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Air/dust separator that reduces carryover to the fan.

Removable panel providing maintenance access to the cooling fan. Speeds belt inspections and bearing greasing routines.

Protective mesh guarding the engine-bay cooling fan. Prevents accidental contact and ingress of large debris.

Automatic switch engaging the radiator fan when coolant reaches set temperature. Maintains engine efficiency and prevents overheating in slow traffic.

Chemical additive used when flushing the auxiliary-engine coolant circuit. Removes scale and maintains optimal heat-transfer efficiency.

Side brush targeting gutter line; channels debris toward suction nozzle.

Small steel gauge used to measure kerb brush bristle length. Helps schedule replacement before performance drops.

Rubber roller maintaining consistent line pressure along kerbs. Used on paint-marking vehicles for tight edge definition.

Hand pump to tilt cab for maintenance access.

Power take-off unit mounted to gearbox supplying hydraulic power to the sweeper. UK highway sweepers use both front and rear PTO configurations.