Auto/Low Mode, Engine Speed Request And Cutting Deck Lift Switches - Toro Groundsmaster 4500-D Series Service Manual

Auto/Low Mode, Engine Speed Request and Cutting Deck Lift
Switches
Testing
Groundsmaster ® 4500-D/4700-D
19245SL Rev A
g309581
1. Console arm
2. Auto/Low mode switch
3. Lift switch (#1 to #5)
The Auto/Low mode and cutting deck lift switches are all identical. These
switches are located on the console arm
The Auto/Low mode switch is used as an input for the TEC controller to select
either the Auto mode or Low mode traction speed.
The cutting deck lift switches are used as inputs for the TEC controller to raise
or lower the cutting decks. When the front of a lift switch is depressed, the
controlled decks will lower. When the rear of a lift switch is depressed and held,
the controlled decks will raise.
Note: To raise or lower the decks, the operator seat has to be occupied. Also, to
lower the cutting decks, the traction speed has to be in Low mode.
Note: Before disconnecting a switch for testing, the switch and its circuit wiring
should be tested as a TEC electrical input using the InfoCenter Display (see
InfoCenter Display (page
circuit wiring are functioning correctly, no further switch testing is necessary.
If, however, input testing determines that the switch and circuit wiring are not
functioning correctly, proceed with the following switch testing procedure.
1. Park machine on a level surface, lower cutting decks, engage parking brake
and stop engine. Remove key from ignition switch.
2. Remove console arm covers to gain access to switch that is to be tested (see
Console Arm (page
3. Disconnect wire harness electrical connector from the switch that is to be
tested.
g276001
Figure 192
4. Lift switch (GM4700 #7)
5. Lift switch (GM4700 #6)
(Figure
6–8)). If input testing verifies that the switch and
8–10)).
BACK OF SWITCH
Figure 193
Page 6–33
192).
Electrical System: Component Testing