IBM Z50 - Manual (Page 17)

2 IBM WorkPad z50, Mobile Companion 2
Screw Tightening Information
Loose screws can cause reliability problems. The IBM
WorkPad z50 addresses this problem with nylon coated
screws. Tighten screws as follows:
Plastic to Plastic
Turn an additional 90 degrees after the screw head
touches the surface of the plastic part.
90 Degrees More
Plastic
Logic card to Plastic
Turn an additional 180 degrees after the screw head
touches the surface of the logic card.
180 Degrees More
Plastic
Logic Card
Torque Driver
If you have a torque driver, refer to the “Torque”
instruction with each step.
Cradle Problems: If you suspect a problem with the
cradle, see “Cradle Checkout” on page 15.
How to Diagnose Multiple FRUs: When the
adapter or the device has more than one FRU, the error
code could be caused by any of them. Before replacing
multiple FRUs, try removing or exchanging each FRU, one
by one in the designated sequence, to see if the symptoms
change.