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Brake Adjustment


matt-the-dj
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hi chaps.

i was looking thru a download from the alko website and it showed on the rear of the hubs 2 little caps which you use to gain access to the star wheel adjusters for the brakes. the problem is i looked on my caravan and i appear not to have this style. My question is this style of adjustment from a certain year onwards and how do i then adjust mine. My caravan is a bailey scorpio 500/5 and its the 1989 model, the brakes are working from what i can feel when towing but i wish to know what to do if they require adjusting in the future.

thanks in advance

matt. l

***** old tow car + ***** old caravan!. .....new tow car in eight weeks.

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i dont know much about the hole on the back bit,

but to adjust them without access you will need to take the wheel and drum off, by removing the centre hub nuts, then you will remove the hole lot slowly in one, make sure you collect the bearing race as you remove the hub, keep this off the floor and free from rubbish.

you will then see the brakes and adjsting screw, you then adjust it up a few clicks at a time, place the hub back on just nip the hub nut back up and try the brakes by hand, once you happy with youe adjustment, you can refit every thing, i would whislt the bearings are out change the greese on them, you will need a new split pin once youve tightened the hub nut,

now to tighten this nut you will need to just nip this up so that you feel slight tension, then back the nut off about 30 degs, up to a quarter off a turn then fit the new split pin, refit the greese cover and your all done,

mike

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i dont know much about the hole on the back bit,

but to adjust them without access you will need to take the wheel and drum off, by removing the centre hub nuts, then you will remove the hole lot slowly in one, make sure you collect the bearing race as you remove the hub, keep this off the floor and free from rubbish.

you will then see the brakes and adjsting screw, you then adjust it up a few clicks at a time, place the hub back on just nip the hub nut back up and try the brakes by hand, once you happy with youe adjustment, you can refit every thing, i would whislt the bearings are out change the greese on them, you will need a new split pin once youve tightened the hub nut,

now to tighten this nut you will need to just nip this up so that you feel slight tension, then back the nut off about 30 degs, up to a quarter off a turn then fit the new split pin, refit the greese cover and your all done,

mike

 

 

My understanding is that if you remove a hub nut you should always replace it with a new one?

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My understanding is that if you remove a hub nut you should always replace it with a new one?

That's correct on the Al-Ko Euro axle with a large "one-shot" nut - it also needs very high torque to tighten up properly - beyond ordinary torque wrenches.

 

That doesn't apply to earlier Al-Ko chassis with small hub nuts just like cars with rear drum brakes.

 

I don't think it's possible to adjust the brakes accurately while the hub is off, although large corrections can be done.

 

As far as I'm aware, all Al-Ko drum brakes should be adjusted using the starwheel visible through a small hole in the back plate of the brakes.

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That's correct on the Al-Ko Euro axle with a large "one-shot" nut - it also needs very high torque to tighten up properly - beyond ordinary torque wrenches.

 

That doesn't apply to earlier Al-Ko chassis with small hub nuts just like cars with rear drum brakes.

 

I don't think it's possible to adjust the brakes accurately while the hub is off, although large corrections can be done.

 

As far as I'm aware, all Al-Ko drum brakes should be adjusted using the starwheel visible through a small hole in the back plate of the brakes.

the trouble is i cant see any form of adjustment at the back of the drum, there are no plugs to removed so i can access to the starwheel.

***** old tow car + ***** old caravan!. .....new tow car in eight weeks.

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the trouble is i cant see any form of adjustment at the back of the drum, there are no plugs to removed so i can access to the starwheel.

 

Is there a hexagon head (like a bolt head) on the back plate? Some brakes are adjusted with this method. If not, and there is no plug, is there a hole without a plug?

Ignore the advice to remove the drum to adjust the brakes, it just isn't possible to achieve the correct clearance other than via the correct adjuster on the backplate.

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Here is the document you require.

 

Brake Adjust

i have this document but, it is still using the starwheel for adjustment and i have not got a bung to pop out to get at the starwheel, do the early alko chassis not have this adjusment, for the record my van is 1989.

***** old tow car + ***** old caravan!. .....new tow car in eight weeks.

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i must be missing something, il have to have another good look.

***** old tow car + ***** old caravan!. .....new tow car in eight weeks.

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Is there a hexagon head (like a bolt head) on the back plate? Some brakes are adjusted with this method. If not, and there is no plug, is there a hole without a plug?

Ignore the advice to remove the drum to adjust the brakes, it just isn't possible to achieve the correct clearance other than via the correct adjuster on the backplate.

 

 

this advice is sound, as you adjust older style cars this way, if you know what your doing,and if you dont have the hole on the drum its the best way,as my alko 1989 brake all 4 dont have adjustment holes.

as for the person who said about the one shot nut that is for the later type chassis, the type used in 1989, has a castle nut which does not need to be replaced unless its damaged.

when you remove the hub you have access to the same star wheel you get via the hole, plus you also can insept you brake shoes and clean them at the same time,

if you are planiing to carry out brake adjustments you should know what your doing or your caravan will brake in may strange ways,

mike

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.

 

 

and if you dont have the hole on the drum its the best way,as my alko 1989 brake all 4 dont have adjustment holes.

[/b]

 

Well, you learn something new every day. I've had a number of vans since 1970, all maintained by me and all brakes adjusted through the back plate, never seen one without an adjustment hole.

Edited by beejay
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If you have star wheel adjustment but no hole in the back-plate for access, why not drill one while you have the hub stripped down, then you won't have to do it that way again.

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MOG do you know what, i never though of that, i will do that when i check mine again towards the end of the season.

 

beejay, ive also got a 1973 marauder but that has holes, i have no idea why my compass aint but it will do by the end of the year, they might of just done a trial in 1989 to not fit the holes, or maybe even, they might of been replaced with aftermarket hubs.

 

anyway matt the dj, if you have no holes or nuts externally to adjust them you will have to do it the old fashioned way,which involves taking the drum off, takes longer but you get to inspect other bits as you go. and dont forget if you do remember drill a hole so next time you dont have to thake it all apart to adjust it again, but check whats behind the bit your drilling first just encase you drill through something you dont want to.

mike

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If you have star wheel adjustment but no hole in the back-plate for access, why not drill one while you have the hub stripped down, then you won't have to do it that way again.

 

opps sorry ment to say thankyou about the hole, so simple i cant beleave i didnt think of it, anyway, thank you mike

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  • 2 years later...

Alko Drum Brakes

 

 

For those who do not have the drum back plate as shown in the owners manual.

 

 

If you look at the back plate you will see four clear plastic bungs and two light green bungs positioned at the bottom of the back plate. The adjuster is located behind the inner green bung. The outer bung is apparently provided to enable the inspection of the shoes (best of luck). The so called star wheel is end on, so by using a short stubby flat bladed screw driver you turn the wheel in the direction of the arrow. The arrow is hair depth and almost invisible. IMPORTANT - On the nearside you adjust the wheel upwards and on the offside downwards. I found the only way to successfully achieve this was to get under the caravan. Adjust the brakes and then operate the brake lever and test adjustment.

 

 

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