Brakes - Wisper 905se City Owner's Manual

14

Brakes

14.1 Front: V brake
14.2 The brakes on your Wisper bike are fitted with cut outs which are required by
law. This means that when you pull on either the back or front brake lever the
motor immediately stops working.
How to adjust and maintain your brakes
14.3
Once a month, inspect brake pads for wear. If the grooves in the braking
surface are less than 2 mm deep replace the pads. Replace disc brake pads that
are thinner than 1.0 mm.
To replace V brake pads
14.3.1. Use 5mm Allen key to loosen bolt A and
take the cable out. Use 5mm Allen key
to undo bolt C on the right & left, and
remove the spacers and washers.
14.3.2. Install new brake pads, then with both
pads pressed against the wheel rim,
ensure that distance B (in the diagram)
does not exceed 65mm. To decrease
distance-B, exchange wide & narrow
spacers on each brake pad. Before
finally tightening brake pads, make sure
they are aligned correctly on the rim,
and there is a gap of 1mm between the
top of the rim and the top of the pad.
Hold each pad against the rim (one at a
time) & tighten bolt C. Finally tightening them to 6-8N.m
14.3.3. Insert cable back into bolt A, slot cable guide pipe into holder and fit
protector over guide pipe end. Set cable in bolt A so that the combined
pad/rim clearance (the gaps from left pad to left rim surface and from
right pad to right rim surface) is 2mm, then tighten bolt A. Finally
tightening it to 6-8N.M.
Balance brake arms with screw D. Depress brake lever a few times while
Checking to see that tension is equal for both arms. Pad/rim contact
should occur at the same time each side. Clearance should be 1mm each
side.
14.3.4. Adjust pads so they are properly aligned (see step 2), as tension
adjustment will probably have altered original pad alignment.
Warning: If you are unsure about any part of the installation process you should seek
advice from Wisper service center or qualified mechanic.
Rear: V brake
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