John Deere 3720 Air Conditioner Fix

   / John Deere 3720 Air Conditioner Fix #1  

JDneophyte

Member
Joined
Oct 7, 2011
Messages
45
Location
Chicago & Wisconsin
Tractor
John Deere 3720
After ignoring the A/C for two+ years due to reliability and high pressure switch cut out issues, I decided to fix this once and for all!

Any of you guys who use your tractors in hot dusty conditions....know the AC is mediocre at best. It’s a bad design (undersized condenser, battery blocks air flow, exhaust blows debris into front of tractor) and sitting in the fish bowl at 90+ sucks! Here's what I did:

Relocated the battery to a bracket I made, upgraded the battery to an Optima, mounted to the drivers side loader support -

vu&QAUqqSB.jpeg

V!tg8prTzQ.jpeg

M4Jt=t81Y0.jpeg

To increase air flow over the condenser, I added a small 8 amp fan (the altenator is 40 A)...blows all the dust, clippings through the condenser, dissipates the heat much better than the engine fan alone.

X9LtJCRH~Y.jpeg

I ran the tractor for 8 hours today (raking hay) in 90+ heat......cab stayed cool, condenser was clean as a whistle!

Having fun!
 

Attachments

  • uo!7mOimkA.jpeg
    uo!7mOimkA.jpeg
    134.5 KB · Views: 552
Last edited:

Tractor & Equipment Auctions

Golf Cart (A48082)
Golf Cart (A48082)
John Deere TX 4x2 Gator (A47307)
John Deere TX 4x2...
2013 Chevrolet Cruze LS Sedan (A46684)
2013 Chevrolet...
TPM 16 Mini Excavator (A49251)
TPM 16 Mini...
Entyre Chip Spreader (A48837)
Entyre Chip...
Digmaster DM100 Mini Excavator (A49251)
Digmaster DM100...
 
Top