Remove and Replace
WFM90D and WFM91D ServiceManual 6-5
Top Cover AssemblyThe top cover assembly containsreplaceable subparts. P roceduresfor removing
the subparts areincluded below.
Remove. Toremove the top cover assembly:
1. Remove the six retainingscrews using the Torx-tip screwdriver.S ee
Figure 6--1.
2. Gently lift the top cover offof the bottom cover.
NOTE. Do not allow dust to accumulate on the inside surface of the top cover;
set the top coverface up on your work surface or cover it with a lint-free cloth.
Replace. Toreplace the top cover assembly:
1. Align the top cover over the bottom cover so that the keypad buttons will
slide through the top coverkeypad holes.
2. Make surethat no wires will be pinched between the top and bottom covers.
3. Gently lower the top cover onto the bottom cover.Shake the top cover
slightly if neededto insert the keypad buttons into the top cover holes.
4. Install the six retainingscrews using the Torx-tip screwdriver.
Remove.To remove the LCD display lens:
1. Remove the top cover.Refer to Top Cover on page 6--5.
2. Press firmly on theLC D displaylens from the front of the top cover until it
comes loose from the top cover.
3. Clean any remaining glue residuefrom the top cover. Refer to Cleaning on
page 6--1.
Replace. Toreplace the LCD display lens: