Bent curl cylinder on LA724 loader

[4570Man]

This is about the third thread in the last week or so about this happening and not one of the posters has explained how it happened. Doesn't seem possible for this to happen so often.

Back dragging with the bucket curled all the way down.

 

[ovrszd]

Back dragging with the bucket curled all the way down.

Or improper use of a Grapple. Both can end bad.

 

[big bubba]

or expecting too much of an undersized machine.
i see a lot of forum members complaining that their compact tractors are unable or damaged to do the job at hand. unrealistic expectations
& then they wish they had gone bigger.
best of luck to the OP. there's a lot of good advice on the forum

 

[moship]

Not certain if it was mentioned before, but the rod is available individually. Price will drive most to look for a complete cylinder, but it is available.

Kubota: COMP ROD 2, CYL
Part Number 7J274-64203
Vendor Kubota
Messick's Price $364.20
Stock Quantity 0
Weight 9.30 lbs
Days to Order 5-7 business days
Replaces 7J274-64202

 

[wdchyd]

This is about the third thread in the last week or so about this happening and not one of the posters has explained how it happened. Doesn't seem possible for this to happen so often.

Back dragging with bucket curl cyls fully extended. The bucket grabs the dirt like a fishhook........VIOLA......bent rods

Happens all the time, most control valves do not have work port reliefs to retract them when snagging the ground.

 

[4570Man]

or expecting too much of an undersized machine.
i see a lot of forum members complaining that their compact tractors are unable or damaged to do the job at hand. unrealistic expectations
& then they wish they had gone bigger.
best of luck to the OP. there's a lot of good advice on the forum

Or expecting something between a tracked skid steer and a dozer from a compact tractor.

 

[Deere Dude]

Back dragging with bucket curl cyls fully extended. The bucket grabs the dirt like a fishhook........VIOLA......bent rods

Happens all the time, most control valves do not have work port reliefs to retract them when snagging the ground.

I dodged the bullet the other day doing just that, but I blew a hydraulic hose so only cost $60 plus one shower. Lesson larned.

 

[Diggin It]

I guess I really haven't done that much of that kind of work. Anything I've done so far has only been half to three quarter, so more smoothing and compressing downward, and then only in loose material I've just laid. I seem to find that using the rounded heel of the bucket does well enough for me raising it slightly to get over that last bit and smooth it down, then drive over a few times to pack.

 

[rbargeron]

Bent cylinder rods are not a "must replace" situation. If they are carefully bent back close to straight (using padded blocks, straight-edge, etc) the glands/seals usually have enough clearance to operate without binding. Looking at the straightened rod while using the tractor makes a continuing reminder to avoid whatever bent it.

If the rod is scratched, smooth off any high spots and fill the groove with super glue. I've done that on a friend's outrigger cylinder - stopped the leak.

 

[wdchyd]

Bent cylinder rods are not a "must replace" situation. If they are carefully bent back close to straight (using padded blocks, straight-edge, etc) the glands/seals usually have enough clearance to operate without binding. Looking at the straightened rod while using the tractor makes a continuing reminder to avoid whatever bent it.

If the rod is scratched, smooth off any high spots and fill the groove with super glue. I've done that on a friend's outrigger cylinder - stopped the leak.

True, but one must realize the rods won’t be as strong when they are bent back and may break in two pieces under the press if the tensile strength of the rod material is exceeded and bent too much, making a very dangerous situation in the repair shop. There are some that straighten them out on the machine without taking the cyl apart, but they run the risk of ruining the cyl barrel, gland and/or piston potentially rendering the cyl junk, then a trip to the dealer to lighten up the wallet to follow. If a successful straightening job is pondered, stripping the cyl down should always be considered.
Not sure super glue is the right application for hyd rod repair, Stainless Steel tig welding is what we do for a quickie fix.