Toro 04861, Service Manual

Page: 105 / 234

Testing the Electrical Components
Whenever possible, check the component circuit operation with the InfoCenter
display on the console. With the key switch in the ON position, use the InfoCenter
diagnostics menu to ensure that the component state changes as the component
is toggled. This quick check identifies that the component and circuit wiring are
working as designed. If the InfoCenter operation suggests that a component
circuit is not functioning correctly, proceed to the appropriate component testing
procedure found in this section. If the test procedure identifies no problem with
the component, carefully inspect the wire harness and connectors for problems.
The Greensmaster eFlex uses a 48 VDC electrical system that is an isolated
circuit. The machine frame is not used for any ground connections.
For accurate resistance and/or continuity checks, electrically disconnect the
component being tested from the circuit (e.g., unplug the key switch connector
before doing a continuity check on switch). Individual components should be
electrically isolated (e.g., disconnect all the leads or remove the leads from the
circuit) from the circuit when tested.
CAUTION
When testing a machine electrical component for continuity
with a multimeter (ohms setting), ensure that the component is
disconnected from the machine wire harness to prevent current flow
through the component.
CAUTION
Remove all the jewelry, especially rings and watches, before doing
any electrical troubleshooting or testing. Disconnect the lithium
battery pack to open the battery circuit before working on the
electrical system.
Greensmaster ® eFlex 1021 Page 5–21 Electrical System: Testing the Electrical Components
20248SL Rev C