Verify Interlock System Operation - Toro Workman 3000 Series Service Manual

Verify Interlock System Operation

The purpose of the interlock system is to prevent the en-
gine from cranking or starting unless the clutch pedal is
depressed or PTO (if so equipped) is disengaged.
The interlock switches are for the operator's
protection, so do not bypass them. Check op-
eration of the switches daily to assure inter-
lock system is operating. If a switch is
malfunctioning replace it before operating.
Regardless whether switches are operating
properly or not, replace them every two years
to assure maximum safety. Do not rely entirely
on safety switches – use common sense!
To verify clutch interlock switch operation:
1. Sit on operator's seat and engage parking brake.
Move shift lever to NEUTRAL position. Disengage PTO
(if so equipped).
2. Without depressing clutch pedal, rotate key clockwise
to start position.
3. If engine cranks or starts, there is a malfunction in the
interlock system that must be repaired before operating
vehicle.
Electrical System (Rev. G)
CAUTION
To verify PTO interlock switch operation:
1. Sit on operator's seat and engage parking brake.
Move shift lever to NEUTRAL position.
2. Engage PTO.
3. Depress clutch pedal and rotate key clockwise to start
position.
4. If engine cranks or starts, there is a malfunction in the
interlock system that must be repaired before operating
vehicle.
Page 8 – 16 Workman 3000/4000 Series