under the operator seat
Logic power is provided to the controllers as long as the battery cables are
connected to the battery. A pair of 2 amp fuses (B5 for TEC 1 and C5 for TEC 2)
provide circuit protection for this logic power to the controllers.
Figure 209
3. TEC-5004 (TEC 2) (GM4700-D only)
(Figure 209).
Page 6–48 Groundsmaster ® 4500-D/4700-D
19245SL Rev A