63
DRIVING OPERATION
C221 C222 C223
SERVICE BRAKES
Disc brakes are of disc, wet,
hydraulically actuated, double pedal type
with automatic pressure compensator.
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.
Note: When driving downhill at steep
descent with a trailer or semi-trailer that
are equipped with air or hydraulic
brakes, it is necessary to brake with
service brake already from the beginning
of decline!
AIR BRAKES OF TRAILERS AND
SEMI-TRAILERS
Control of air brakes of trailers (semi-
trailers), is performed in such manner
that the brake effect of both vehicles is
synchronised.
When braking with one brake
pedal, the air brakes are not in
function!
At pressure drop, the relief valve
puts of operation secondary
appliances (differential lock,
disengaging of front driving axle,
front PTO shaft).
When driving with a hitched
trailer or semi-trailer, the service
brake pedals must be connected
together and secured with the
latch!
WARNING SIGNAL OF AIR
PRESSURE DROP
Decrease of air pressure under 450kPa
is indicated by a red lamp and red
symbol of a tractor with a sign STOP on
the dashboard.
Tractor with a braked trailer or
semi-trailer cannot continue in
driving when air pressure drops
under the critical margin 450 kPa,
until it comes to pressure
increase.
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