Reliable STT293 - Slewing Mechanism; Description

STT293 CONCISE TOWER CRANE MANUAL
54- EURC1.0ENG
3.2. SLEWING MECHANISM
3.2.1. DESCRIPTION
The slewing mechanism RTC consists of:
- Motor with squirrel-cage armature turning at constant speed in the desired
direction.
- Electrodynamics coupling/brake to perform the speed changes.
- A gearwheel in which the clutch engages directly on the slewing ring.
- Safety brakes mounted on the electrodynamics coupling/brake.
- Techno-dynamo, for speed control.
- Slewing limiter.
- The crane can be put in weathervaning both manually and electrically.
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