Tadano GR-700N, Service Manual

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Y-9 Y-9
Operation Check (Traveling Device)
86
WY05-3940E
Operation
Suspension lock indicator
Suspension state
Extend the slides by the outrigger
operation switch
(central/individual) and jack up the
crane.
Set the outrigger status on the
AML to extension status.
Lights up Locked

Suspension falls rapidly if the suspension free switch is pressed while
the boom is in front and the crane is in the jack-up state.
Do not operate the switch.
↓
Slew the boom in an over-side
direction.
(Elevating angle shall be 20° to
50° if boom raising operation is
also performed.)
Lights up Locked
↓
PTO
－
OFF Lights up Locked

Check that the suspension does not fall even if the suspension
up/down switch or suspension free switch is pressed.
↓
PTO
－
ON Lights up Locked
↓
Stow the jacks and slides (with
the boom in the over-side).
Flashes slowly Locked
↓
Keep pressing the suspension
free switch for 1 second or more.
Flashes fast Suspension emergency free
↓
Perform boom extending
operation.
Flashes fast Suspension emergency free

Check that the boom stops after it extends by 0.1 to 0.2 m (0.33 to
0.66 ft) from the fully retracted state.
↓
Perform boom raising operation.

Check that the boom stops at the elevating angle of 55°.
Flashes slowly Locked after stop
↓
Set the crane in the traveling state
by the telescoping, elevating and
slewing operation, then turn OFF
the PTO (with the suspension as
is).
Flashes slowly Locked
↓