To Next Page
D
Danielle StephensSep 12, 2025
What to do if stellar labs 4420 two functions operate at the same time while only toggling one function?
- CChristina PerkinsSep 12, 2025
If two functions operate simultaneously while only toggling one, make sure that the solenoid valves are all latched in the center position to prevent movement during crane operation. Determine the function operating on its own and check for power going to its solenoid valve from a function that should not be operating. If voltage is present without operating the function, the toggle switch has failed and is stuck in the 'on' position. If no voltage is present, the solenoid valve may be partially open; remove, clean, lubricate, and reinstall the stem valve, avoiding overtightening, and replace it if it does not close.
General