2 – 18
OPERATION
1. SINGLE ACTION OPERATION
Hydraulic Breaker and Others Controls
If the marked (–) of the valve is set in horizontal
position, the pressure of returned oil becomes
higher and the the breaker does not function
efficiently.
ALWAYS
set the marked ( I ) in vertical position.
Switching the attachment hydraulic circuit.
Check the marked position on the shift valve
c
.
Turn the valve with a wrench and set the marked
( I ) in vertical position, if necessary.
1) Fold the pedal
d
into double layers.
2) Move the lock lever
e
to the unlocked
position.
Breaker ON
: Push down the pedal
d
to
activate the breaker.
Breaker OFF
: Release the pedal
d
to
deactivate the breaker.
NOTE
: When no breaker operation is needed,
be sure to lock the pedal
d
by lock lever
e
to
the
LOCKED
position.
2-9 OPERATING THE SPECIAL ATTACHMENTS AND ACTUATORS (If equipped)
* Select a hydraulic breaker. a wrecking fork and special actuators, etc., witch are
applicable to the machine body.
Consult your local IHI dealer to select a special attachment and an actuator.
Precautions on use of special attachment and actuator.
* Before using a special attachment and an actuator, read and understand their
instruction manuals issued by a manufacturer to obtain correct operation and
maintenance.
* When a special attachment and an actuator are mounted, the machine specifications
such as stability, working radius, transport height, etc., should be altered. Before
starting operation, confirm each specification to ensure safety of workers and the
machine.
CAUTION
CAUTION
S
h
if
t
Valve
Se
t
th
e ma
rk
( ) i
n
va
rt
ical
posi
t
io
n
Si
n
gle
Ac
t
io
n
P
e
d
al
Loc
k
e
d
Un
loc
k
e
d
