Open the rear door.
Disconnect the negative(-) cable from the battery. (See Removal And Installation on Page 60-20-1.)
Remove the light housing (Item 1) [Figure 60-60-1] from the operator cab.
Remove the bulb assembly (Item 1) [Figure 60-60-2] from the light housing by turning bulb assembly a 1/4 turn.
Remove the bulb (Item 1) [Figure 60-60-3] from the socket.
Reverse the above procedure to install the bulb.