Iveco Daily Euro 4. Manual — part 193
2
STEERING GEAR
D
AILY
E
URO
4
-
Accidents with Air-Bag module activation
17
. . . .
-
Painting
18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-
Risks for health
18
. . . . . . . . . . . . . . . . . . . . . . . .
-
Overexposure effects
18
. . . . . . . . . . . . . . . . . . .
-
Safety Standards to observe when handling Air-Bag
modules
18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-
Air-Bag module scrapping
19
. . . . . . . . . . . . . . . .
-
Safety Standards to observe when handling
pretensioners
19
. . . . . . . . . . . . . . . . . . . . . . . . .
-
Pretensioners scrapping
20
. . . . . . . . . . . . . . . . . .
-
Operations on system components
20
. . . . . . . .
-
Removing and scrapping activated Air-Bag module
and pretensioner from vehicle
20
. . . . . . . . . . . . .
-
Removing and scrapping non-activated Air-Bag
module from a repairable vehicle
20
. . . . . . . . . .
-
Air-Bag module deployment
Remote activation
21
. . . . . . . . . . . . . . . . . . . . . .
-
Activating Air-Bag modules and electronic
pretensioners installed on unrecoverable vehicles
21
-
Upper steering gear shaft removal
23
. . . . . . . . . .
-
For vehicles equipped with Air-Bag
23
. . . . . . . . .
-
For all vehicles
23
. . . . . . . . . . . . . . . . . . . . . . . . .
-
Refitting
24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-
Lower steering gear shaft removal
24
. . . . . . . . . .
-
Refitting
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HYDRAULIC POWER STEERING
25
. . . . . . . . . . . . .
-
Hydraulic power steering removal
25
. . . . . . . . . .
-
Refitting
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-
Steering linkage replacement
26
. . . . . . . . . . . . .
-
Removal
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-
Refitting
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-
Rubber bushing replacement procedure
26
. . . . .
POWER STEERING PUMP
28
. . . . . . . . . . . . . . . . . . .
-
Power steering pump overhaul procedure
28
. . .
It has two functions:
- angle driving between spin axis of the steering control and
the wheels’ steering axis.
- gear down through the coupling ratio the resistant
moment opposing the wheels under the steering effect.
The value of this ratio and the wheel geometry characteristics
(toe-in - camber - caster), determine the stress and the type
of steering, more or less direct; this increases or decreases the
driver sensitivity of the vehicle attitude on road; besides, it
determines the steering caster action degree, that is, the
spontaneous return to straight normal running when the
steering wheel is released after steering.
The tie rods joining the steering levers mounted on stub axles
using knuckle heads are joined by ball joints at the end of the
rack rod. Operating the tie rod the wheel camber is adjusted.
The hydraulic pump is of the blade type:
- on F1A engines, it is flanged to the alternator support;
- on F1C engines, it is flanged on the left side of the engine base.
The pump incorporates the overpressure control valve.
STEERING GEAR
General
Generally, the steering gear members consist of: a full steering
gear control, a steering box, the linkage joining the driving
wheels and, for the hydraulic-type steering box of: an hydraulic
pump, an oil tank and oil piping.
In vehicle system 35C-65C with F1C engine, there is installed
a pipe coil (A) to cool oil.
The rotary movement given to the steering wheel by the
driver is transmitted to the steering box by three shafts joined
one another by universal joints.
The universal joints allow the transmission of the rotary
movement on different planes.
The upper shaft, on which the steering wheel is keyed, is
housed and supported in the upper support by elastic bushes.
In addition, the indicator automatic switch-off and the antitheft
steering lock are keyed to the support.
The steering box is of the type: pinion - rack rod with hydraulic
power.
88735
Figure 1
STEERING GEAR DIAGRAM
STEERING GEAR
3
D
AILY
E
URO
4
STEERING GEAR
D
AILY
E
URO
4
Steering gear
Hydraulic
Hydraulic power steering
Pinion and rack type
Type
ZF*
TRW
Operating pressure X
100 bar
Maximum delivery volume
-
No. of steering wheel turns
3,8
R k
l i b h
i
di
i
180
1 5
Rack travel in both steering directions:
180
1 5 mm
Rack travel in both steering directions:
180
1,5 mm
Rack travel in both steering directions:
180
1,5 mm
Type
TEXAND F020
SHELL-ALVANIA LS00
Lube oil
pinion side
kg
-
0,060
pipe end side
kg
-
0,030
Power steering pump
blade type with pressure relief valve incorporated
Motor
FIA
FIC
Type
ZF 7612 955117
ZF 7682 955133
Minimum RGM
rpm
500
750
Maximum RGM
rpm
8500
3500
Maximum pressure
bar
100 + 10
115+10
Minimum delivery
dm
3
/min
-
-
Adjusted delivery
dm
3
/min
9
± 0,75
9
± 0,8
Turning circle (theoretical value) [m]
Wheelbase [mm]
MODELS
29 L - 35 S
35 C
(1)
35 C
(2)
- 40 C - 45 C - 50 C
60 C - 65 C
Tyres
205 - 225/70 R 15
195/65 R 16
195/75 R 16
225/75 R 16
3000
10,37
10,34
11,04
-
3300
11,25
11,22
11,98
11,79
3450
11,69
11,66
12,46
12,25
3750
12,57
12,54
13,40
13,17
3950
13,15
13,12
14,03
13,78
4100
-
13,56
14,50 (3)
14,24
4350
-
-
15,29 (4)
15,01
4750
-
-
16,55 (4)
16,24
(1) Front suspension with trasverse leaf spring.
(2) Front suspension with torsion bar.
(3) Models 35C-40C only
(4) Models 45C-50C only
52376
STEERING GEAR
5
D
AILY
E
URO
TIGHTENING TORQUES
DESCRIPTION
TORQUE
DESCRIPTION
Nm
kgm
1
Screw, steering box fastening nut
50
÷ 61
5
÷ 6,1
2
Nut securing the jointed head to the steering box rod
70
÷ 100
7
÷ 10
3
Nut, ball joint to steering arm
68
÷ 83
6,8
÷ 8,3
SPECIFIC TOOLS
TOOL NO.
DESCRIPTION
99347074
Knuckle pivot extractor
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст