Flow-Sensor Calibration Routine

Automatic routine run through the controller to verify sensor accuracy. Produces a calibration certificate stored with vehicle records.

Filter-Restriction Indicator

Visual indicator showing filter blockage level. Changes colour when differential pressure exceeds the service threshold.

Flashing Amber Light Test

Pre-departure check ensuring roof beacons and hazard flashers operate correctly. Required in daily inspection under council fleet policy.

Flatline Applicator

Wide shoe for laying flat thermoplastic markings such as bays or symbols.

Flexible Electrical Conduit

Protective conduit shielding wiring looms from abrasion and water. Common along under-chassis runs on UK municipal vehicles.

Flexible Jet Lance

Hand-held flexible water lance for flushing gully gratings. Allows operators to reach awkward angles without removing covers.

Fan Bearing Grease Line

Remote grease line allowing safe lubrication of the main fan bearing. Simplifies daily maintenance and prolongs service intervals.