trailer has hydralic brakes but tractor has mechnaical brakes

[finnercy]

Hi

Ive got a Kubota B2230 tractor ( 1ton ish) used for gardening work, just bought a used Marshall 2 ton tipping trailer and was pleasantly suprised to find it has brakes, a mechanical handbrake and a hydraulic hose leading to a ram which operates the drums. I'd like to get these working with my tractor what are my options? I want to be able to tow 2 tons safely and with this tractor it needs trailer braking to achieve that. Even inertia operated brakes would do me.

Cheers
Rob

 

[Grandad Pig]

Could you maybe hook up the brakes to a diverter valve or similar. Would need to be hand operated, but might be good downhill and parking. Just a thought.

 

[Lincsman]

I take it the tractor does not come with a Hyd trailer brake connection?

ie; https://www.malpasonline.co.uk/itm/Trailer-Brake-Equipment/Brake-Valve-Male-M22x1-5-VF-Series/112795

 

[Dave W]

You're not going to get the trailer brakes to work with the foot pedal.
you'll either have to convert the trailer to inertia which is unrealistic without major modifications.
Or as said above swap the hydraulic brake coupling for a normal spool connector and use the spool lever by hand as you brake.
Not ideal but about your only simple solution.

 

[Stock]

Here is a link to a company who supply a kit for tractors with mechanical brakes..................................................................

https://www.hydrokit.com/en/produit...king-kit-for-tractors-xrp10241-xpr219517.html

 

[finnercy]

cheers for the info, in answer to one of the questions the tractor does not have a hydraulic brake connection to my knowledge. It does have a brake light switch so there would be possibility of an electical activation option if such a thing exists. That kit above looks interesting, will need to get a price on it. I am suprised this isnt a common requirement with a range of options.

Im not looking to throw much money on this so the manual spool option would be a possible but not something you'd want on or off, you'd want to be able to vary the pressure and use as a last resort if the sh1t hit the fan . I have a spare double spool on the back with level in the cab but currently is on off latching setup set up. If I could control the pressure I could dial it down so it doesnt lock the trailer wheels but just brakes it heavily when needed. My knowledge of hydraulics is a little shakey will need to start googling.

Cheers for the info and keep it coming if you have any more ideas please

 

[milkloss]

I think a spool might be too high a pressure for brakes. We used to have an old artic trailer that had a ram operated by a spool to hold the brakes off against a fairly sturdy spring. Just push it into float and that brakes would activate reasonably well. Not legal for the road I guess but just an idea.

 

[Lincsman]

A lot of trailers are double the weight of the tractor, and can cope without trailer brakes if used with care, your only practical option is the spool valve, it is a little crude but it will help when needs must.
I had a 6600 without a brake port, but it had a loader, we "teed" into the loader circuit and used that, essentially when the loader was off the oil circulated freely but a jab on the lever sent it to the trailer, let the lever go and it released, actually worked well... through windscreen power but it was a 10 tonne trailer with proper brakes.

 

[MF-ANDY]

Check your manual. I doubt the drawer carrying capacity of a 2230 is enough for a 2 ton trailer.

 

[finnercy]

Surprisingly It can lift 1 ton at the 3 point ends and as mini tractors go it is a decent size, with the front loader fitted is probably north of 1250kg so I don't believe towing a 2 ton trailer would cause it serious issues. Buried in the workshop manual it says it can take 500kg draw bar weight and a trailer which when fully loaded is 1.5 ton gross. Probably the most I'd ever be brave enough/foolish enough to pull would be 2 tons gross. No mention of brakes on the trailer in the manual ?.
The tractor is road registered so I am assuming I can legally tow 1.5 ton gross of unbraked trailer on the road?

 

[Dave W]

Unbraked will be 750kg gross. And even that's a bit of a grey area

 

[finnercy]

here a pic of the beast for posterity

 

[Dave W]

here a pic of the beast for posterity

Nice setup

 

[Bobthebuilder]

Does noddy know you’ve nicked his tractor ?

 

[finnercy]

It gets bigger the closer you stand to it ?

 

[Barleycorn]

Back in the eighties it was common to use the spool valve for the brakes. I bought 2 Bryan Legg trailers in 86 and they had diverter valves on the drawbar so you could choose brakes or tipping. (Bloody good trailers, about to do their 34th silaging, but they have a proper brake connection now).

 

[Pistonbroke]

 

[2wheels]

here a pic of the beast for posterity

the cab is big enough.

 

[Andrew]

The tractor is road registered so I am assuming I can legally tow 1.5 ton gross of unbraked trailer on the road?

Legal max trailer weight for any vehicle, car, tractor or lorry is 750kg without brakes.
I think if they’re both made after some date on the 80s then the trailer brakes have to be applied automatically with the tractor footbrake so I would be very careful before spending your money. Do Kubota do a retrofit kit?

 

[finnercy]

Legal max trailer weight for any vehicle, car, tractor or lorry is 750kg without brakes.
I think if they’re both made after some date on the 80s then the trailer brakes have to be applied automatically with the tractor footbrake so I would be very careful before spending your money. Do Kubota do a retrofit kit?

Cheers, if they do I doubt I could afford it, their parts prices are wild. Might ask the local dealer just to see though.