Maintaining Your DMS Suspension

Recently many different people have asked the same question: "How often do I need to service my suspension?"

The answer depends on a lot of variables. No TWO struts will require exactly the same interval between maintenance. There are simply too many factors affecting the time between services such as:

  1. the type of climate conditions: hot, cold, snow, salt, dust, etc.
  2. the different types of surfaces: asphalt, gravel, rough roads, snow, ice, street, etc.
  3. the type of driving: hard acceleration, rally, solo, auto-x, hard braking, etc.

All these factors will play into determining time between regular maintenance and servicing. More important than time between is to identify the symptoms needing to be addressed and being able to associate them with a corrective action. Again, not all struts are the same, but it is NEVER a bad idea to remove, inspect and re-grease or even send for strut body servicing if required at least on a yearly basis.

Some symptoms of struts needing attention can vary from slight squeaking sounds, all the way to an insert not travelling at all. Maybe some minor clunking sounds, or even excessive overheating of the piston resulting in fading of the rebound and bump controls. When driving the vehicle, it may feel like the strut is lagging in its reaction time, not absorbing the bumps and hits as it should. It is important however for all end users to remember the following:

"A well maintained set of suspension will last for many years before needing any sort of major replacement, but one that is not will break down and fail prematurely. "

The nice thing about ALL DMS products is that they can be fully re-built. All of the parts can be replaced without replacing the entire assembly.

This sets DMS apart from many competitors where you must replace the entire assemblies when they wear. Our complete rebuilds restore the shocks to near-brand new condition and at a fraction of the cost to replace them. Over time this translates to a lower cost of ownership.

Grease, seals, adjusters, and stickers can all be purchased from your local distributor. Full rebuilds are now performed at the DMS North America facility where in the past they were shipped back to DMS Australia.

DMS strut assembly maintenance / servicing can go from just taking the units off of the car, removing the insert from the body, inspecting them for straightness, cracks, scratches, then cleaning out the tube and re-packing it with new grease and seal. A complete INSERT rebuild is at the other end of the scale and includes replacement of the gas piston, new oil, valve assembly, etc.

The three types of maintenance most encountered for all DMS units are as follows .

  1. Body Re-greasing Kit: The parts included in this kit are new grease, seals, trademark stickers and nylon lock nut. During this servicing, all components are inspected for abnormal wear and straightness, all parts cleaned and reassembled ready for new alignment. This kit is designed for the end user and comes complete with instructions so that the units do not have to be sent back to the service facility all the time. IT IS VERY IMPORTANT TO FOLLOW THE INSTRUCTIONS SUPPLIED WITH THE KIT.
  2. Body Service Kit #2: This kit includes all the components of the re-greasing kit plus two new bushes per strut body, lock nut, and red bump adjuster cap. Adjuster maintenance and cleaning as well as insert dyno testing and inspection. This is something that requires special tools and training to do properly and is recommended ONLY by authorised personnel.
  3. Rebuild Kit: This kit only services the strut insert, NOT THE BODY. Parts included are shaft and valving assembly, wear band, gas piston assembly, gland pack assembly, circlips, bump cap, rebound spacer, nylon lock nut as well as bump adjuster and protective red cap. Prices are different for 40mm, 50mm, and 60mm

Kit

Parts Included

Labor

Each (CAD)

       

re-greasing

Grease

.5hr x $65

$100

 

Seal

   
 

Sticker

   
  Nylon Nut    
       

service #2

Grease

.75hr x $65

$187.50

 

Seal

   
 

Sticker

   
 

adj sticker

   
 

grub nut

   
 

2x bushes

   
  Nylon Nut    
       

50mm rebuild

Shaft and Valving

1.75hr x $65

$562.50

 

Wear Band

   
 

Gas Piston

   
 

Gland Pack

   
 

2x circlips

   
 

Bump Cap

   
 

grub screw

   
 

Rebound spacer

   
 

Bump rubber

   
 

Bump adj. Cover

   
 

Bump Adjuster

   
       

40mm rebuild

Shaft and Valving

1.5hr x $65

$450.00

 

Wear Band

   
 

Gas Piston

   
 

Gland Pack

   
 

2x circlips

   
 

Bump Cap

   
 

grub screw

   
 

Rebound spacer

   
 

Bump rubber

   
 

Bump adj. Cover

   
 

Bump Adjuster

   

 

 

 

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