MISFUELING Protection Device
Passive Misfueling Protection Device System
| ITEM | DESCRIPTION |
|---|---|
| 1 | Filler neck |
| 2 | Flap |
| 3 | Reset slots |
| 4 | Spigots |
| 5 | Reset tool |
| 6 | Spring |
The passive misfueling protection device system comprises a mechanically operated flap. The flap is triggered when a smaller diameter filler nozzle is inserted into the misfueling device. A smaller filler nozzle is typically used on petrol (gasoline) pumps.
It is possible to trickle fill fuel into the tank once the passive misfueling protection device has been activated. A noticeable change in fuel filling performance will be experienced with continuous fuel shut-off events significantly reducing the flow of fuel.
The shut off flap is actuated and blocks the sensor port on the fuel pump nozzle, causing it to automatically switch off. The shut off flap is locked in this position by a latch mechanism, once it has been activated.
A reset tool is provided and stored by the spare wheel. The tool is used to reset the misfueling protection device if triggered. The tool is inserted into the filler opening as far as possible with the spigots pointing upper most. When the 2 spigots on the tool are located in the slots it can be pulled outwards. This releases a latch and allows the shut off flap to be opened by its own spring pressure.
The shut off flap is colored yellow so that it is clearly visible within the entrance of the fuel filler pipe when activated. The shut off flap has a 'Handbook' symbol on it.
A 25 mm diameter diesel fuel pump nozzle will not activate the misfueling protection device because the nozzle stops against 2 molded lugs. If a 21 mm diameter gasoline pump nozzle is inserted into the housing, the smaller diameter allows it to pass the 2 molded lugs. The nozzle strikes 2 pins on the inside of the filler housing which move forward. This movement rotates the shut-off flap which is then held in place by the latch mechanism when the nozzle is removed.
Active Misfueling Protection Device System