Lenovo B50-80 Hardware Maintenance Manual - Lenovo B50-xx, B50-30 Touch Notebo - Page 57

Fan and heat sink assembly

Page 57 highlights

Lenovo B50-30/B50-30 Touch/B50-45/B50-70/B50-80 1140 Fan and heat sink assembly For access, remove these FRUs in order: • "1010 Battery pack" on page 33 • "1020 Optical drive" on page 34 • "1030 Bottom slot cover" on page 36 • "1040 Hard disk drive" on page 37 • "1050 DIMM" on page 39 • "1060 PCI Express Mini Card for wireless LAN/WAN" on page 40 • "1070 Keyboard" on page 41 • "1080 Keyboard bezel" on page 43 • "1110 Led board" on page 48 • "1130 System board" on page 50 Figure 14. Removal steps of fan and heat sink assembly Disconnect the fan connector in the direction by arrow a. Remove the screw b and six screws c. Then remove the fan and heat sink in the direction as shown by arrow d. 3 3 3 3 4 2 3 1 Step Screw (quantity) 7 d b M2 x 5 mm, flat-head, nylok-coated (1) 7 d c M2 x 3 mm, flat-head, nylok-coated (6) Color Torque Silver 1.5~2.0kgf.cm Black 1.0~1.5kgf.cm When installing: Make sure that all the fan and DC-IN connectors are attached firmly. 53

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Lenovo B50-30/B50-30 Touch/B50-45/B50-70/B50-80
53
1140 Fan and heat sink assembly
For access, remove these FRUs in order:
“1010 Battery pack” on page 33
“1020 Optical drive” on page 34
“1030 Bottom slot cover” on page 36
“1040 Hard disk drive” on page 37
“1050 DIMM” on page 39
“1060 PCI Express Mini Card for wireless LAN/WAN” on page 40
“1070 Keyboard” on page 41
“1080 Keyboard bezel” on page 43
“1110 Led board” on page 48
“1130 System board” on page 50
Figure 14. Removal steps of fan and heat sink assembly
Disconnect the fan connector in the direction by arrow
. Remove the screw
and six screws
. Then remove the fan and heat sink in the direction as shown
by arrow
When installing:
Make sure that all the fan and DC-IN connectors are attached
firmly.
Step
Screw (quantity)
Color
Torque
M2 x 5 mm, flat-head, nylok-coated (1)
Silver
1.5~2.0kgf.cm
M2 x 3 mm, flat-head, nylok-coated (6)
Black
1.0~1.5kgf.cm
a
b
c
d
3
3
3
3
3
2
1
4
b
c