Kasey said:
I think you will find that you have a gear lever for the normal gears and another lever to put it from 2Wd to 4WD high & 4WD low. If this works the same as the D40 that I have then you choose 2WD or 4WD and then use the gearbox as normal.
I previously had a few D22's and the above is correct, use the lever on the left of the main shift lever to choose between 2WD high, 4WD high and 4WD low, and I think there's a neutral position but I'm not sure.
The lever just moves forwards and backwards and you have to push down to select 4WD low if I remember correctly.
I'm not sure about changing while moving, some say it's ok to do it below a certain speed , personally I prefer to do it when stationary and using the clutch.
You should get an indication on the dashboard to advise you which mode you have selected.
If you have been in 4WD and want to go back to 2WD, have selected the lever to the correct position but it's still indicating 4WD, try reversing a few feet and this usually puts it back in 2WD mode.
I think there's usually a sticker either on the back of the passengers sun visor, or on the bottom of the passengers door card with information on it.
As previously stated, do not use 4WD on a sealed surface, only on a surface what will allow the wheels to spin.