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Talk about the different aspects of your tow car and tow advice.

Reversing with an over run brake.

replies: 14
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07 Apr 2018 @ 15:34:53 pm
Erik Groothuijzen
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My very old Slipstream Mk4 had a lock to lock out the over run brake when reversing. The caravan refused to move without locking it out. The big danger was that one sometimes forgot to take the lock out of the way and then have no over run brakes at all! I want to buy a 2005 Gypsey Regal, but I do not see a mechanical lockout. What is the experience of reversing with these newer type caravans that don't have an over run brake lockout at all?
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07 Apr 2018 @ 21:14:42 pm
HM
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Hi Erik.

If adjusted correctly, the brakes will release outomatically when reversing.

 

The Happy Campers.
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07 Apr 2018 @ 22:50:23 pm
Anonymous
Erik
I have a 2003 gypsey regal blue series so I'm guessing it is nearly identical to the one you are looking at. In general I have no issues with reversing the caravan. Maybe once in a while if you are going uphill you may feel the brake isn't releasing. But if you roll forward a bit it will release and you can go backwards without any further issues.
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08 Apr 2018 @ 08:13:48 am
Somer Kamper
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https://www.caravanparks.com/35.Caravan-Camping-Forums-Karavaan-teen-bult-uit-stoot.htm?forumaction=1&loadcategory=1012&loadpost=250142370&highlight=reversing#ForumsAnchor
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09 Apr 2018 @ 07:17:34 am
Leon
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The link Hans quoted would provide what you need.  Remember:

  1. If the wheel rolls backwards the brake on the new caravans should not engage.
  2. You will experience difficulty to reverse when you did brake on a down hill and would like to move backwards directly after as the brakes already did engage on the downhill.
  3. You must make sure that the brakes are set properly as this has a direct influence on the effectiveness of your handbrake when the caravan moves backwards.  If not set correctly the handbrake would then not work correctly.

So technology got rid of the reverse lock, but it will however give you trouble until you sorted the way it works out for yourself.

Sonder Jesus is ek niks! ! ! !
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09 Apr 2018 @ 08:18:03 am
Lennie
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Erik, you can try this :-

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09 Apr 2018 @ 11:23:51 am
Jaco van Rooyen
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Also made myself a gadget that do function in the same way as the one on Lennie's foto and it works perfectly.
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11 Apr 2018 @ 14:44:24 pm
Leon
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Erik, you can try this :-

This is one way to solve the problem.  But remember when you have braked on a down hill the run in brake of the caravan is already activated (pushed in).  You will need to make a plan to get the brake arm extended to fit the gadget.

All on a down hill this could be a bit of a trick but not impossible.

 

Sonder Jesus is ek niks! ! ! !
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11 Apr 2018 @ 15:03:20 pm
Fred
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With the older type of release mechanisms like in die photo, handling the caravan in reverse by hand can be quite hazardous as the parking brake also does not work when reversing.  I once almost ran my caravan down an decline as I did not appreciate this fact.  Three of us could barely stop the van going over a precipice.  You only make this mistake once.

I am just wondering Lennie, why you need such a contraption as the hitch looks like the one with automatic reverse release.

Het is beter rijk te leven dan rijk te sterven
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11 Apr 2018 @ 20:00:44 pm
Lennie
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Fred I do not need the gadget anymore as I now have a mover.  However, before the mover I had to move my 2-ton caravan backwards and uphill a few inches before it would disengage and then I could smell my vehicle's clutch.  This "reverst assist" resolved this problem completely.  

With regards to downhill stopping before reversing in Leon's last paragraph, I managed the problem by applying the handbrake and moving the vehicle slighty forward which then allowed the "reverst assist" to slip in.

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11 Apr 2018 @ 20:30:32 pm
HM
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Handy gadget to have even if one has movers.

 

 

 

The Happy Campers.
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14 Apr 2018 @ 03:42:17 am
Coenie
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According to the Al-co brochure: "When reversing, the towing vehicle pushes in the draw shaft of the overrun device. The brake shoes are pressed against the brake drum via brake linkage, Bowden cable and expander clutch. The brake drum turns backwards, taking the trailing shoe with it. The transmission lever swings back and allows the draw shaft to complete it’s full travel. The braking effect is virtually cancelled out and the wheels can revolve freely in reverse". My personal experiences however on heavier caravans are to install a heavy duty shock in order for above mentioned mechanism to work properly when reversing.
Om te kamp is 'n voorreg!
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14 Apr 2018 @ 07:53:42 am
Lennie
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"My personal experiences however on heavier caravans are to install a heavy duty shock in order for above mentioned mechanism to work properly when reversing."

However, care should be taken that a heavier duty shock than prescribed by the manufacturer may result in less efficient normal braking.
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14 Apr 2018 @ 09:20:25 am
Anonymous
According to the Al-co brochure: "When reversing, the towing vehicle pushes in the draw shaft of the overrun device. The brake shoes are pressed against the brake drum via brake linkage, Bowden cable and expander clutch. The brake drum turns backwards, taking the trailing shoe with it. The transmission lever swings back and allows the draw shaft to complete it’s full travel. The braking effect is virtually cancelled out and the wheels can revolve freely in reverse". My personal experiences however on heavier caravans are to install a heavy duty shock in order for above mentioned mechanism to work properly when reversing.

"My personal experiences however on heavier caravans are to install a heavy duty shock in order for above mentioned mechanism to work properly when reversing."

However, care should be taken that a heavier duty shock than prescribed by the manufacturer may result in less efficient normal braking.

Drum brakes, by design, pull the brake pads onto the drum as it brakes, thereby increasing the braking force.
The reason you sometimes can't reverse is because the brakes are locked forward because you braked hard before reversing.
Lennie has it right.
If you put in the heavy duty shock you are increasing the amount of force that needs to be applied to engage the brake fully, so it will help with your reversing problem. But will put more strain on your tow vehicles brakes when towing the caravan.
The problem is that it will also have an influence when you have to brake the caravan in an emergency or if for instance you have sway and need to slow down, because instead of the caravan brakes engaging as you lift off the petrol the stronger shock will stop the brakes from engaging!
When it comes to safety devices it is best to stay away from tinkering with things, unless you believe you have more engineering expertise than the manufacturer that makes thousands of caravans a year, or the oem of the towing/braking mechanism that makes tens of thousands a year.

You may as well solve the problem by intentionally weakening the brakes on your towing car so you can't stop too fast causing the caravan brakes to lock up.

Sorry for the rant, but I hate seeing good caravans in pieces next to highways!
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14 Apr 2018 @ 13:30:09 pm
Fred
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Good advice Chris!

Het is beter rijk te leven dan rijk te sterven
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