6 Release the latch shown in figure 7-55. Figure 7-55 Releasing the Latch on the Top Cover 7 Lift the top cover to remove it. Figure 7-56 Removing the Top Cover NOTE: Two of the four screws removed in the above procedure are longer than the other two. When replacing the top cover, these screws go in the holes shown in figure 7-52. C4170-90959 Parts Removal Tree 191