General Information; Operator's Manual; Kohler Engine Electrical Components; Toro Electronic Controller (Tec) - Toro Pro Force 44552TE Service Manual

General Information

Operator's Manual

Kohler Engine Electrical Components

Toro Electronic Controller (TEC)

Electrical System: General Information
Before performing any welding on the machine, turn the key switch
to the OFF position. To prevent damage to the machine electrical
system, disconnect the ground (-) cable from the engine when
welding on the chassis.
The Operator's Manual provides information regarding the operation, general
maintenance, and maintenance intervals for your Pro Force Debris Blower. Refer
to the Operator's Manual for additional information when servicing the machine.
When servicing or troubleshooting the engine electrical components, use the
correct engine service manual and troubleshooting manual. The Kohler engine
service and manual is available online, and on the Toro Service Reference flash
drive.
Wireless controlled Pro Force Debris Blowers (Models 44552, 44552TE, and
44553) use a Toro Electronic Controller (TEC) to manage machine electrical
functions. The TEC is a 2403 series microcontroller that monitors the condition
of various machine switches (inputs) and directs electrical power to control
appropriate machine functions (outputs) based on the state of the inputs. The
TEC works in conjunction with the Toro Wireless Modules (TWMs) to manage
power to the engine start relay and the nozzle control relays. The TEC also
manages power to the following Kohler engine components: governor control
unit, the fuel shut-off solenoid, and the ignition modules.
The TEC is attached to the machine control tower. Power for the TEC logic and
memory is available at all times (unswitched). The logic and memory circuit is
protected by a 2 Amp fuse (F−4). Power for the TEC outputs is available when
the main power relay is energized (key switch is in the ON or START position). A
pair of 7.5 Amp fuses (F−1 and F–2) protect the TEC output circuits.
The Toro Electronic Controller (TEC) and the Toro Wireless Modules (TWMs)
communicate with each other on a Controller Area Network (CAN) bus system.
Note: The Toro Electronic Controller (TEC) and the Toro Wireless Modules
(TWMs) used on the Pro Force Debris Blower are matched for correct machine
operation. If any of these components are replaced for any reason, system
software needs to be reloaded (contact an Authorized Toro Distributor for
assistance).
IMPORTANT
Page 5–2 Pro Force® Debris Blower
18237SL Rev A