SK599-AT5
Steering system
Truck
SPIERINGS MOBILE CRANES USER MANUAL V 0.1
12-5
D
ec
2
01
6
C
h
an
ges
an
d t
y
po
gr
ap
hi
c
al
er
ro
rs
res
er
v
ed.
©
20
1
6
S
pi
er
ings
M
obi
le
C
ran
es
–
A
ll r
ight
s
re
se
rve
d
.
12.3.1.3.
Rear axle steering
If the steering system fails, symbol
Malfunction steering system
appears on the main screen.
In some cases, the
yellow warning light
becomes active. The error code(s) appear(s) on the display of
the
control panel steering system
on the control panel.
Please write down this error code(s) and contact Spierings Mobile Cranes.
If an electrical malfunction occurs while driving the vehicle, it remains steerable.
The steering system ensures that the main steering cylinder of the rear axle will centre and rigid itself.
The mechanically steered axles remain normally steerable.
Stop as soon as possible to restore the failure.
For more information, see
Chapter 8. Hydraulic system.
12.4.
Maintenance steering system
12.4.1.
Checking steering system
Check the steering system with two people! Secure the crane to its
transport position
.
While one person moves the steering wheel slightly to the left and to the right, the other one must
check the steering arms and steering ball joints, steering box (bolts) and steering rods for play and
wear.
12.4.2.
Aligning
Before aligning the vehicle, play of the steering arms and steering rods must be checked.
Since the vehicle is equipped with electronic centre position signalling, before aligning it is
recommended to contact Spierings Mobile Cranes.
CAUTION!
If an electrical malfunction occurs, the vehicle remains steerable.
Only the mechanically steered axles can be steered, increasing the turning circle
significantly.
CHECK / TEST!
Check every 2 months if there is no play in the steering arms, steering ball joints,
steering box(bolts) and steering rods of the steering system.
ENTRAPMENT HAZARD!
Make effective arrangements with each other in order to prevent entrapment!
CHECK / TEST!
To prevent excessive tyre wear, the truck must be aligned once a year.
