| 1. Disconnect the battery from weight. |
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2. Disconnect from the valve the socket (1 – the socket, 2 – fastening screws). |
| 3. Unscrew screws and remove the valve with laying. |
| 4. Disassemble the valve and check freedom of movement of the piston. |
| 5. If the piston jams, then replace the valve. |
| 6. Installation is carried out upside-down. |