looking at used JD 3720 or 5045E tractor

[ArlyA]

I see used John Deere 3720 tractors come and go. If you have one, what do you think of it? What kind of hours might be a problem?

 

[mulitweed]

ive owned a 3320 for 8 years never had any issues , only thing is there light on the back end i weighted ti down

 

[ArlyA]

Did you have a backhoe for it?

 

[mulitweed]

Did you have a backhoe for it?

I dont

 

[mulitweed]

i dont

 

[mulitweed]

no i dont

 

[mulitweed]

sorry about the repeat reply , kept saying invalid msg

 

[super55]

As for the drivetrain and engine you can have thousands of hours of them without likely issues. The front wheel seals as it seems with almost all JD compacts are very likely to leak unless you vent the front axle.

 

[mulitweed]

just had mine repaired , one side , is there a vented dipstick ?

 

[dodge man]

I looked up the specs and they look like a solid pre emission tractor with a loader that will lift about 1000 pounds to full height. Probably roughly the same as a 3046r in a new machine.

 

[ArlyA]

Yes, but it seems the price represents that.

 

[super55]

just had mine repaired , one side , is there a vented dipstick ?

There are a couple aftermarket manufacturers for them but they charge a premium for them. Easy solution is to just drill a 1/16 hole through the plastic dipstick.

 

[kennyd]

just had mine repaired , one side , is there a vented dipstick ?

AXLE VENT SYSTEM | OTIS INNOVATION

Otis Innovation offers a custom vented dipstick system for a wide variety of MFWD tractor axles.

www.otisinnovation.com

 

[jd670]

I've had my 3320 since 2008 with zero problems. Also have the 447 backhoe for it. As posted earlier, they are lite in the rear end. So weigh them down.

 

[ArlyA]

I've had my 3320 since 2008 with zero problems. Also have the 447 backhoe for it. As posted earlier, they are lite in the rear end. So weigh them down.

Have you used the hoe much? How has it worked for you?

 

[mulitweed]

There are a couple aftermarket manufacturers for them but they charge a premium for them. Easy solution is to just drill a 1/16 hole through the plastic dipstick.

 

[mulitweed]

thanks

 

[gstrom99]

AXLE VENT SYSTEM | OTIS INNOVATION

Otis Innovation offers a custom vented dipstick system for a wide variety of MFWD tractor axles.

www.otisinnovation.com

$100 ! Wow. I like the "drill the plastic OEM one" Doesn't leak?

 

[ArlyA]

I'm also looking at JD 3520 anf seems to be more of them out there, but pretty much the same price.

 

[super55]

$100 ! Wow. I like the "drill the plastic OEM one" Doesn't leak?

It might if you run it at a steep angle like moldboard plowing but the amount lost is nominal.

Both my 4310 and 4400 had front seal axle leaks. I vented both of them and replaced the recommended hygard with GL5 gear lube since its a self-contained unit completely separate from the hydraulic system so running low viscosity hydraulic oil is unnecessary. After I did those two changes the axles might be "wet" but don't leak enough to warrant replacing them.

I do annually before freezing weather remove the drain plugs on each hub assembly to do a quick check to drain any water that may have accumulated but so far with the small hole in the cap I haven't noticed any accumulation even with my tractors typically stored outside and utilized in snowy weather.