Hydraulic hitch?

[Storrsy]

Just a quick one- how does one go about locking a hydraulic hitch if you can’t actually curl the attachment in to lock it? Think a post knocker for example. I can’t curl it in until it’s locked so catch 22!

 

[doobin]

Just a quick one- how does one go about locking a hydraulic hitch if you can’t actually curl the attachment in to lock it? Think a post knocker for example. I can’t curl it in until it’s locked so catch 22!

Both of mine curl in to unlock, and are locked by default?

 

[Thomas7740]

Same as above, both mine lock by default. What make of hitch is it?

 

[Storrsy]

Hmm, that’s interesting, none of my machines have a hydraulic hitch (as you might imagine @doobin !). But the last two I’ve had on hire I’m sure you had to curl them back in before they could lock (geith I think). Or at least the back pin had to be fully seated- which you’d sort of have to curl in a bit to do anyway. So if I pick up a postknocker which opposes the way a normal bucket works as in if you curled it in the back pin would want to come out. So wondering how id lock it.

 

[CPS]

As soon as you flick the lock switch the hitch should start to close. It might only creep closed and need the bucket curled to lock it on properly

 

[GazCro]

As soon as you flick the lock switch the hitch should start to close. It might only creep closed and need the bucket curled to lock it on properly

Depending how its piped any service might create pressure to close it.

 

[doobin]

Depending how its piped any service might create pressure to close it.

This is how mine work and I have no problems using the post knocker. On one of them I have to touch the dipper with the bottom of the post knocker to generate pressure to open the hitch, but I chamfered the end to match and it doesn't bother me.

You won't look back going to a hydraulic hitch.

 

[Keif]

If someone wanted make their own hyd. quick hitch where would you go about finding small enough cylinders? I'm not having any luck.

 

[CPS]

Depending how its piped any service might create pressure to close it.

True, and old trick is to press the track petals just ever so slightly to stroke the pumps up! Although I'm seeing alot of hitches being piped up now with the bucket line providing pressure.

 

[Grahams]

I’ve found the opposite on Miller type quick hitches. You can pick up big attachments okay, but the cab gets in the way when you need to curl it round to release the locking bar.
Much better to have an S type hitch which doesn’t require curling either way.

 

[Hg2702]

I’ve found the opposite on Miller type quick hitches. You can pick up big attachments okay, but the cab gets in the way when you need to curl it round to release the locking bar.
Much better to have an S type hitch which doesn’t require curling either way.

Plus Miller take about 4 months to sort it out then wash there hands of it and leave you to it

 

[DaveDCB]

I’ve found the opposite on Miller type quick hitches. You can pick up big attachments okay, but the cab gets in the way when you need to curl it round to release the locking bar.
Much better to have an S type hitch which doesn’t require curling either way.

Had this problem when I put the flail on the too hitch which requires you to put pressure into the dipper circuit to release.. it Fowled the boom, had to unbolt it and then cut a chunk out of the headstock so I could fully curl it up! And no I wasn’t going to just hit it against the dipper!!

 

[GazCro]

A lot of what's being discussed on here isn't the fault of hitches but more how they are piped up or the controller used. Many may be piped so the bucket circuit needs pressured to release but it would be worth trying other services to see if it has any affect. Geith controller is good as it has an override to release hitch with v minimal pressure. Takis own hitch pipework allows you to either crowd bucket or pressurising aux flow will release bucket regardless of bucket position (it does require two switches to be pressed to work) they do class hitch circuit as aux 3 which may be to cover their ar*e.

 

[Smiffy]

Had this problem when I put the flail on the too hitch which requires you to put pressure into the dipper circuit to release.. it Fowled the boom, had to unbolt it and then cut a chunk out of the headstock so I could fully curl it up! And no I wasn’t going to just hit it against the dipper!!

If it's pressure rather than a position sensor like the old ones can't you just put the flail flat on the floor or is the leverage not enough to avoid picking the machine up

 

[DaveDCB]

If it's pressure rather than a position sensor like the old ones can't you just put the flail flat on the floor or is the leverage not enough to avoid picking the machine up

Would of just bent the flail tbh, takes a good few seconds of full curl, won’t even disengage on tickover!

 

[T whiting]

A gieth hitch will unlock if you press the overide button untill it beeps then pressurising any circuit will release the hitch.
My Strickland s lock will release in any position by pressurrising the blade circuit with the hitch unlocked and the same for locking
Most s type hitches will unlock with pressing a button on the sticks and it's a dead handy setup

The ones you really foul on are the ones with a pendulum for sensing which way up the hitch is though often they can be fooled with a well placed bungie cord

 

[V8Druid]

If someone wanted make their own hyd. quick hitch where would you go about finding small enough cylinders? I'm not having any luck.

when you find a source - let me know @Keif .... not easy things to acquire

 

[Monkeybusiness]

Would of just bent the flail tbh, takes a good few seconds of full curl, won’t even disengage on tickover!

Is it an Engcon QH? Mine is a bastard to get open…

 

[V8Druid]

A gieth hitch will unlock if you press the overide button untill it beeps then pressurising any circuit will release the hitch.
My Strickland s lock will release in any position by pressurrising the blade circuit with the hitch unlocked and the same for locking
Most s type hitches will unlock with pressing a button on the sticks and it's a dead handy setup

The ones you really foul on are the ones with a pendulum for sensing which way up the hitch is though often they can be fooled with a well placed bungie cord

or a strategically placed pin under the pendulum

 

[Keif]

when you find a source - let me know @Keif .... not easy things to acquire

The 0:41 mark of the below video is exactly what I need. I suspect this man made his own and I might have to do the same.