Service record Dynamis MV
21 von 36
2021-01-12
3.6
Brakes assembly
3.6.3 Drum brake
The braking force of the drum brakes is optimally adjusted by our fitters.
For safety reasons, regular checking of their functionality is required, as permanent use
may require readjustment of the braking force or even the replacement of a Bowden cable
.
(1+2)
The following drum brake components
are important for adjusting the braking force:
adjusting screw
(A)
, lock nut
(B)
, adjusting
nipple
(C),
holder
(D)
, inner cable
(E)
, locking
lever
(F)
, clamping nipple
(G)
, brake shoes
(H)
Zum Einsetzen des Bowdenzugs:
• (3)
place the adjusting nipple
(C)
with
the adjusting screw
(A)
and lock nut
(B)
at the lower end in the counter holder
(D)
,
• thread the inner cable
(E)
through the
clamping nipple
(G)
,
• insert the clamping nipple
(G)
into the
locking lever
(F)
and
• push the locking lever
(F)
slightly for-
ward towards the adjusting nipple
(C)
so that there is a slight pull between the
nipples.
• Tighten the clamping nipple
(G)
tightly.
• Put the wheel back on and check whe-
ther the brake shoes
(H)
are already
rubbing against the brake body.
• To do this, jack up the wheelchair or
hold it up to the side. The wheel must
be able to turn freely.
• If the brake shoes are already grinding
(without you having operated the ope-
rating lever), loosen the clamping nipple
(G)
and again
• give the locking lever
(F)
more play
• Then tighten the clamping nipple
(G)
again
To adjust the braking force:
• loosen the lock nut
(B)
on the adjusting
screw,
• Tension or slacken the inner cable
(E)
of
the Bowden cable by turning the adjus-
ting screw
(A)
,
• test the pulling force at the top of the
control lever and
• tighten the lock nut
(B)
again.
Possible impairment of the braking force can
result from incorrectly adjusted pulling force of
the Bowden cable, defective Bowden cable, or
dirty brake bodies / brake shoes.
(A)
(D)
(B)
(C)
(E)
(E)
(F)
(G)
(H)
(1)
(2)
(A)
(D)
(H)
(B)
(C)
(E)
(3)
(F)
(G)
