3700 no start

   / 3700 no start #1  

hunter82i

New member
Joined
Aug 31, 2010
Messages
13
Tractor
L3700SU
Need some help from TBN. L 3700 will not crank. Battery voltage ok. It seems like a safety is locking out the starter. I've checked the seat safety and pedal safety. Verified pto is off. All fuses seem ok.

What am I missing? What else could be locking out the starter?
 
   / 3700 no start #3  
do you have a clutch ??
 
   / 3700 no start
  • Thread Starter
#4  
Thanks guys. I will check voltage at the starter. I forgot to mention the clutch safety. Does anyone know if these safeties are normally open or normally closed?
 
   / 3700 no start #5  
Thanks guys. I will check voltage at the starter. I forgot to mention the clutch safety. Does anyone know if these safeties are normally open or normally closed?

not sure ..but easy to check with a voltmeter or ohm meter.
 
   / 3700 no start #6  
Happened one time to me - started checking the safety switches and couldn't find any problems. So I was sitting there and tried it again, nothing, rocked the HST pedal a few times while hitting the switch and bingo, it starts. It seems that switch is very picky about the position it is in.... Plus I forgot the HST had a switch on it.
Good luck
 
   / 3700 no start
  • Thread Starter
#7  
Code54 said:
Happened one time to me - started checking the safety switches and couldn't find any problems. So I was sitting there and tried it again, nothing, rocked the HST pedal a few times while hitting the switch and bingo, it starts. It seems that switch is very picky about the position it is in.... Plus I forgot the HST had a switch on it.
Good luck

I will try this as well. The safety for this in under the dash.
 
   / 3700 no start #8  
Check that the PTO engagement lever is fully 'off'. That got me last spring.

JayC
 
   / 3700 no start #9  
Even now, every once and a while mine is picky about starting so I rock it and hit the key and I am back in business. it seems if it is out of position 1/8 of an inch the interlock kicks in and there is no starting the tractor.
 
   / 3700 no start #10  
Is is making any noise like a click? Had that happen to me twice on my L3710. Once it was the pto lever safety. Another time it turned out to be a bad battery. I checked the battery and the starter and had plenty of volts. Spent quite a bit of time testing things, even rebuilt the starter solenoid. Eventually found out it was a bad battery - had plenty of volts, but not enough cranking amps. A battery tester would have saved me a lot of time.

If you don't figure it out, and want wiring diagrams. I have them for the L3710, which is probably similar. I might be able to scan them in. Let me know if you want them and I'll give it a try.

Hope this helps a little :)
 

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