Problem: ‘Seizing’:
During or after fitting the GTS tree bolt, the Hex Nut has seized and cannot be loosened. As a result, when attempting to remove the Hex Nut, the GTS Screw turns out of the mast as well. Accessories Parts cannot be slid onto the shank.
Possible causes:
1. No lubricant used: No lubricant was applied to the Hex Nut during installation.
2. Seizing over time: After a long period, the Hex Nut may seize up, similar to wheel nuts.
3. Very soft wood without PU glue: With very soft wood (poplar, willow, spruce, etc.), the screw may not encounter enough resistance. PU glue is the solution here, but it must be applied to the drill hole before assembly.
4. Drill hole too wide: The drill hole is too large, worn out or was pre-drilled imprecisely.
Solutions:
1. Oil the Hex Nut and washer and strike the washer or Hex Nut firmly with a steel hammer:
Apply plenty of spray oil (WD-40) to the joint. Strike the washer firmly with a hammer to loosen the joint.
2. Tighten with a ratchet:
Use a long ratchet and tighten the Hex Nut in short, powerful jerks.
3. Hold the shank in place:
If the tree bolt continues to turn, secure the shank of the bolt: Use a large pipe wrench with a rubber pad to protect the shank. Position the pipe wrench as close to the shaft as possible and extend it if necessary
Creative solutions with an angle grinder (if necessary):
1. Remove the washer and Hex Nut with an angle grinder:
If the Hex Nut and washer are welded together (older models from before 2026), simply cut through the weld points and loosen the washer from the Hex Nut with a strong hammer blow. If necessary, cut the Hex Nut in half lengthways. You can then reuse the thread for a new Hex Nut; we’ll be happy to send you one ;)
2. Modify the shank for a better grip with the pipe wrench:
Use an angle grinder to create a notch or flat surface for the pipe wrench. This area can be covered later with Distance Rings.