| 1. To open the hatch of a mouth of the gulf of the fuel. To take a key. |
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2. A thumb of the hand insists on the lock cylinder around a lock hole. Another hand to insert the screwdriver in a slit in a covering of the hatch and to launch the spring fixing the cylinder of lock. After this there is enough there holds tight a thumb the cylinder of lock that went out from the hatch. |
| 3. For the installation at the place of pushing the cylinder in a hatch covering before the click. |
