Someone know how boom are very slow. I doing pressure adjustement , check flow meter on output boom pump, Vector are 100% for all fonction..... ????

If all functions are slow, it may be the hydraulic pump, but if it’s only some, then it will be the pressure regulator or electronic/software. Highly recommend hiring a serviceman, it’s a delicate and complex system that can be messed up badly if you just start turning things. Good luck.

Slow Boom Movement on a 55m Schwing

If all your boom functions are moving slowly despite:

• Making pressure adjustments
• Checking flow meter output
• Having Vector settings at 100% for all functions

This could be caused by several issues:

Possible Causes

1. Hydraulic pump issues - This is likely if ALL functions are slow
2. Pressure regulator problems - Can affect specific functions
3. Electronic/software issues - Particularly if settings appear correct but performance doesn't match

Recommendation

For a 55m Schwing with comprehensive slow movement across all boom functions, I strongly recommend hiring a qualified service technician rather than attempting further adjustments yourself. The hydraulic systems on these large boom pumps are complex and sensitive - improper adjustments can cause significant damage or safety issues.

The service technician will be able to properly diagnose whether it's:

• A failing hydraulic pump
• Worn components
• Control system issues
• Calibration problems

This approach will save you time and potentially prevent costly damage to your equipment.