ISTALLATIO
ISTALLATIO
23
23
2.9
2.9
Line Riding Tensiometer
Line Riding Tensiometer
2.9a Line Riding Tensiometer
Installation
Swing arm mounted
Application:
Most applications, mounted as far up the
boom base as practical with the swing
arm base attached near the tip of the butt
section. This mounting allows the line
riding tensiometer to follow the movement
of the wire rope path.
Commentary:
Make sure that the swing arm is long
enough to allow free movement at any
boom angle.
Figure: Example of a typical installation on a lattice boom
crane, allows for lower clearance (not to scale)
CAUTION!
The Line Riding tensiometer must be held by the
swing arm and the tension of the wire rope; do
not fix the line riding tensiometer to the boom.
The Ratio of the distance between the line
riding tensiometer and the hoist drum must
be 18:1 as minimum to allow a normal
winding on the drum.
The angle between the swing arm and the
measured rope shouldn’t exceed 30 degrees.
Two Landing Pads (Wooden cushion) must be
added to allow line riding tensiometer sitting
when the boom is down.
Nothing should limit free displacement of
the swing arm & line riding tensiometer
assembly at any boom angle or configuration.
!
!
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