Toro GroundsmasterR 4300-D Service Manual page 155

Diagnostic Display
The Diagnostic Display (Fig. 4) can be connected to the
wiring harness connector located inside the control arm
to verify correct electrical functions of the machine. TEC
controller inputs and outputs can be checked using the
Diagnostic Display.
Toro Part Number for Diagnostic Display: 85- -4750
Toro Part Number for Overlay (English): 117- -0171
NOTE: Diagnostic Display overlays are available in
several languages for your Groundsmaster. Refer to
your Parts Catalog for overlay language options and
part numbers.
IMPORTANT: The Diagnostic Display must not be
left connected to the machine. It is not designed to
withstand the environment of the machine's every
day use. When use of Diagnostic Display is com-
pleted, disconnect it from the machine and recon-
nect loopback connector to harness connector.
Machine will not operate without loopback connec-
tor installed on harness. Store Diagnostic Display in
a dry, secure, indoor location, not on machine.
Battery Hydrometer
Use the Battery Hydrometer when measuring specific
gravity of battery electrolyte. Obtain this tool locally.
Groundsmaster 4300--D
DIAGNOSTIC
DISPLAY
OVERLAY
117- -0171
Page 5 - - 5
Figure 4
Figure 5
Figure 6
Electrical System