How It Works; Testing; Glow Plug Switch; Purpose - Toro Diesel Z Master Service Manual

How It Works

The high temperature light is connected in parallel with
the high temperature audible alarm. The light gives a
visual indicator that the engine has reached a high temp-
erature.
The glow plug light comes on when the glow plug relay
is activated by the glow plug switch (Fig. 674).
A A
Fig 674
A. High temperature light

Testing

The indicator lights can be tested with the diode tester or
a multi-meter. When testing the indicator lights, the diode
tester will show a reading in only one direction when
connected to the light terminals.
Z580/Z593/Z595 Diesel Service Manual
B B
PICT-4167a
B. Glow plug light
ELECTRICAL

Glow Plug Switch

Purpose

The glow plug switch activates the glow plug relay in
addition to turning the glow plug indicator light on.

Location

The glow plug switch is located on the control panel on
the left side of the operator position (Fig. 675).
Fig 675
6
PICT-4133
6-15