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DAILY 4x4 ‒ GUIDELINES FOR BODYBUILDERS
CHASSIS INTERVENTIONS
2.16 ESP (ELECTRONIC STABILITY CONTROL)
– Printed 692.68.999 – 3 Ed. - Base 08-2020
Table 2.15
Thread Tightening torque [Nm ± 10%]
M 8 x 1 mm 20
M 12 x 1.5 mm 24
M 14 x 1.5 mm 28
Insert the pipe into the coupling for the previously marked stretch of length L, using a force of between 30 and 120 N, depending
on the size of the tube.
The replacement of components (valves, etc.) is made possible because the engagement and coupling allow an internal rotation
during the operation of unscrewing and screwing.
Vehicle pipe installation
Before use, the new pipes must be thoroughly cleaned inside, for example by blowing air with a compressor.
The pipes must be fixed to the frame with elements which envelop the pipe completely and which may be metal with
rubber/plastic protection or be made of plastic material.
Provide appropriate distances between one fastening element and the other: generally, max. 500 mm for plastic pipes and max.
600 mm for metal pipes can be considered.
In order to avoid deformations and tensions at the time of closure of the couplings for the plastic pipes, it is necessary to take care
of the line and the accommodation of the fastening elements, rubbing should be avoided with the fixed parts of the vehicle and
meet the necessary safety distances from moving parts and heat sources.
▶ After each intervention, both on the system and on the equipment, it is necessary to perform a
precise air bleed operation (on vehicles with the ABS/ESP system only using special apparatus
present in the IVECO Authorized Workshops).
Note
The fluid discharged from the hydraulic circuit must not be used again. Top up using only new fluid of the prescribed type, con-
tained in original, sealed containers that should only be opened when using the fluid.
2.16 ESP (ELECTRONIC STABILITY CONTROL)
ESP is an electronic function which contributes to the vehicle's active security and therefore the European Legislation, relating to
vehicles approved also for off-road use, provides that it is obligatory up to GVW of 3.5 t.
By continuously analysing acceleration signals, yaw, steering angle and wheel revolutions (see Figure 19), the control unit is able to
compare the set trajectory with the actual vehicle trajectory.
if there is the danger of instability, the system activates the modulated braking of one or more wheels and intervenes in engine
management by reducing its speed.
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