Trailer brake servicing must be carried out by a competent person familiar with trailer braking systems. Before adjusting the brakes, always rotate the wheel(s) in a forward direction.
Lift the trailer using suitable jack and safe, secure stands to support the chassis.
Release the handbrake completely and ensure it is strapped for safety (must not be able to be applied during service).
When servicing brakes and adjusters always use a quality Molybdenum Disulphide grease lubricant on threads and moving parts. Note: Always rotate the drum as if the wheel was turning in a forward travel direction.