GRADUALLY slow the swing by use of the joystick. First, move the joystick to
the neutral position and then VERY SLOWLY into the opposite swing direction
position as required to slow the swing. Apply the swing brake, with the foot
pedal, when the swing is stopped or when emergency situations dictate that
the swing be terminated abruptly.
If properly executed, the load will hang motionless when the swing is
terminated. If the load is oscillating, the swing was made too rapidly and/or
stopped too abruptly.
Stopping the swing too abruptly will cause the load to oscillate and
impose side loads on the boom. Because side loading can damage boom,
ALWAYS START AND STOP SWINGS GRADUALLY.
Never pull sideways with a crane boom. Crane booms are not designed for
excessive side pull and may collapse if subjected to excessive side loading.
6.
Extend the boom to the desired length. Do not extend the boom further than
necessary to perform the lift.
EXTEND the boom by tilting the extend-retract pedal FORWARD. RETRACT
the boom by tilting the pedal BACK. An engine speed at or above 1,500 RPM
must be maintained when telescoping the boom in order for the pumps to
provide enough oil flow to make it operate properly.
While extending the boom, be sure to pay out sufficient hoist rope to
prevent the hook block from being drawn up to the boom peak. The force
of the extend cylinders can easily break the hoist line, dropping the hook
block and load which may result in personal injury or property damage.
The boom extend function on this crane has two positions and two speeds.
When the pedal is all the way forward, the regenerative mode provides
increased speed. With the pedal approximately one half of the way forward,
increased “PUSH” is available at reduced speed.
7.
Lower the hook block to the load and fasten the hook.
Make certain the hook is properly engaged with the slings, or lifting device
employed to make the lift. Be certain the hook latch is not supporting any of
the load. Refer to warning tag on hook block.
Hoisting or lowering of the load with the winch is controlled by the right
joystick. LOWER the load by moving the joystick FORWARD and RAISE the
load by moving the joystick BACK. Improved control is obtained by operating
the engine at low speed while “metering” the control. Always actuate and
95
P/N 12261-319 REVISED: August 2012
Summary of Contents for RT200-1
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Page 211: ...Notes Courtesy of Crane Market...
