FM-10: FM-10 BAR-LOCK OR CHAIN-TENSION KNOB WILL NOT TURN, ENGAGE, OR HOLD

FM-10 BAR-LOCK OR CHAIN-TENSION KNOB WILL NOT TURN, ENGAGE, OR HOLD

• A tool-free knob is frozen, cross-threaded, spins without effect, will not clamp the bar, or cannot hold the set tension.

  effect, will not clamp the bar, or cannot hold the set tension. 1. Remove the battery and do not use pliers or excessive force on either plastic knob. and cover clean, and inspect for cracks or stripping.

• root cause analysis
• tools needed
• step-by-step repair procedure
• diagrams
• exploded views
• post-repair checks

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