Fiber cleavers: blade care and clean cuts
Most "splicer problems" in the field are actually cleaver problems. This lesson covers the care routine that keeps cleave angles under 0.8° for the full blade life.
- 1
Daily: clear fiber shards
Open the lid fully, brush shards away from the anvil and blade track with the supplied brush — shards under the fiber line cause angled cleaves and broken fibers.
- 2
Weekly: clean the blade edge path
Lint-free wipe with IPA across the blade edge ring and fiber clamps. Do not wipe the actual cutting edge aggressively — lift fibers off, do not drag.
- 3
Rotate blade positions on schedule
Every 2,000–3,000 cuts, move to the next of 12 positions. Record the counter on a label on the cleaver.
- 4
Check the felt/anvil pad
A worn or gel-soaked pad lets the fiber sag during scoring — visible as a wedge-shaped break face. Replace pads, not blades, when this appears.
- 5
Diagnose by break face
Clean mirror face = good. Wedge or step = dull position or clamp issue. Shell-shaped = fiber not clamped. Reading the face is faster than guessing.
Field tips from TEKCN engineers
- Never blow on the cleaver to clear shards — moisture lands on the pads; use the brush.
- Transport cleavers with the lid latched; an open lid in a toolbox is a bent fiber-clamp waiting to happen.