See also:

Selecting preset channels
Presetting a channel with a preset button allows you to select that channel in a single operation. Up to six SAT1, SAT2 and SAT3 channels each may be preset. ...

Lubrication oil circulation in the refrigerant circuit
Operate the air conditioner compressor at a low engine speed (at idle or low driving speeds) a few minutes each month during the off-season to circulate its oil. ...

Checking the clutch function
Check the clutch engagement and disengagement. 1. With the engine idling, check that there are no abnormal noises when the clutch pedal is depressed, and that shifting into 1st or reverse feels smoot ...