Tvs Diode - Toro TITAN Max Service Manual

Electric PTO Clutch- Measuring Clutch Current Draw (continued)
PTO Clutch Electrical Specification Chart
Resistance (OHMs)
3.05 ± 5%

TVS Diode

Electrical System: Service and Repairs
g336411
1. Park the machine on a level surface and disengage the PTO. Stop the
engine, wait for all moving parts to stop, and remove the key. Engage the
parking brake.
2. Disconnect the clutch wire connector.
3. Set the multi-meter to measure amps (10 amp scale).
4. Connect the positive meter lead to the chassis harness terminal 1.
5. Connect the negative meter lead to the corresponding wire terminal 2.
6. Connect a short jumper lead from terminal 3 to terminal 4.
7. Turn the ignition switch to RUN and the PTO switch to the ON position.
8. Record the amp reading and refer to the PTO Clutch Electrical Specification
Chart below.
The TVS diode protects the electrical system from current surges caused by
PTO engagement and disengagement.
Figure 127
AMP Draw
3.93
Page 8–16
Continuity to Ground
OPEN
TITAN® Max Service Manual
3442-428 Rev A