SK597-AT4
Driving
Truck
SPIERINGS MOBILE CRANES USER MANUAL V 1.2
4-43
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
.
4.13.4.1.
Longitudinal differential lock
Enable longitudinal differential lock
Enable the
longitudinal differential lock
by means of switch
longitudinal differential lock
on the control
panel:
-
The longitudinal differentials will be locked;
-
The symbol
longitudinal differential lock
on the main screen flashes till all longitudinal differentials
are enabled. After that, the symbol remains continuously active.
Disable longitudinal differential lock
Disable switch
longitudinal differential lock
on the control panel:
-
The locks of the longitudinal differentials will be disabled;
-
The symbol
longitudinal differential lock
on the main screen flashes till all longitudinal differentials
are disabled. After that, the symbol disappears.
Measures if the longitudinal differential lock is not automatically disabled
If the symbol
longitudinal differential lock
flashes, not all
longitudinal differential locks
are
enabled/disabled:
-
See
§ 3.9.2.3. Main screen: Axles screen
for an overview of the enabled longitudinal and
transversal differential locks;
-
Swing shortly and slowly when driving away.
If the symbol
longitudinal differential lock
remains flashing:
-
Outrigger the truck to release the wheels from the ground to eliminate any friction of the axles.
4.13.4.2.
Transversal differential lock
Use the
transversal differential lock
if there is still not enough grip when using
longitudinal differential
locks
.
Enable transversal differential lock
CAUTION!
Disable the longitudinal differential lock before driving on the paved road.
CAUTION!
Check after disabling the longitudinal differential lock if all longitudinal
differentials are disabled.
CAUTION!
•
Enable/disable the transversal differential lock may only be done when the
vehicle is not moving, there is no steering and the longitudinal differential
lock is already enabled;
•
NEVER disable the longitudinal differential lock before disabling the
transversal differential lock.