Service Manual
Groundsmaster 360 Page 5 - 15 Electrical System
(Rev. A)
TEC Logic Chart ( Machines with 4WD)
Each line of the following chart identifies the necessary
component position (INPUTS) in order for the TEC to
energize t he appropriate OUT PUTS for machine opera-
tion.
Example: To start the engine with no operator in the
seat, when the ignition key is in start, the traction pedal
is in neutral and the parking brake is applied, the glow
plugs and other necessary engine starting components
will be energized.
X
INPUTS
MACHINE FUNCTION
Preheat
Start (No Operator in Seat)
Start (Operator in Seat)
Run (No Operator in Seat)
Run (Operator in Seat)
Lower Cutting Deck (or Implement)
Mow (Cutting Deck/Implement Lowered)
Raise Cutting Deck (or Implement)
Diagnostic Light Fault Retrieval
Clearing Faults (From Retrieval Mode)
Ignition Key in RUN
Ignition Key in START
Traction Pedal in NEUTRAL
Seat Occupied
Parking Brake Applied
Normal Coolant Temperature
Lift Switch Pressed for Lower
Lift Switch Pressed for Raise
PTOSwitchinON
OUTPUTS
Lift Manifold SV1 Energized (Deck Lift)
Lift Manifold SV2 Energized (Deck Float)
PTO Solenoid Energized
Fuel Pump and Engine Run Solenoid Hold Coil Energized
Engine Start (Run Solenoid and Start Solenoid Energized)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
XX
X
X
XX X
X
X
X
P
Engine Glow Plugs Energized
P
PP
P
P
P
P
PP
P
P
X
P
Component (Input) Position
Not Relevent for Function
Component (Output) Energized
KEY TO CHART
P
P
Diagnostic Shunt Wires Not Connected
Diagnostic Shunt Wires Connected
X
X
Cutting Deck (or Implement) in Float
X
X
X
X
X
X
X
PP
P
P
P
NOTE: For the Start machine function, the PTO switch
must be OFF and the deck lift must be in the OFF posi-
tion.
NOTE: The glow plugs are energized for approximately
six (6) seconds when the ignition switch is turned from
OFF to RUN. The glow plugs are also energized when
the ignition switch is in the START position.
NOTE: The Diagnostic Light Fault Retrieval ma-
chine function requires that the diagnostic shunt wires
be connected and the ignition key be in the RUN position
(see Diagnostic Light (4WD Machines) in this section).
Electrical
System