2022 Fischer Operating Instructions en V3.2

Vapour bubble formation on disc brakes

In particular, brake discs are subject to wear. Have these safety-critical components regularly inspected by an expert orFischer customer service techni cian for wear and replace them, if necessary.

If your pedelec comes equipped with a converter, which makes it possible to operate hydraulic brakes with mechanical brake levers, read the at tached component manufacturer’s operat ing instructions before using it. Almost all modern brakes provide considerably more braking power than was available for bicycles/ pedelecs in the past. Carefully familiarise yourself with the

Avoid permanently braking for long periods, as can be the case during long, steep descents. Otherwise, bubbles may form and a total failure of the braking system may occur. Severe falls and injuries may result. The brake lever may not be applied if the pedelec is on its side or up side down. Otherwise air bubbles can enter the hydraulic system which could cause the brakes to fail. After transporting the pedelec, check if the pressure point of the brakes seems softer than before. Then slowly apply the brake a few times. By doing this, air can be discharged from the brake system. If the pressure point remains soft, please do not use your pedelec The specialist/Fischer customer service techni cian must bleed the brake. You can avoid this problem by ap plying the brake lever before trans porting your pedelec and then fixing it in this position using a strap. This prevents air from entering into the hydraulic system.

brakes, practise using them and emergency braking, starting on safe ground with no traffic before setting off onto roads with traffic.

Source: Shimano ® techdocs

Please do not touch the brake disc while it is rotating or directly after braking. Otherwise injuries or burns

may result.

If you ride on a long or very steep slope, do not brake constantly or only us

ing one brake. This could lead to the brakes overheating and loss of braking force.

Source: Shimano ® techdocs

You are braking properly and safely if you use both brakes equally. The only exception is if you are cycling in slippery conditions such as on sand or a smooth surface. You should then exercise great care, slowing yourself down using the rear brake. Other wise there is the risk of the front wheel slip ping out to the side and causing a fall.

When you come to cleaning the braking system, please first read the instructions provided by the

component manufacturer.

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