RT60 Rough Terrain Crane 07 - 19
After the hoist movements finished, move the joystick to the neutral position slowly to stop
the movements.
The hoist speed increases as the HIGH / LOW SPEED CHANGEOVER SWITCH FOR
MAIN / AUXILIARY WINCH on the dash is turned to stage “High” and the joysticks is
moved further forward or backward. Hoist speed also varies with the engine speed.
Do not change the speed abruptly to ensure stable movements.
If the hook block contacts the anti-two block weight, acoustic / visual warning will be sent
out and the movements “Winch up”, “Boom extend” and “Luff boom down” will be switched
off; if there are only 3 wraps of rope remained on the winch, the movement “Winch down”
will be switched off; if the actual load exceeds the rated one, acoustic / visual warning will
be sent out and the movements “Winch up”, “Boom extend” and “Luff boom down” will be
switched off.
If necessary, this switch-off can be bypassed by the bypass key switch in cab. Only carry
out bypassed movements with maximum care and minimum speed during commissioning
and maintenance.
It is forbidden to use the bypass key switch during normal crane operation.
(1) Select proper line parts in accordance with the actual boom length and load
weights to be picked. If the hook rotates due to twisted rope, lay down the load
on the ground. Don’t lift the load until the rope is totally untangled;
(2) Be sure to provide for no less than three full wraps of wire rope remaining on
the winch drum under any working conditions;
(3) Lift the load vertically and it is forbidden to lift the load diagonally. Do not
laterally drag the load which is still on the ground;
(4) Lift the load away from the ground a little and stop for a while. Continue lifting
after ensure that there is no hazard around. Do not attempt to use more than
one function, such as “Luff boom up” and “Boom extend”, to lift the load away
from the ground;
(5) Do not change between “Winch up” and “Winch down” jerkily. If you want to
interchange the two movements, return the joystick to neutral position and
ensure the winding drum has stopped rotating. Otherwise, the machine will be
damaged;
(6) The slings must be of enough strength. The lifting capacity includes the mass of
hook block and slings besides that of the load;
(7) The crane cannot be used to lift person.
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