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Edward BatesAug 21, 2025
What to do if Hirschmann iVISOR mentor QVGA boom has been extended too far?
- KKaren SimsAug 21, 2025
If the Hirschmann Touch Panel boom has been extended either too far or not far enough (for example, if going beyond a certain maximum boom length is prohibited, or with load curves for jibs where the main boom must be extended to a certain length), extend or retract the boom to the correct length. If the length sensor adjustment has changed, retract the boom and check the pre-stress of the cable reel to ensure the cable is taut. Open the length sensor and carefully turn the length sensor pot counterclockwise until the detent by means of a screw driver. If the clutch between the length sensor pot and drive is defective, replace the complete clutch, including the drive wheel, and adjust the length sensor pot as described above.