Read on the forum somewhere the question of trailer or "A" frame to cart an additional vehicle behind a motor home .
Have a question . If you need trailer brakes for trailers over 750kg GVM what are the rules for "A" frames or two wheel trailers with a second vehicle in tow like a patrol or even a suzzie ?.
The brakes on the prime mover (Motorhome )are only rated for it's weight not the combined weight of both prime mover and second vehicle regardless of the tow method used .
Anyone know the answer ?
dave06 said
11:30 AM Apr 24, 2009
the towed vehicle must be braked in accordance with it's weight capabilities and tow vehicle restrictions
either the trailer or the vehicle combination must have tow vehicle actuation brakes,
normally the two wheeled trailer has the brakes but in some cases the vehicle being piggy backed must be braked as well, depending on weight of piggy backed vehicle
Wombat 280 said
12:04 PM Apr 24, 2009
dave06 wrote:
the towed vehicle must be braked in accordance with it's weight capabilities and tow vehicle restrictions
either the trailer or the vehicle combination must have tow vehicle actuation brakes,
normally the two wheeled trailer has the brakes but in some cases the vehicle being piggy backed must be braked as well, depending on weight of piggy backed vehicle
Thanks Dave, I thought there was more to it than just hooking up and going ,
On the forum someone asked the question about towing a patrol behind a MH as they had just fitted a 3000kg towbar After a few days I thought about it again and started to consider braking regs when my trailer rego came in and it mentioned brakes .
as amatter of interest how are "A" framed vehicle brakes actuated from the tow vehicle, is that another auto sparkys magic trick .
This techo forum is paying off with good advice
dave06 said
12:41 PM Apr 24, 2009
ah now you've got my weak spot (one of many) apparently there is an electronic "actuator" that somehow attaches to the rear brake setup that is installed, now this I don't know of but it only comes in where the weight is considered "excessive"
whether the 3 tonne weight of the patrol exceeds this with a braked dolly or not I am not sure, perhaps an inquiry to the motor vehicle department
I would think, given my limited knowledge on this, that the braked dolly would be sufficient, assuming the dolly was constructed of heavy truck like materials
our workshop here is not equipped to deal with this and our mechanics don't know how they do it either,
one suggested a simple pulling device that activated the handbrake cables on the towed vehicle??, without ratcheting on of course
Wombat 280 said
06:35 PM Apr 24, 2009
I'm now interested in how it all works so I will look into it and get back to ya, as they say in Politics
Wombat 280 said
12:07 AM Apr 25, 2009
Found heaps on the net on the topic all States basically say the following which is a extract from the SA Fact Sheet on A Frames
If I'm reading this right the towing vehicle mass must be 3.5 times greater than the towed vehicle. I would assume a Bus / MH and a Patrol would be okay on an approved "A" Frame without actuated brakes on the towed vehicle .
As a safety precaution, the combination shall have a towed mass ratio of at least 3.5:1 that is, the mass of the towing vehicle must be at least 3.5 times the mass of the towed vehicle. This ratio is to provide for adequate levels of vehicle stability, handling and braking performance. Braking requirements The requirement for a 3.5:1 towed mass ratio is designed to give a combination adequate braking without the need for the brakes of the towed vehicle to be operated by the driver seated in the towing vehicle.
-- Edited by Wombat 280 on Saturday 25th of April 2009 12:23:02 AM
dave06 said
10:22 AM Apr 25, 2009
so that would mean that the bus would have to be 10.5 ton to be able to tow a 3 ton nissan without brakes
Wombat 280 said
09:51 PM Apr 25, 2009
dave06 wrote:
so that would mean that the bus would have to be 10.5 ton to be able to tow a 3 ton nissan without brakes
Not sure what the weight of a average MH / Bus is but if it's the big bugger that comes in at about $800.000.00 then I would expect 10.5 tons is about right for an all up prime mover weight ..
If I had the 800,000 then towing a second vehicle would be a waste of time I'd just hire one when I got there .
I think a patrol is an over kill by a suzzi on an "A" frame may be more near the mark for most MH/ Bus
One other thing that came up in reading the regs , It's illegal to have a tow bar protrude beyond the vehicle body when not actually towing something . The regs up till recently only stated that the towbar shall not obsecure the number plate when not towing something . That pic of the bike rack I posted a few weks back is certainly out in that case
dave06 said
10:25 AM Apr 26, 2009
yep sure was, if I was going to tow something behind me and I was full time I would go the trailer, there are some heavy plant, fully braked trailers on ebay, rated at 4 - 5 ton, I would put the nissan on that and then build a little "shed" on the front for other "stuff"
there are little number plates that one may buy through the dmv just for the purpose of racks
Have a question . If you need trailer brakes for trailers over 750kg GVM what are the rules for "A" frames or two wheel trailers with a second vehicle in tow like a patrol or even a suzzie ?.
The brakes on the prime mover (Motorhome )are only rated for it's weight not the combined weight of both prime mover and second vehicle regardless of the tow method used .
Anyone know the answer ?
On the forum someone asked the question about towing a patrol behind a MH as they had just fitted a 3000kg towbar After a few days I thought about it again and started to consider braking regs when my trailer rego came in and it mentioned brakes .
as amatter of interest how are "A" framed vehicle brakes actuated from the tow vehicle, is that another auto sparkys magic trick .
This techo forum is paying off with good advice
If I'm reading this right the towing vehicle mass must be 3.5 times greater than the towed vehicle. I would assume a Bus / MH and a Patrol would be okay on an approved "A" Frame without actuated brakes on the towed vehicle .
As a safety precaution, the
combination shall have a towed mass
ratio of at least 3.5:1 that is, the
mass of the towing vehicle must be at
least 3.5 times the mass of the towed
vehicle. This ratio is to provide for
adequate levels of vehicle stability,
handling and braking performance.
Braking requirements
The requirement for a 3.5:1 towed
mass ratio is designed to give a
combination adequate braking
without the need for the brakes of the
towed vehicle to be operated by the
driver seated in the towing vehicle.
-- Edited by Wombat 280 on Saturday 25th of April 2009 12:23:02 AM
If I had the 800,000 then towing a second vehicle would be a waste of time I'd just hire one when I got there .
I think a patrol is an over kill by a suzzi on an "A" frame may be more near the mark for most MH/ Bus
One other thing that came up in reading the regs , It's illegal to have a tow bar protrude beyond the vehicle body when not actually towing something . The regs up till recently only stated that the towbar shall not obsecure the number plate when not towing something . That pic of the bike rack I posted a few weks back is certainly out in that case