Qubino flush dimmer 1-10 V

We bought a nice LED lamp, Nemo Ellisse Pendant Double, which was said to be dimmable, but when receiving it there was a big IF  !!! 

The lamp was not "standard" dimmable, instead it was dimmable with 1-10 VDC or 100 Kohm potentiometer.

The 1-10 VDC control is common in big installations, in public environment, since it can control a lot of lamps with one dimmer.

Checking the lamp I found that the AC/DC LED driver was a Mean Well LPF-90D and in the drivers specification the second IF was found !!

The lowest control level didn't switch of the lamp

Volvo Penta D4/D6 water pump leak

The sea water pump, labeled 3589907 and replaced by 21380890, was leaking a little so a change of seal was necessary. Numbers below refers to the explode view.

• Detach the generator belt from the pump pulley and the 2 hoses from the pump.
• Unscrew the water pump, 4 scews, from the engine block.
• Remove the cover, 7, from the pump.
• Pull out the impeller, 6.
• Remove the cam, 4, by unscrewing screw 18.
• Remove the washer, 22.
• Remove the lock ring 14 and washer 21.
• With a pliers remove the seal 8.