To work on the
panel, you unscrew the two screws seen at the front of the
panel, then gently pull it towards you, but 1st:-
1st - You have
to pull the speedo cable from the gear box end. As the cable is
secured all the way to the instrument panel. You must release all the
securing clips. There is is no slack in the cable to enable you to
pull it and work on the instrument panel. Doing this enables enough
slack to allow the instrument panel to be pulled out and get your
hand in to remove the speedo cable.
2nd - Having
unscrewed the speedo cable from the gear box, unscrew the two screws
from the panel, pull it into the cab, you might have to push
the cable from the engine side to start the removal, so the
instrument panel has a enough slack to enable you to see and unclip
the cable from the back of it. Be careful of the cables attached to
the back, they don't get pulled off.
While you are
at it check the back of the panel for 'White' and 'green' corrosion
around the panel display lamp connections. This causes the lamps to
dim or not work at all.
After I removed
each indiviual lamp I used a small wire brush to softly clean the
green corrosion away and off the printed circuit board.
around the lamps are easily broken so take care when removing.