Diode Assemblies - Toro ProCore 648 Service Manual

Diode Assemblies

Diodes D1, D2 and D3 provide logic for the latch relays
used in the ProCore 648. Diode D4 is used for circuit
protection from voltage spikes when the electric clutch
is de–energized. The diodes plug into the wiring har-
ness at various locations (see Wire Harness Drawings
in Chapter 8 – Electrical Diagrams).
Diode Test
The diodes (Fig. 37) can be individually tested using a
digital multimeter (diode test or ohms setting) and the
table to the right.
ProCore 648
1
1. Diode
2. Male terminal
Multimeter
Red Lead (+)
on Terminal
Female
Male
Page 5 – 27
2
Figure 37
3. Female terminal
Multimeter
Black Lead (–) Continuity
on Terminal
Male YES
Female NO
Electrical System
3