I was diagnosing a customer's landing legs. The motor usually pulls 20-30A. Amp clamping the wire, it’s currently pulling 55-60A.
Inspecting the motor, it appears to be running ok. The likely culprit is the landing legs themselves for a few reasons:
- The drop-down legs are almost fully extended, adding torque to the whole mechanism.
- Raising the drop down legs and using the lifting legs the amp draw drops to 29-31A—within spec.
So, what is the cure for the pile of 30A fuses the customer has blown through?
Could be a worn out motor, but likely the drop legs are being over extended, placing too much stress on the lift legs and creating torque against the walls of the assembly.