Secondary Steering (Optional) - Hitachi ZW140-6 Operator's Manual

Secondary Steering (Optional)

If the oil pressure in the steering system lowers, the secondary
steering system is activated so that steering operation can be
achieved.
If the secondary steering system is activated, secondary
steering indicator (2) lights and the buzzer sounds.
The steering wheel will become hard to rotate but it is
operable. Immediately park the machine in a safe location.
Then, contact your authorized dealer.
The secondary steering can be used for 60 seconds.
IMPORTANT: The secondary steering system is provided
for a provisional use. If continuously used for more
than 60 seconds, damage to the system may result.
Even though the machine is equipped with the secondary
steering system, if the steering function becomes inoperable
during drive operation, press secondary steering check switch
(1) on the right console to activate the secondary steering
system. Then, immediately park and stop the machine in a safe
location.
When the secondary steering system is activated by pushing
secondary steering check switch (1), the secondary steering
can be used for 30 seconds.
f
NOTE:
 The secondary steering auto-check sound may be heard for
two seconds after starting the engine.
 Before operating the machine, press secondary steering
check switch (1) to confirm that the secondary steering
pump operates normally.
DRIVING MACHINE
4-7
1
MNDB-01-005
1
MNEC-01-020
2
MPTC-01-019