STT 293 CONCISE TOWER CRANE MANUAL
53-
EURC1.0ENG
3.1. EXPLANATION OF THE SYMBOLS:
R T C
(EX. RTC290)
3.1.1. DESCRIPTION:
Select the slewing speed suitable for the required movement. Gradually increase or
decrease the slewing speed. Slow down gradually instead of stopping the load
abruptly with the slew brake.
The slew brake may only be used to position the jib during hoisting at wind speeds <
13 m/s (46 km/h).
Avoid simultaneous slewing and hoisting to prevent damage to the hoist rope (rope
twisting risk).
Couple (Nm)
Eddy current
Voltage timing
Slewing mechanism
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