Confirm the protective sleeve type, length, and environmental requirements.

• Check engineering drawings or work instructions
• Identify sleeve material: braided, heat-shrink, corrugated, or textile
• Verify temperature, abrasion, and chemical resistance needs

Accurate measurement ensures proper sleeve fit and prevents excess slack.

• Lay the harness straight on the bench
• Measure total length requiring protection
• Add 5–10% extra length for routing and shrinkage (if applicable)

Cutting must be clean to prevent fraying or uneven edges.

• Use hot knife for braided sleeves to prevent fraying
• Use tubing cutter for corrugated sleeves
• Ensure cut edges are square and uniform

Preparing the harness makes sleeve installation easier and prevents snagging.

• Straighten wires and remove temporary ties
• Apply temporary tape to sharp connector edges
• Group wires into a compact bundle

Slide or wrap the sleeve over the cable bundle without damaging insulation.

• For braided sleeves: compress the sleeve to expand diameter, then slide over
• For corrugated tubing: open the slit and wrap around the harness
• For heat-shrink: slide tubing over before installing terminals

Ensure the sleeve covers all required sections and sits evenly.

• Align sleeve ends with drawing specifications
• Avoid twisting or uneven bunching
• Confirm full coverage of abrasion-prone areas

Securing prevents sleeve movement and ensures long-term durability.

• Use heat-shrink end caps, tape, or cable ties
• For heat-shrink sleeves: apply heat evenly until fully shrunk
• Ensure no gaps or exposed wire insulation