IBM R31 - Manual (Page 77)

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Step Size (Quantity) Color Torque
1 M2.5 x L5 (2) Silver 3.2 kgf-cm
1150 Fan assembly
v “1010 Battery assembly” on page 57
v “1060 Keyboard” on page 61
v “1080 Middle cover” on page 63
v “1090 LCD assembly” on page 65
v “1100 Keyboard bezel” on page 66
v “1140 CPU spring” on page 70
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MT 2656, 2657, 2676 71