Hydraulic hoses

[Pedrod316]

I am currently using 4 ply hoses to operate a rotating/log grip on a 3.5t machine, problem is the hose fitting's at the rotater keeps striping the thread, think because hoses to rigid causing fitting to come slack then strip thread when hose moves about?

 

Would this problem be solved with a more flexible hose? If so what hose would i need?

 

Cheers

[openspaceman]

I am currently using 4 ply hoses to operate a rotating/log grip on a 3.5t machine, problem is the hose fitting's at the rotater keeps striping the thread, think because hoses to rigid causing fitting to come slack then strip thread when hose moves about?

 

Would this problem be solved with a more flexible hose? If so what hose would i need?

 

Cheers

 

You could try lengthening the hose and twisting a pig tail to absorb the twist or even putting a pair of quick connectors in the line (mind they cause no end of problems if they get hit).

[wisecobandit]

Wouldn't swivel fittings prevent it?

Something similar to this?

Straight Swivel BSPP Hyfitt Hydraulic Swivel Joints Hydraulic Adaptors | eBay

[TimberCutterDartmoor]

Wouldn't swivel fittings prevent it?

Something similar to this?

Straight Swivel BSPP Hyfitt Hydraulic Swivel Joints Hydraulic Adaptors | eBay

 

I've got 13 of those (or v similar) swivels on the top of the forwarder and they are excellent.

 

Gates megaflex hose is brilliant.

[Fairmer]

4SN hose is a bit heavy for running a grab, SAE 100R2-AT in 1/2" is good for 3500 psi.

[Pedrod316]

I thought about using swivel fittings right enough, are these special swivel fittings as look differnt and lot dearer than the normal swivel fittings i have seen, would a more flexiable hose help aswell? 2 ply or the geith you mentioned? Does the harvesters use flexiable geith hoses?

 

Cheers

[Wood wasp]

Are the hoses too short? I've always just had plenty length to allow for flex and spiral guard to keep them all together, never had any problems.

[Pedrod316]

No there is plenty length in them and i have them protected in spiral wrap

[Wood wasp]

I'm not sure exactly what you have fitted but on a rotator the hoses shouldn't really be spinning, might seem daft question but it's not on upside down is it?