SK597-AT4
Steering system
Truck
SPIERINGS MOBILE CRANES USER MANUAL V 1.2
12-1
M
ei
2
0
1
8
C
h
a
n
g
e
s
a
n
d
t
y
p
o
g
ra
p
h
ic
a
l e
rr
o
rs
r
e
s
e
rv
e
d
.
©
2
0
1
8
S
p
ie
ri
n
g
s
M
o
b
ile
Cr
a
n
e
s
–
A
ll r
ig
h
ts
r
e
s
e
rv
e
d
.
12.
Steering system
shows how the steering system is built.
A. Steering box;
B. Steering rod;
C. Steering arms;
D. Auxiliary steering cylinders;
E. Main steering cylinder rear axle.
The rotary movement of the steering wheel is activated in the
steering box A
and transposed into the
mechanical movement of the
steering rod B
, which operates the
steering arms C
of the axles.
On the axles, there are
auxiliary steering cylinders D
mounted for power-assisted steering.
Axle 4 is not mechanically connected to axles 1 and 2, but it is hydraulically steered by means of a
valve block and a
main steering cylinder E
.
12.1.
Steering modes
The steering system of the truck has two steering modes (see
•
On-the-road mode;
•
Off-the-road mode.
32. Switch steering system on-the-road / off-the-road
on the control panel to switch the steering
system between
on-the-road mode
(steering wheel) and
off-the-road mode
(hand).
This may only be carried out when the vehicle is not moving.
Picture 12-1