Iveco DAILY M.Y. 2012, Body Builder Instructions

Page: 85 / 252

CHASSIS MODIFICATIONS
2-59
D
AILY
Printed 603.95.241 Base — 02/2012
Work on the brake system
2.15.2 Braking corrector
For vehicles that are still requested without ABS, there are two types of braking correctors:
- version for the dual braking circuit combined with the single rear wheels (models 29L and 35S);
- version for the single circuit combined with twinned rear wheels (models 35C).
Adjusting the corrector
The adjustment is performed originally in the production plant and makes the vehicle suitable for transporting loads or for the
application of normal superstructures in compliance with deceleration and traction values required by the relative EC Directives.
The adjustment and control data is specified on a specific plate, located on the vehicle as specified in the specific documentation.
Having to adjust the corrector differently, proceed as indicated below (see Figure 2.29).
In the case of new springs, it is necessary to correctly settle the rear suspension before carrying out
the adjustment.
For this purpose, it is recommended to partially load the vehicle (approx. 2/3 of the permitted
maximum), drive on an uneven road and then perform a series of braking operations in forward and
reverse gears.
NOTE
- Connect pressure gauges 1 and 2 to the pressure test points upstream and downstream of the corrector using the test unions
3.
- Loosen the screw 8 joining the adjustment lever 7 to the corrector.
- Apply the specific adjustment load for each model and for each spring to hole 9 after loading the engine axle according to the
reference value (see Table 2.23).
Table 2.23
Models
Rear leaf spring
Type (part. no
°
)
Load on the adjustment
lever (kg)
Reference load on the
ground on the rear
axle (kg)
29L - 35S single-leaf (504054606 -...) 1.5 1500
35C semi-elliptic (504048792 -...) 3.5 1500
- Tighten the connecting screw 8 to the required torque of 16
÷
19 Nm.
- Activate the brake pedal until a control pressure of 100 bar is reached in the circuit upstream of the corrector.
- Check that the output pressure reaches the value indicated on the plate, corresponding to the resulting ground weight.