Belden Hirschmann HC4900, User Manual

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the cable is parallel with the boom.
 The Length/Angle sensor sometimes needs to be adjusted. Press the
cable drum line to make the cable drum plane parallel with the boom plane.
Rotate the cable drum and observe until the swing get smaller amplitude.
If the cable drum swing too much because of the shape distortion and
can’t be adjust, please stop the installation and repair or replace the
Length/Angle sensor.
 Make sure the spring force of the measuring cable is sufficient and the
cable drum is rotating smoothly after installation is completed.
 If the measuring cable is already at the pre-tighten length when boom is
retracted, the pre-tighten turns can be reduced.
3.5 Anti-two Block Switch
Anti-Two Block Switch is a normally open limit switch for winches, lifting devices
and cranes. It is a simple, direct installation and compact design. The sealed
housing protects the inside components from water inclusion, humidity etc.
3.5.1 Technical data
Operating voltage: 15
～
30V
Operating voltage: -25V ～ +70V
Storing temperature: -40
～
+70
Protection class: IP67
Life expectancy:
＞
5×10
6
times
Housing: aluminum
Weight: 1.2kg
A2B Switch dimension