Pan Head
The Pan Head is mounted onto a shaft, which in turn is located inside the cross tube
of the upper frame. Leaf springs are used for the suspension of the sliding strips. The
pan head springs (leaf springs) are affixed in the rocker boxes and they carry the
sliding strips.
The single suspension of each sliding strip achieves excellent contact behavior and
thereby a minimum of wear.
The design of rocker boxes and sliding strip fastenings protects the pan head springs
(leaf springs) from destruction at abnormal high horizontal and vertical forces. If the
forces exceed a defined value, the channels for monitoring compressed air are
deflated and the valve unit ADD lowers the pantograph to avoid subsequent
damages.
Illustration 11: Pan head
All components of the Pan Head are listed in the Spare Parts – List
( Chapter #17.2.8).
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