Servicing The Wire Harness; Drive System Maintenance; Torquing The Wheel-Lug Nuts - Toro Groundsmaster 3280-D Operator's Manual

Standard Control Module Chart
Each row in the logic chart below identifies input and output requirements for each specific product function.
The left column lists the product functions. The symbols identify specific circuit conditions, including energized
to voltage, closed to ground, and open to ground.
Symbols Chart for the Standard Control Module
Function Power In Neutral Start On Brake On
On
— —
Start
— —
Run (Off
Unit)
—
Run (On ⊗
Unit)
—
Mow
⊗
—
Hi Temp
Warning
—
Hi Temp
Shutdown
(-) Indicates a circuit closed to ground. ( LED ON)
(⊗) Indicates a circuit open to ground or de-energized (LED OFF)
(+) Indicates an energized circuit (clutch coil, solenoid, or start input) (LED ON)
A Blank indicates a circuit that is not involved with the logic.
(A) Re-initiate the PTO input after engine cool down (cycle key on-off)

Servicing the Wire Harness

Prevent corrosion of wiring terminals by applying
Grafo 112X (Skin-over) grease, Toro Part No. 505-47,
to the inside of all harness connectors whenever you
replace the harness.
Important:
Whenever working with the electrical
system, always disconnect the battery cables,
negative (-) cable first, to prevent possible wiring
damage from short-outs.
Inputs
PTO On
+
⊗ ⊗
⊗ ⊗ ⊗
—
⊗ ⊗
— —
⊗
⊗
⊗
In Seat Hi Temp Hi Temp
Shutdown Warning
—
⊗
⊗ ⊗
—
⊗
—
⊗
— (A)
⊗
—
Drive System
Maintenance
Torquing the Wheel-Lug
Nuts
Service Interval: After the first hour
After the first 10 hours
Every 200 hours
Wheel-lug nut torque specification: 102 to 108 N∙m
(75 to 80 ft-lb)
Torque the lug nuts at the front and rear wheels
in a crossing pattern as shown in
specified torque.
50
Outputs
Start ETR
+ +
⊗
+
⊗ ⊗
+
⊗ ⊗
+
⊗ ⊗
+ +
⊗ ⊗
Figure 56
PTO
⊗
⊗
⊗
+
⊗
⊗
to the