Electric drum brakes and LR stubs/hubs

Hi Kelvin

Westin and AlKo years ago used to have brake ratchets on hydraulic trailer over-ride systems (about the same era as vacuum trailer brake systems were common) but they were removed from the catalogues because they didn't comply.

Things may have changed, but IMHO losing pressure from a hydraulic system is a real issue where with a cable mechanism it's either on or not on (and you adjust it).

There is nothing to stop you fitting secondary cable/mechanical AlKo calipers and lever mechanism onto standard LR rotors in addition to the hydraulic calipers.

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Originally Posted by Lotz-A-Landies

Hi Kelvin

Westin and AlKo years ago used to have brake ratchets on hydraulic trailer over-ride systems (about the same era as vacuum trailer brake systems were common) but they were removed from the catalogues because they didn't comply.

Things may have changed, but IMHO losing pressure from a hydraulic system is a real issue where with a cable mechanism it's either on or not on (and you adjust it).

There is nothing to stop you fitting secondary cable/mechanical AlKo calipers and lever mechanism onto standard LR rotors in addition to the hydraulic calipers.

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Umm interesting......food for thought.

I wonder how KK get away with it

Is their a rego requirement for a handbrake on 750-2500 Kg trailer.
the override handle [spare parts] delivered this month did not have the handbrake lock.


I just did my inspection course for heavy vehicles and hand brake test was not discussed.


over 3500 ton had brake away requirement for a brake to hold the vehicle for 15 minutes to allow wheel chocks. the hydrolic brake trailer we have at work have a seporate air pressure released linkage disc caliper [alko].


the other thing was discussed for NSW was if its not regoed as homemade trailer it cant be modified without engineers reports.

It's under 2T and is home built.....

Davehoos

I have a No.5 registed as home made (because they couldn't find GOF/ADI in the database), does that mean I can fit brakes without an engineers certificate?

Or is it merely be a change signed off by a Blue Slip inspector?

Quote from another forum.....

'Manufacturers should consider the merits of including a parking brake function when designing the braking system. ADR 38/03 clause 8 and 14 provides guidance for parking brake systems.'

Yes, machining the entire hub from a std electric brake drum was what I had in mind, leaving the magnet area untouched if possible. I hadn't given much thought to the extra space needed to the inside for the drum/backing plate, that could be a real issue.


And yes I was taking tube axle, maybe 2 1/2" x 3" seamless? And having oil in this for oil feed wheel bearings. I have access to lathe big enough to machine/true the hub flanges after welding if needed.


Mite have to take a measuring stick and notepad next time I visit local bearing centre...and strip a side off the 'spare' rangie....can't hurt to at least investigate the idea I guess.

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Originally Posted by weeds

when you say tube axle do you mean a land rover housing? if not than I suggest a solid axle. a solid axle with flanges to suit the stubs will be a custom made job, your standard trailer axle manufacture will not want to know you. stubs from a sals is your only option.....well easiest from a machine point of view.

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Ok, what is the differences between the stubs for a Rover housing vs a Sals?


I would have rover stubs (RRC), but if the sals version is easier.....


I could make the axle, be it tube or solid.

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Originally Posted by Rick1970

Ok, what is the differences between the stubs for a Rover housing vs a Sals?


I would have rover stubs (RRC), but if the sals version is easier.....


I could make the axle, be it tube or solid.

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Happy to be correct but from memory the sals stub is flat where it mounts to the housing. The rover axle has steps in it if that makes sense.

I have sals stubs and D1 hubs and calipers.....once again from memory

I also think defender hubs are different to D1 I.e. The offset where the wheels meets the hub, happy to be correct on this as well

yeah, from memory the rover stub has a step/spigot....