Lenovo ThinkPad Yoga 14 (English) Hardware Maintenance Manual - ThinkPad Yoga - Page 84

Keyboard bezel assembly and LCD unit, When you install the thermal fan assembly

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Loosen the screws in the alphabetical order as shown. Then remove the thermal fan assembly. 2 2f 2d 2a 2g 3 2e 2c 2b When you install the thermal fan assembly: • Always wear fingerstalls when handling the thermal fan assembly. Do not touch or hold any part of the thermal fan assembly with bare fingers. • Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked a as shown in the following illustrations. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component. You should peel the thin film off from the rubbers marked b . a b • Do not touch the thermal grease. • Do not press, touch, or rotate the fan impeller. • Do not touch the fan inlet hole. • Do not twist or pull the cable of the thermal fan assembly. • Do not apply pressure on the top and bottom covers of the thermal fan assembly. • Do not press the heat pipe. Hold both sides of the heat pipe if you need to take the thermal fan assembly. • Do not shake or drop the thermal fan assembly. • Ensure that the fan connector is attached firmly. 1170 Keyboard bezel assembly and LCD unit For access, remove these FRUs in order: • "1010 Lenovo-OneLink-connector cover" on page 60 • "1020 Keyboard" on page 61 78 Hardware Maintenance Manual

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Loosen the screws in the alphabetical order as shown. Then remove the thermal fan assembly.
2a
2b
2c
2e
2g
2f
2d
2
3
When you install the thermal fan assembly:
• Always wear fingerstalls when handling the thermal fan assembly. Do not touch or hold any part of the
thermal fan assembly with bare fingers.
• Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of
0.2 grams, on the part marked
a
as shown in the following illustrations. Either too much or too less
application of grease can cause a thermal problem due to imperfect contact with a component. You
should peel the thin film off from the rubbers marked
b
.
b
a
• Do not touch the thermal grease.
• Do not press, touch, or rotate the fan impeller.
• Do not touch the fan inlet hole.
• Do not twist or pull the cable of the thermal fan assembly.
• Do not apply pressure on the top and bottom covers of the thermal fan assembly.
• Do not press the heat pipe. Hold both sides of the heat pipe if you need to take the thermal fan assembly.
• Do not shake or drop the thermal fan assembly.
• Ensure that the fan connector is attached firmly.
1170 Keyboard bezel assembly and LCD unit
For access, remove these FRUs in order:
• “1010 Lenovo-OneLink-connector cover” on page 60
• “1020 Keyboard” on page 61
78
Hardware Maintenance Manual