Pto Interlock Switch; Seat Switch (Mechanical) - Simplicity Coronet Series Service & Repair Manual

TESTING THE SAFETY INTERLOCK
SYSTEM
A. Test PTO Interlock Switch
When a switch is replaced, test the new switch to make
sure it works correctly.
1. Turn the PTO switch (A, Figure 22) OFF.
2. Remove the PTO switch wire harness plug.
3. Set VOM to Ohms ( ). Touch one probe to each of
the back row of terminals. The VOM should show no
continuity. (Figure 22, terminals closer together).
4. Touch one probe to each of the front row of termi-
nals. The VOM should show continuity (Figure 23,
terminals further apart).
5. Move PTO switch to the ON position.
6. Touch one probe to each of the back row of termi-
nals. The VOM should show continuity (Figure 24,
terminals closer together).
7. Touch one probe to each of the front row of termi-
nals. The VOM should show no continuity (Figure
25, terminals further apart)..
B. Test Seat Switch - Mechanical
(Early Models Only)
NOTE: Later models use a seat switch mounted in the
seat. This switch is not mechanically testable but can be
electrically tested.
1. Tilt the seat deck forward and rest it against the
steering wheel. The switch button should not be
depressed.
2. Tilt the seat deck down to operating position and
have someone sit in the seat. The weight of the
operator should depress the switch button.
5 Electrical Troubleshooting
Safety Interlock System Tests
Pull-Type Switch
Figure 22. PTO Switch Testing
A. PTO Switch
Figure 23. PTO Switch Testing
Figure 24. PTO Switch Testing
Figure 25. PTO Switch Testing
Early Model Seat
Switch Location
Figure 26. Seat Switch Location
A. Seat Switch
5 - 13
A
Rocker-Type Switch
A