SERVICE BRAKES - AIR TRAILER BRAKES
A 71 A 72
FOOT OPERATED DISK BRAKES
Disc brakes are of wet type, hydraulically
actuated, double pedal with automatic
compensator integrated in the main
brake cylinders.
Both brake pedals must be
latched together when driving on
the road.
Use unlatched pedals for braking
right or left wheel separately
when working in terrain and fields
only.
∗SINGLE AND DOUBLE HOSE AIR
TRAILER BRAKES
Control of air trailer brake is derived from
the foot operated disc brakes and this
works at latched pedals only. The air
brake operation is synchronized with
braking tractor including the brake effect.
Working pressure is set by a pressure
valve (regulator) adjusted to 730 „ 20
kPa. If the pressure drops under 550 -
40 kPa the priority valve disconnects
pneumatic circuits of secondary appli-
ances (front PTO control, PTO clutch
control, torque multiplier etc.).
Disconnecting of secondary appliances
is not signalized by any indicator lamp.
Pedals of foot operated brake
must be connected and latched
when driving tractor with
attached trailer.
PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz
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