l Checking the brake torque at the take-up side
j
KZ::
REPLACEMENT OF MAIN BRAKE
1.
Remove the reel belt and the reel block
FFC
(Full
Flat Cable).
2.
Remove the cut washer
@
off the brake shifter.
3.
Unscrew the four screws
Q
and then the
take-
up reel retainer.
4.
Remove the reel block assembly
@
downward.
5.
Remove the cut washer
0
first and then the reel
pulley.
6.
Unscrew the two screws
@
and detach the idler
assembly.
-upreel
7.
Unhook the back tension lever spring
@
and
remove the back tension lever
Q.
(Undo the
hook under the reel chassis.)
8.
Open the shifter latch
8
and remove the brake
shifter assembly
@I.
9.
Release the reel disk catchesand
@
then remove
the left and right reel disk assemblies
8
and
0.
10.
Finally remove the main brake levers
0
and the
main brake spring
@
.
1.
2.
0
1.
2.
wchanism
chassis
Figure
l-43.
Remove the cassette housing control assembly.
Slowly rotate the torque gauge in the clockwise
(CW)
direction and counterclockwise
(CCW)
direction of the take-up brake so that the reel
disk and the indicator of the torque gauge
rotate at an equal rate. Check that the values
are within the range of
CCW
direction
=
250
to
750
gem,
CW
direction
=
90
to
130
g-cm,
and
that the brake torque in the
CCW
direction is at
least twice as high as that in the CW direction.
Adjustment of the brake torque at the supply
side and the take-up side
If the supply or take-up brake torque is outside
the range, clean the supply or take-up reel disk
break lever felt, then recheck the torque.
If the supply or take-up brake torque is still
outside the range, replace the main brake or the
main brake spring.
Figure
l-44.
Note:
When the main brake is replaced, perform the
height checking and adjustment (see page
25),
and
the brake torque checking (see page
30).
31
To Next Page
Loading...
