With no fastener load, speed surges, has a dead band, cuts out, or ignores trigger travel.

With no fastener load, speed surges, has a dead band, 1. Remove the bit, fit a known-good pack, and make one brief no-load

• FM-05: Fm 1 1

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

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