HNF-NICOLAI UD1 PedelecW, Manual

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Before every ride
3.2. Checking the brake system
• Perform a brake test when at a standstill before every ride. To do so, pull
each brake lever individually towards the handlebar with normal braking
force. The brake lever must not touch the handlebar grip.
• Move the vehicle back and forth with the brake applied. There must be no
significant play. If there is, get to the root of the cause. The calliper or brake
disc may not be tightened. Tighten them to the torque values in the torque
table in section 9.3.
• For hydraulic disc brakes, the pressure point on the brake lever must be
stable. If the pressure point is not reached after two-thirds of the lever
stroke, pull the lever several times in succession (“pumping”). Check if the
pressure point stiffens. In this case and if the location of the pressure point
moves while riding, the brake system must be bled by HNF-NICOLAI Service
or by a qualified specialist workshop.
• The brake discs must be free of oil. If you find oil on the brake discs, remove
it with an alcohol-soaked cloth.
The pressure point is defined as the position of the lever stroke at which
the brake responds. If the brake works perfectly – i.e. there are no air
bubbles in the hydraulic line – the pressure point will be the same lever
position for each braking process.
3.3. Checking the belt
The Gates Carbon Drive is a maintenance-free, durable system. Nevertheless, the
following points must be considered:
• Are there any foreign objects (e.g. twigs) between the pulley and belt? If yes:
-> Remove them.
• Is the belt heavily soiled? -> If yes: -> Rinse it clean with water.
3.4. Battery: Checking the attachment and charge level
Check whether the battery is firmly in place in the lock and assess whether the
charge level is sufficient for your planned trip.