Outer surface abrasion and protection

Technical explanation

Manufacturer guides recommend preventing abrasive contact and inspecting the outer surface. The outer cover has a protective function; exposure of the reinforcement is a more serious finding. The acceptable depth of damage is not defined by a single number for all products. The use of a protective sleeve or spiral should be evaluated as part of the design, because it can change the movement and inspectability of the hose.

Source: S017, S031

Topic-specific checkpoints

Source: S017, S031

How to evaluate it in practice

Match the rubbing mark with the mark on the opposing surface. Determine whether the contact is continuous or only during certain movements. Separate the solution options into rerouting, suitable support, providing clearance and approved protection. After protection is fitted, do not automatically return the damaged hose to service. In the maintenance record, also specify how the surface under the protector will be inspected and how access will be provided.

Original editorial recommendation; not a clause of a standard.

Frequently asked questions

Can the inspection interval be extended once abrasion protection is fitted?

This decision is not made automatically; the effect of the protection, accessibility and the manufacturer's maintenance recommendations must be evaluated.

Source: S017, S031