WORKSHOP MANUAL
PARK
Chapter
7 - WHEELS - TRANSMISSION - BRAKE
EDITION
2020
PAGE
82 /
124
7.6 BRAKE
7.6.1 General principles
In a machine with hydrostatic transmission, both two and four-wheel drive, the braking action is
given by the return to the “neutral” position of the traction control pedal. With the pedal in “neutral”,
the passage of the oil from the pump to the hydraulic motor closes, which, no longer powered and
no longer able to allow the oil to return, slows down the stroke of the machine until it stops.
7.6.2 Service brake test
1. Remove the work equipment
2. On a flat and uneven path, launch the machine at maximum forward speed, then suddenly re-
lease the traction pedal, which will return to the “neutral” position.
WARNING!
Braking is considered to comply with the safety requirements if the ma-
chine stops within 1.9 meters, WITHOUT the use of the brake pedal, the purpose of which
is exclusively to allow the insertion and release of the parking brake.
WARNING!
Finding higher values, it is necessary to carefully check that the control
cable does not have any jams and replace it immediately if it has bends or passages in
narrow areas that can affect smoothness.
IMPORTANT
Always keep the pivot of the traction pedal well lubricated,
so that it can ensure return to “neutral” without any jamming.
In the case of hardening when operating the pedal, a practical test consists
in disconnecting the pedal lever from the linkage; if the pedal movement
regains normal smoothness and quickly returns to the central position, it
means that the cable must be replaced.
7.6.3 Parking brake test
WARNING!
The parking brake should prevent the machine from moving on a slope
of 30% (16°) with the driver in position.
1. Remove the work equipment
2. Place the machine on a ramp inclined by 16°, and apply the parking brake.
3. Check that the machine remains stationary and does not make the slightest movement; if not,
make adjustments.
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