Back to Contents Page

Battery Latch Assembly

Dell Precision™ M90 Mobile Workstation Service Manual

  Removing the Battery Latch Assembly

  Replacing the Battery Latch Assembly

Removing the Battery Latch Assembly

CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.

NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.

NOTICE: To help prevent damage to the system board, remove the main battery (see Before Working Inside Your Computer) before working inside the computer.

1. Follow the instructions in Before Working Inside Your Computer.
   
   
2. Remove the hinge cover (see Removing the Hinge Cover).
   
   
3. Remove the keyboard (see Keyboard).
   
   
4. Remove the display assembly (see Removing the Display Assembly).
   
   
5. Remove the palm rest (see Removing the Palm Rest).
   
   
6. Remove the system board (see Removing the System Board).
   
   
7. Remove the hard drive bay by removing the four M2 x 3-mm screws, and lifting out the bay.
   
   

NOTE: You can remove the hard drive bay without removing the ExpressCard cage from the hard drive bay.

1

hard drive bay

2

ExpressCard cage

3

M2 x 3-mm screws (4)

8. Remove the screw in the battery latch assembly.
   
   

When you remove the screw, the battery latch release on the bottom of the computer will also be removed.

1

screw

2

battery latch assembly

9. Remove the spring from the hook on the computer base by lifting it up and away with a screwdriver or a plastic scribe.
   
   

1

hook

2

spring

10. Remove the plastic battery-latch assembly by twisting the assembly slightly and lifting it out of the channel and away from the computer base.
    
    

1	battery latch assembly

Replacing the Battery Latch Assembly

1. Insert the latch assembly into the channel on the computer base, and press it into place.
   
   
2. Using a small screwdriver, hook the spring over the hook on the computer base.
   
   
3. Place the battery latch release under the computer base, line it up with the hole in the base, and then replace the screw in the assembly.
   
   

Ensure that the newly installed latch moves smoothly and freely when pushed and released.

4. Replace the hard drive bay and reinsert the four M2 x 3-mm screws.
   
   
5. Replace the system board and the four M2.5 x 5 screws.
   
   
6. Replace in reverse order the other components that you removed in Removing the Battery Latch Assembly.
   
   

Back to Contents Page