Toro Reelmaster 3550-D Preliminary Service Manual page 46

Diagnostic Display
The Diagnostic Display (Fig. 6) can be connected to the
wiring harness connector located under the control pan-
el to verify correct electrical functions of the machine.
Toro Electronic Controllers (TEC) inputs and outputs
can be checked using the Diagnostic Display.
Toro Part Number for Diagnostic Display: 85- -4750
Toro Part Number for Overlay (English): 121- -7886
NOTE: Diagnostic Display overlays are available in
several languages for your Reelmaster. 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 loop- -back connector to harness connector.
Machine will not operate without loop- -back con-
nector installed on harness. Store Diagnostic Dis-
play in a dry, secure, indoor location and not on
machine.
Electrical System Page 5 - - 6
Figure 6
Figure 7
Reelmaster 3550--D