pivot steers

[rolyjam]

Have all pivot steers in the low to mid range got the stupid idea of tilting down as you lift the boom, son seems to think that it is something to do with only way design of crowd linkage can be made strong enough. Surprised someone has n't been killed under a pallet when unloading off a lorry as tines go down as you lift and pallet inclined to slide off if you are n't constantly compensating crowd, got straw chopper on one and if you are lifting up will over get crowd and crash to floor,idiot who designed crowd linkage ought to be underneath it when it comes down

 

[Jd Everytime]

I think it's all to do with where your headstock starts off at.
If its vertical it with stay vertical all the way up
But if the bucket is on with the headstock leaning forward at ground level, it will self tip.
Well that's how it works on the pivots I've operated. Matbro, terex, Schaffer.
I've never had any issues with carriage tipping with forks on

 

[Chris W]

All telehandlers have a compensation system that ensures pallet forks stay level as you lift the boom. The geometry of the compensation systems tend to mean a shovel will tip forwards. The only reason pallet forks should tip forwards to a dangerous extent is if non genuine forks or fork carriers are fitted.

 

[rolyjam]

I think it's all to do with where your headstock starts off at.
If its vertical it with stay vertical all the way up
But if the bucket is on with the headstock leaning forward at ground level, it will self tip.
Well that's how it works on the pivots I've operated. Matbro, terex, Schaffer.
I've never had any issues with carriage tipping with forks on

Think ours is classed as a z linkage on Shaffer 5058 ,even if you crowd back all the way still tilts as you go up,trouble with crowding back straw chopper is it overfeeds and jams , and cause you have to keep crowding back to compensate all the time you needs another pair of hands to operate and end up feeding straw into much and blocking , if went up level instead of tilting could feed in straw sensibly.

 

[rolyjam]

All telehandlers have a compensation system that ensures pallet forks stay level as you lift the boom. The geometry of the compensation systems tend to mean a shovel will tip forwards. The only reason pallet forks should tip forwards to a dangerous extent is if non genuine forks or fork carriers are fitted.

Don't know about telehandlers but the old non self levelling tractor loaders I've used bucket leaned back as you lifted and the self levelling ones stayed level , this pivot steer crowds down as you lift with just headstock on, local contractor got similar machine and his does the same

 

[davidroberts30]

Cant say my 310 does this

 

[TripleSix]

I've noticed that on an MLA.

I think the linkage geometry is setup for bucket work rather than firks

 

[marco]

What make of loader?

 

[rolyjam]

What make of loader?

Schaffer 5058

 

[Chris W]

Don't know about telehandlers but the old non self levelling tractor loaders I've used bucket leaned back as you lifted and the self levelling ones stayed level , this pivot steer crowds down as you lift with just headstock on, local contractor got similar machine and his does the same

tractor loaders like wheel loaders have mechanical links to make the levelling system work, for obvious reasons telescopic machines have to do it with hydraulics which dont give quite as accurate a system. More than anything the carriage position at ground level is critical. The system is likely to be designed around the standard OEM pallet forks. Shovels, bale spreaders etc are unlikely to self level properly.

 

[rolyjam]

tractor loaders like wheel loaders have mechanical links to make the levelling system work, for obvious reasons telescopic machines have to do it with hydraulics which dont give quite as accurate a system. More than anything the carriage position at ground level is critical. The system is likely to be designed around the standard OEM pallet forks. Shovels, bale spreaders etc are unlikely to self level properly.

Just a basic loader ,not telescopic

 

[milkloss]

Is the relief valve for the tilt ram leaking by?
are the pins badly worn?

 

[Monty]

This one seems to lift level

 

[rolyjam]

This one seems to lift level

Wish mine was like that,different linkage to headstock, crowd ram on ours does not go to top of linkage like that one ,goes to middle and bar goes from top pivot where that ram is on that one to headstock

 

[Farmer_Joe]

Sounds like yours is faulty they should have compensator rams but these can be bypassed if someone felt they wanted too

 

[ACEngineering]

Sounds like yours is faulty they should have compensator rams but these can be bypassed if someone felt they wanted too

It's a loading shovel style boom so fairly sure there are no self level or compensation rams.
It's all done mechanically.

BUT schaffer often had different loader booms for certain jobs, ie one more suited to bucket work and one that had higher lift.

 

[Farmer_Joe]

I’m sure our 1970 something trackmarshall even had mechanical compensation on it

 

[ACEngineering]

I’m sure our 1970 something trackmarshall even had mechanical compensation on it

That's what I said mechanical. No self level rams involved.

 

[335d]

Has it a non standard headstock fitted?
possibly geometry not correct were the z linkage attaches to the headstock, will mean it won’t stay level.

 

[rolyjam]

That's the machine

Has it a non standard headstock fitted?
possibly geometry not correct were the z linkage attaches to the headstock, will mean it won’t stay level.

That's the machine parts list cover ,as can be seen linkage is different than one in your post but would seem to be as fitted by Schaffer