Fault Phenomenon: JLG 600SC articulating boom aerial work platform during boom rotation, the platform control cable gets tangled and pulled.
Troubleshooting Process:
– Checked slip ring: slip ring failed, cable not following rotation.
– Checked cable length: inappropriate length.
– Checked cable clamps: clamps detached.
– Checked operation: excessive reverse rotation.
Root Cause: The center slip ring failed, preventing the cable from rotating freely, causing it to become tangled.
Required Parts: Center slip ring assembly and cable replacement.