COLORADO 344/6960 Instruction Manual Download

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BRAKE MAINTENANCE

1.  Check cables are corrosion free and lubricated to maintain smooth function.
2.  Check all cables are free of kinks or frayed section, replace as necessary.
3.  From time to time check all the retaining bolts are secure including those

of the pads.

4. Replace lost cable end protectors to avoid cables fraying.
5. To assure smooth braking, wheels must run true and be correctly adjusted, with the

rim brake tracks free from dents and kinks. The brake blocks should be in correct

alignment with the rim brake track. See your dealer if you are in any doubt

regarding wheel and brake adjustment.

6. We recommend that only genuine replacement parts are used for safety critical

components like brake friction pads and cables. if in doubt consult your retailer.

'V' BRAKE ADJUSTMENT

Although every effort has been made to ensure the brakes are set in a manner that
will ensure minimal re-adjustment prior to riding it is not possible to prevent transit
movement or disturbance when unpacking. In addition to the 5mm and 6mm allen key
wrenches and a multi metric spanner included with your cycle you will find the following
tools useful for correct assembly and adjustment of your cycle; a small adjustable wrench
(up to 20mm), a pair of pliers with wire cutting facility, a small cross cut screwdriver, and
a small flat blade screwdriver. For certain maintenance and replacement work specific
cycle tools are needed, if in any doubt contact your cycle supplier.

Below are simple instructions for general brake setting.

1. If the cable nipple is not located in to its housing in
the lever then simply align the slots in the cable adjuster
with  the  slot  in  the  brake  body  and  fit  the  nipple  into
the  housing.  Pull  the  cable  into  position  through  the
slots  and  turn  the  adjuster  sufficient  to  disrupt  slot
alignment (take care the ferrule is located into the cable
adjuster.)

2. Ensure the fittings (lead pipe and rubber boot) are in
position at the brake end of the cable.

3.  Loosen  the  brake  pad  retaining  nut  so  the  pad  can
move  freely  then  push  the  brake  arm  so  that  the  pad
can be positioned with its surface parallel to the rim to
keep  the  pad  away  from  the  tyre  (Take  care  to  match
the curve of the rim with any curvature along the length
of the pads. Tighten the pad in position (6-8Nm). Repeat
on the left and on the right side.

Nipple

Slot

Lead Pipe

Rubber
Boot

Reach Adjuster

Screw

Ferrule

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5a.

Brake Pipe
Hanger

Pinch
Bolt

2-3mm

65mm

5b.

Tension
Adjuster

4. Locate the brake cable wire into position behind
the pinch bolt (some have a hole to thread the wire
through). Loosely secure the wire in position.

5.  Locate  the  curved  lead  pipe  into  the  brake  lead
pipe hanger. Loosen the pinch bolt and pull the wire
through  so  that  the  pads  come  into  contact  with
the  rim  surface  (5a).  Set  the  pads  to  have  2-3mm
of clearance to the rim on both sides (5b). Tighten
the pinch bolt securely (6-8Nm) and check that the
wire  is  not  damaged  or  cut  through.  The  distance
between the lead pipe tip and the pinch bolt should
not be less than 65mm. You can exchange positions
of  the  thick  and  thin  washers  behind  the  pads  to
achieve this.

6. Test the brake function, the brake lever should
move through no more than approx 20% - 30% of
its travel before the pads are firmly against the rim.

7. If you find when you pull the brake lever that one
pad hits the rim before the other. You will need to
alter the spring tension in the brake arms. You can
increase spring tension by screwing the adjuster in
clockwise and reduce by turning anti clockwise. The
pad that hits first needs the tension reducing, or you
can increase the tension in the opposing arm ( judge
this by the relative tension adjuster positions). It is
wise to first check that the wheel is centrally located
in the frame or forks before commencing with this
adjustment.

8. New brake cables will stretch; this can be adjusted
by pulling more cable through the pinch bolt or by
using the cable adjuster at the lever. Take care if you
screw the adjuster outwards to return the adjuster
locking ring so it is firmly up against the brake lever
body. IT IS NOT SAFE TO RELY UPON THE THREAD OF
THE LEVER ALONE TO SUPPORT BRAKING FORCES.

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