36
SM_151815_rev00
Service Manual DEVILLE 35 since year 2017
If you’ve equalized your fork, you may have some internal pressure from the production process. You can eliminate this
pressure by slipping a thin zip tie between your left dust seal and your stanchion until you hear the sound of air
escaping. Then reset your pressure and equalize your air chambers.
If you’ve tried all that and your fork is still hard, email customer service and they’ll give you a hand.
My fork was upside down or on its side and now it feels like there’s no hydraulic control.
Your cartridge has depurged – air has entered the hydraulic system. Open bath cartridges like the one used in your fork
allow air to mix with oil. The cartridge purges itself as you ride. You can purge the fork even faster by cycling it through
its full travel 5-10 times.
If it is becoming increasingly difficult to purge your cartridge, it may be time for an oil change. Contact your closest BOS
authorized service center for a basic or a full service.
I have about 5mm of travel unused when I ride normally.
Our forks are designed to be very progressive at the end of travel to give you a bottomless feeling. This means that
those last couple millimeters of travel might only be used on the biggest hits or when you case a landing. You can think
of them as insurance to get you out of the trickiest situations. If you have more than about 5% of your travel unused, try
lowering your air pressure by 5PSI and check your compression settings. If your compression settings are much harder
than our recommended values, try bringing them closer to the base settings in your product’s user manual.
I have grease/oil coming out of my brand new fork seals.
This is not unusual at the beginning of the life of a fork. Clean off the stanchions and the seals and it will stop after a few
rides.
My fork has been sitting for a couple of weeks and some oil came out of the seal when I rode it the first time.
BOS seals can let out a little bit of oil when they have been sitting and dried out. Wipe off any oil, and none more will
come out when the seal is lubricated again.
I have grease/oil coming out of my used fork seals.
It’s time for a service! Contact your nearest BOS authorized service center for a full service.
But I haven’t reached your recommended service interval yet.
Our recommended service intervals cannot cover 100% of customer’s usage cases. Use in wet, muddy conditions;
storage out in the sun; frequent use; or improper care can all cause your seals to wear out more quickly.
For any other questions, please refer to our FAQ page at http://www.bosmtb.com/faq.html or send us a message at