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Loosen the two marked screws to be able to open the cover again.
3.6 Maintenance
Do not try to charge the SO4 2ND GEN / SO4 PRO / SO4 PRO 2ND GEN when the battery is already full. This could diminish the battery’s capacity in the long run.
Before every ride, check all screws of the device, especially those of the handle and frontbar, the mudguard and the front and rear wheel. Tighten all screws firmly to ensure safety when
using your SO4 2ND GEN / SO4 PRO / SO4 PRO 2ND GEN.
Before each journey, check that the wheels are undamaged.
Check regularly that the brakes are correctly adjusted. You can adjust the braking force by adjusting the brake cable. If in doubt, contact your dealer.
Thoroughly clean the SO4 2ND GEN / SO4 PRO / SO4 PRO 2ND GEN with a dry cloth after usage. The front and rear ball bearings must be lubricated from time to time. Ordinary bicycle oil
can be used. Oil the area where the axle runs into the wheel to ensure better durability.
3.7 IPX6
The SO4 2ND GEN / SO4 PRO / SO4 PRO 2ND GEN is splash-proof according to IPX6 but not waterproof. You may therefore use the SO4 2ND GEN / SO4 PRO / SO4 PRO 2ND GEN in light
rain and drive through puddles on the ground. You must not immerse the SO4 2ND GEN / SO4 PRO / SO4 PRO 2ND GEN in water or expose it to heavy rain, otherwise the electronics may
be damaged. Further information about the scope of protection according to IPX6 can be found on the Internet.