Hi guys,
I'm working on a John Deere 997 Z-Trak for a friend and I'm trying to get the seat safety switch to work. I think it may be an early 2000's model (ID# DM997SC020068).
Complaint - mower will not cut off while mower deck is engaged and you lift your butt out of the seat.
Things I've done/found:
1. Seat safety switch confirmed to close when switch depressed and open when nobody in the seat.
2. Mower start and runs/mows normally otherwise.
3. neutral safeties both confirmed to work: i.e. mower won't start with either lever out of neutral position (don't think it has anything to do with the problem but I checked it anyways).
4. Brake safety works as expected (again, don't think it has anything to do with the problem but I checked it anyways)
5. Previous owner had a jumper piggybacked from red wire of seat timer delay module running to the red wire on shutoff solenoid valve. No idea why it was installed so I disconnected it and everything is still acting the same.
6. Seat timer delay module has zero VDC on red wire with key off and 12+VDC with key in run position. (4 pin plug associated with this module)
7. I swapped the Start relay (7th of 10 relays) with the Seat relay (9th of 10 relays) to see if it was a bad seat relay. No change. Mower still starts and seat switch still not working.
Could it just be a bad seat delay module? Thanks in advance for any help you can provide.
Jerry
I'm working on a John Deere 997 Z-Trak for a friend and I'm trying to get the seat safety switch to work. I think it may be an early 2000's model (ID# DM997SC020068).
Complaint - mower will not cut off while mower deck is engaged and you lift your butt out of the seat.
Things I've done/found:
1. Seat safety switch confirmed to close when switch depressed and open when nobody in the seat.
2. Mower start and runs/mows normally otherwise.
3. neutral safeties both confirmed to work: i.e. mower won't start with either lever out of neutral position (don't think it has anything to do with the problem but I checked it anyways).
4. Brake safety works as expected (again, don't think it has anything to do with the problem but I checked it anyways)
5. Previous owner had a jumper piggybacked from red wire of seat timer delay module running to the red wire on shutoff solenoid valve. No idea why it was installed so I disconnected it and everything is still acting the same.
6. Seat timer delay module has zero VDC on red wire with key off and 12+VDC with key in run position. (4 pin plug associated with this module)
7. I swapped the Start relay (7th of 10 relays) with the Seat relay (9th of 10 relays) to see if it was a bad seat relay. No change. Mower still starts and seat switch still not working.
Could it just be a bad seat delay module? Thanks in advance for any help you can provide.
Jerry