Testing The Electrical Components - Toro Greensmaster e1021 Service Manual

Testing the Electrical Components

Greensmaster ® e1021/e1026
20246SL Rev A
Whenever possible, check the component circuit operation with the InfoCenter
display on the console. With the key switch in the RUN 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 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.
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.
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.
CAUTION
CAUTION
Page 5–21 Electrical System: Testing the Electrical Components