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billy53Jul 27, 2025
Why won’t my JLG 4394RT Lifting Systems shift or is slow to start?
- PPatricia HayesJul 28, 2025
If your JLG Lifting Systems won’t shift or is slow to start, it could be due to obstructed flow through the servo control signal lines; ensure these lines are clear and signal pressure is adequate. Also, the size and condition of the supply and drain orifices affect shift rate; verify the correct orifices are installed and not obstructed, cleaning or replacing them as necessary.
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