OPERATION No MA. 453=0 : Ch J k’
( c
zng
and adjjusfing thr hydraulk brake rontrol
Op. MA. 453-O 3
III. CHECKING BRAKE PEDAL FREE PLAY
1 st Fitting
2nd Fitting
1 5 111 \ (I I /‘)7-t __t
i%
+
1.
Turn screw ( 1 ) to obtain a clearance of
s
E
(( J )) ~~ 0.05 to 3 mm
-ii
Tighten lock-nut ( 2 ).
2 2. Ch k’ ec Ing operation of brake pedal :
a) Release pressure in system.
Set manual height control to /or! /~~.s\‘itio~/
Slacken pressure regulator bleed screw.
( I/ Ill<, I <~/liClC~ is /ill1 rl i, ill, N I~tYlk~~ n~-rllrlll,Inlo,~. nc/un/1 II?<, /I< r/al.
hnke nr c111uu/n/0,. ).
b) Depress pedal three or four times to move the control slide valve to the end of its stroke, and ensure that
pedal returns freely to its stop.
There should be no variation of clearance
o
J
)) as initially set.
Tighten pressure regulator bleed screw.
IV. ADJUSTING THE STOPLAMP SWITCH
1.
Check adjustment of free play on brake pedal ( see above ).
2. Adiusting the stoplamp
The stoplamps must light as soon as the pedal contacts the brake valve.
Bend support plate u a )) of the switch in order to achieve this condition.
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