Home » Repairs & Maintenance » Upgrade Begins with Replacing Broken Caravan Springs

Upgrade Begins with Replacing Broken Caravan Springs

by | Aug 26, 2017 | Repairs & Maintenance | 0 comments

Broken or even damaged caravan springs should be discovered at caravan servicing. In fact, caravans should be re-weighed, and the coupling head weight should be reviewed during this service.

Upgrading your rig is not for everyone and certainly not for later-model caravans on the roads today.

Check out the YouTube video below. This fellow in America pulled into the nearest RV repairer with what seemed to be a good repair job—or was it? In America, yes, but some Australian dealers and repairs are performing the same ritual when replacing broken caravan springs.

Incredibly, the RV springs broke, and the repairer put the same-size spring back into the suspension. This RV or caravan was 100 kg overweight.

Have a look at the finished job and the spring camber. There is no room left for compression.

Springs must compress to perform correctly. Springs do not compress when at full load. This poor bloke got all this work done and is still unaware.

How should I upgrade a broken spring?

Decisions from small upgrades to significant upgrades need to be made at this point to protect your investment.

A weighbridge should have been the first port of call. Taking your rig over a weighbridge will help accurately determine your load and ensure your suspension is not overloaded. Similarly, you don’t want your suspension to be weighted too highly, or you will experience a very stiff ride. So, ensuring you have an accurate weight of your caravan or trailer is critical.

The next consideration would be the bearing limitations of the axle, the most common of which are listed below:

  • Ford or Slimline 1450kg
  • Parallel  1600kg
  • Dexter 1800kg
  • 2000kg

If I were broken down with 2000kg bearings with a weighbridge certificate of 1650kg, I would look at 1800kg spring replacements.

Springs should be purchased to match the weighbridge certificate. So now I have selected springs that suit my weight, with a maximum loading of approximately 10%.

Identifying and Measuring Springs

A number of springs are on the market, and it is very important to identify the correct springs and take accurate measurements to match existing hangers.

Types of spring and beam suspension include:

  • Slipper Springs
  • Shackle Springs
  • Rocker Roller Springs
  • Outback Springs

To fit your springs to the existing hangers welded to the chassis, it is important to confirm a number of measurements. Failing to check these can result in a change of axle position—the springs will not fit within existing guards, or they will not fit into existing hangers.

You can confirm the required spring measurements using our helpful guidelines document, available for download here.

Check with the Experts

Finally, I must worry about matching my axle and bearing sizes to my weight load. I can do this when I get home. The other option is to lighten my load and save my wallet because I am on a budget. Another good article is on how to adjust your caravan wheel alignment.

However, if you do have a budget to upgrade, call the experts at Couplemate. We can certainly help you explore the options, from replacement springs to DIY axle upgrades.

If you suspect your van is at its limits, haul it down to the weighbridge and get a certificate.

Then ring one of my staff or send us a message with a few photos and some ideas on what you want to achieve.

steve.wotherspoon@couplemate.com.au or 0733483822

Broken Caravan Springs – detect before a disaster.


Submit a Comment

Your email address will not be published. Required fields are marked *