First Breakdown on Green Machine

   / First Breakdown on Green Machine #1  

DennisFolsom

Gold Member
Joined
Oct 6, 2003
Messages
427
Location
Central Maine
Tractor
John Deere 4600, John Deere X380
It was my own fault, and I'm disgusted at myself! :mad: Even without the helpful advice in the manual, I knew that I shouldn't swing a stump into the stabilizer! I was concentrating on getting the beast out of the hole and I let one corner get more than a little too cozy with my right-side stabilizer. When I went to pick the stabilizer up to move, the juice squirted. I had broken the hose clear off (the outside connection, which delivers pressure to raise the stabilizer).

It being early Saturday afternoon, I knew that the local tractor dealers would be closed. However, I thought my nearby Tractor Supply might have the 3/8" x 36" hose I needed. They did! To my surprise, when I got to the counter to check out, the hose was only $12.99 + tax. :) It's a Chinese made hose, rated at 4000 psi. The hose itself is thicker in diameter than the original. I hope it lasts OK.

It was a bit of a job to replace the hose. The JD 48 Backhoe has a plate over the hose connections to the valves. That plate also supports the swing bumpers. The plate is held on by two bolts which go through the rear frame. The nuts are darn near impossible to get at with the backhoe mounted on the tractor.

So, I decided to dismount the backhoe. I had read the procedure in the manual a few times, but this is the first time I actually did it. I was not in the greatest spot, but did not want to drag the stabilizer along. Anyway, the dismounting went well. The rockshaft lifted the hoe enough to free the pins, and I soon had it off.

After replacing the hose, and the cover plate, I remounted the hoe. I had a slight alignment problem and had to fiddle with it a bit. I think that the remounting would have gone a lot better had I been on nice flat, level ground.

When I put the new hose on, I deliberately left the outer connection loose, so I could bleed air out of it. I did that, then tightened the hose. Everything seems OK.

All in all, I don't think I lost more than about a cup of fluid. I plan to go to the JD dealer on Monday and pick up a couple gallons of their very special Low Viscosity Hydraulic/Transmission fluid. Since I was just above the add mark before this episode, I'll add a quart or two.

After the repairs, I did haul off the stump, but I left the crater for tomorrow. My Green Machine is safely back in the garage.:D I am approaching 30 hours of use of my new-to-me JD 4600. The tractor now has just under 465 hrs.

For a tractor breakdown, I got off easy. I learned a lesson - KEEP EVERYTHING AWAY FROM THE STABILIZERS!
 
   / First Breakdown on Green Machine #2  
Good lesson to pass along... "red flag" for other backhoe users to be more aware of!

My first tractor with a backhoe had a couple of deep gouges on the top of the hyd cylinder on each side of the hyd hose to the stabilizer. And the rubber covering on the hose was peeled back, exposing the wire mesh.

The previous owner had gotten just a little too close to the stabilizer with the hoe bucket! :eek: That visual reminder saved me from the same kind of "learning experience" that you just had!!

AKfish
 
   / First Breakdown on Green Machine #3  
When I bought the 110tlb in 2005 I opted for the stabilizer guards to protect the cylinders. I bent one of these guards in the first day or two of use:ashamed: Learned fast that the bucket can do alot of damage if you aren't paying attention. After 800 hours of use that is the only damage so I can live with that.
 
   / First Breakdown on Green Machine #4  
When I bought the 110tlb in 2005 I opted for the stabilizer guards to protect the cylinders. I bent one of these guards in the first day or two of use:ashamed: Learned fast that the bucket can do alot of damage if you aren't paying attention. After 800 hours of use that is the only damage so I can live with that.

Yep... I got the stabilizer guards on my 110, too!

I seem to recall the JD offers the guards for the the 48 hoe -- there was an "armour package" for the 40x10 series that included a 3/4 length shield for the hood, too.

Don't know if the newer 485 hoe has optional stabilizer shields.

Speaking of damage and backhoes and stabilizers... The only damage I've inflicted upon my TLB was from the stabilizer leg coming into close proximity with the hoe boom!

I was loading stumps onto a trailer and the inside stabilizer leg was too close to the trailer bed; so I raised the leg up a bit - and then swung the boom around to drop the stump - Ouch!! The foot on the stabilizer was flipped up and I caught it with the outside edge of the hoe boom. Bent the edge of the boom face.

Lesson - always know where those stabilizers are - on the ground; in the air!

AKfish
 
   / First Breakdown on Green Machine #5  
Dennis, does your backhoe have a subframe, or is it a 3PH mount?
 
   / First Breakdown on Green Machine
  • Thread Starter
#6  
Dennis, does your backhoe have a subframe, or is it a 3PH mount?

Roy -

It's John Deere's subframe setup. The rockshaft is used to hoist the backhoe into place, and to let it down when taking it off. Otherwise, no part of the 3 point hitch is used. The backhoe is held by pins and hooks in the mating pieces of the backhoe frame and the subframe, which is attached to the tractor.

That one time that I took the hoe off and remounted it, I was not in a good level place. Even then, I did not have much trouble. I'm looking forward to dropping it off on a nice level spot, with a couple of 4 x 4 blocks under the frame. I think it will come off and go on as easy as the brochure makes it look.:)
 

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