DEMAG DRF 200, Assembly Instructions Manual

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4.5 Trolley for KBK crane construction kit
Fig. 7
Item Designation Item Designation
A) KBK II-L, KBK II, KBK II-R B) KBK III
Tab. 14
DRF 200 friction wheel travel drives transmit the output of the travel motor, which is specially developed for the
crane construction kit, via a spring-mounted friction wheel to the bottom flange of KBK rails. The wide friction
wheel should be used for KBK II, and the narrow friction wheel for KBK III. DRF 200 mounting components can be
relocated to vary the position of the spring assembly and motor as required. Contactor control and timed mechani‐
cal braking, or timed mechanical braking elements in the control pendant are required if pole-changing travel
drives are used.
4.6 Link bar
Two different lengths of link bar are available to connect the tractor trolley to the load trolley, see also the "KBK
classic technical data" document

Tab. 2, Page 2.
The short link bar (l = 130 mm) is sufficient for straight travel, the long link bar (l = 270 mm) is required for travel
on curved tracks. The long link bar is available for travel on horizontal curve radii up to R = 800 mm and there is a
second bar for travel on radii up to R = 2000 mm.
4.7 Load bar
The tractor trolley can also be used as a load trolley when a load bar is used. Load and tractor trolleys are availa‐
ble in variants for travel on straight and curved tracks.
The load bar pin is retained on the trolley by a load bar and distance sleeve that corresponds to the flange width.
The load bar (see  "Load bar", Page 31) is suitable for attaching a DC 1 or DC 2 chain hoist. The maximum
permissible safe working load of the load trolley is 270 kg for non-guided loads which are allowed to swing freely.
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