Health & Safety publication HSE HSG258 has the following to say regarding LEV User Manuals:
A manual should cover how to use the system, how to maintain it, the spares
available and a list of things that can go wrong. It should contain an exploded
diagram naming key components of the LEV.
The employer, as owner of the LEV system, requires a user manual because:
they may not understand the technicalities of the LEV system;
LEV checking and maintenance will improve with good instructions and
guidance; it will assist the examination and test of the LEV system.
Each manual is written for the specific item of LEV and includes a comprehensive overview and clear understanding to the operator.
The manuals contain detailed illustrations to safely indicate the correct procedure to ensure that the user is always operating safely and aware of the hazards.
Fully illustrated user instructions regarding the safe removal and disposal of PPE such as goggles and gloves and reducing cross contamination.