L3700 SU Starting issues

/ L3700 SU Starting issues #1  

Tomtint

Elite Member
Joined
Apr 12, 2011
Messages
3,401
Location
Boston
Tractor
L3700SU
So over the past few years, I would have an intermittent starting problem with the L3700 SU. After reading all the typical problems that have happened with the L3400 ( basically the same tractor ). In many cases the issue was the safety switch below the steering column. So over the past few years I have replaced it a couple times. Well.. It wouldn't turn over again last week and again this past weekend. I had an extra safety switch and plugged it in..Still no start. Plenty of power. Solenoid clicks..Just no start. Tapped the starter with a hammer....bang...fires up. Starter is now ordered from my local dealer..about 150.00.
 
/ L3700 SU Starting issues #2  
I don't know that replacing the starter is all that justified. I have 3 B2150s and one BX2200. One of the B2150's has around 1750 hrs on it and it has exactly the disease you describe. I have had to reach in with a socket extension rod and tap the starter with a light hammer ping on the rod reaching the starter probably 5 times over the last couple of years. Maybe have to do that once out of 50 starts ? I had the BX2200 do it twice but far less often and much lower hours tractor. I have not felt a need to replace the starter yet.

Other posts on TBN have mentioned this. Some think it is wear in the starter. Some think it is a random thing where if the starter quits in exactly the right rotation position the last time you used it it sticks. Who knows.
 

Marketplace Items

2017 Nissan Quest Van (A61569)
2017 Nissan Quest...
2002 POLAR TANK (A60736)
2002 POLAR TANK...
2005 INGERSOLL-RAND WL-350 WHEEL LOADER (A62129)
2005...
2025 Kubota SVL75-3HFWCC High Flow Cab Track Loader - 70 hours
2025 Kubota...
2016 Isuzu NRR 18ft. Flatbed Truck (A61568)
2016 Isuzu NRR...
2008 TCE MANUFACTURING 20GN GOOSENECK GEN TRAILER (A58214)
2008 TCE...
 
Top