Toro 74954 - TVS Diode; Purpose; Location; How It Works

ELECTRICAL
7-9Toro Z Master G3 3000/5000/6000 Series Service Manual
7
TVSDiode
Purpose
The TVS Diode is a surge protector for the electric PTO
clutch.
Location
The TVS Diode is located on the right hand side of the
engine, plugged into the wiring harness (Fig. 498).
Fig.498 DSCN-0005a
HowItWorks
This is a surge protector for the electric PTO clutch. It
clamps the voltage off of the PTO clutch (Fig. 499).
Testing
1. Check to see if the 10 amp fuse is blown for the PTO
clutch.
2. With a multi-tester, check the oms. It should read an
open line both ways.
Fig.499 DSCN-0149a