STT113 TOWER CRANE OPERATION AND SERVICE MANUAL
3B
-
16
THE RIGHT CONTROL PANEL IS EQUIPPED WITH:
Power supply button (also horn button,) symbol ; warning light VOI and
break button (emergency button) O.
To begin with, turn the emergency button to
the right till it was sprung out. Then press the power supply start button. The power
supply of the tower crane was started (main contactor P of electrical control panel A
start work) while the horn hooting and warning light shining. When press the break
button (the emergency button) O, the power supply is turned off (main contactor P of
electrical control panel A is released). The break button cannot reset (turn back)
automatically. If required, turn it to the right until it springs up by itself. Press the
button to cut off current when the crane is out of service or to meet the emergent
requirement such as the contactor attaching mechanism is out of control or other
emergency requiring current break.
As shown on the panel, the lever can be pushed in accordance with “
十
” instead of
“
米
”
，
that is the lever can not be pushed in oblique direction. Push the lever forward
to lower the hook
.
(When the lever is pushed to the left or to the right (TAV, TAR
),
the travelling control
of the crane is effected. But for the anchorage or climbing crane, there is no such kind
of control lever installed. And no control circuit is set on the panel.
