What's new
  • Please do not post any links until you have 3 posts as they will automatically be rejected to prevent SPAM. Many words are also blocked due to being used in SPAM Messages. Thanks!

DIY Guide: Take Apart Gentle Typhoon Ball Bearing PC Cooling Fan

Mnpctech

Well-known member
Joined
Oct 8, 2009
Messages
1,016
Location
Minnesota
The Nidec-Servo's Scythe Gentle Typhoon (Model# D122C). This fan has been regarded as the best static pressure optimized fan by DIY PC community since it's release in 2008. The original D122C is no longer made, but there is limited stock available at some online retailers. Last year the D122C Scythe GT fan was resurrected and manufactured as "Darkside Black Edition" by Dazmode. It's the same specs as the original, but now has Black fan blades. Many PC Modders including myself have painted these fans to fit the color schemes of our custom PC builds. I've been asked several times over the years how to remove the metal c-clip without losing or breaking it?*This is my DIY guide to removing and installing external retaining ring or c-clip. Like many others, I've also lost these tiny c-clips while learning the best technique for handling this task.

Nidec-Servo's Scythe Gentle Typhoon Factory Spec PDF link, http://www.nidec-servo.com/en/digital/pdf/D1225C.pdf*
Speed: *2150RPM
Air performance : 68.8CFM
Nose: 34db (25cm from the fan, free air)
Power: 12VDC, 0.123A (0.63A peak max)
Operational voltage range: 5-12V (~900rpm-2150rpm)
Bearing: Ball
Expected life: 100000h/35c or 55000h/60c
Appearance: Full black
Dimensions: *119 x 119 x 25 mm / 4.68 x 4.68 x 0.98 in


WARNING:

Perform this task with Safety Glasses, the tiny Black metal retaining ring (c-clip) can and likely will pop off, so perform this task in a clean workspace, so you can find it. I suggest doing the work on a large white bed sheet and holding a large magnet near the fan hub as you remove and re-install the c-clip, to increase you're chances of not losing the c-clip. I haven't found a source for ordering replacement c-clips yet, but I'm still searching.


apart_1_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Here is my suggested Tools & Supplies

Safety Glasses (not pictured)
Heat Gun for removing the fan label. Hair Dryer on HIGH setting will work as well.
10" Wire Cable Tie
Large magnet (not pictured)
External Fixed-Tip Retaining Ring Pliers
Tweezers
Needle Nose Pliers
Super Glue (not pictured)

apart_2_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


apart_3_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


External Fixed-Tip Retaining Ring Pliers, Ball Bearing PC Cooling Fan External Retaining Ring or C-Clip Pliers

apart_4_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


The fan blade looks as if it would snap-on and off, but not the case.

apart_5_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


We need to remove the back label to access the external metal c-clip on the fan shaft.

apart_6_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Swipe heat gun or hair dryer back and forth over the label.

apart_7_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Use the Tweezer to peel off the fan label.

apart_8_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Stick the fan label on a clean metal surface while you perform your work.

apart_9_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


You will tie down the fan hub with this Twisty tie. The fan shaft has a retention spring inside. You need to compress this spring, so you can remove the metal c-clip. If you don't, it's almost a guarantee that the c-clip will fly off the shaft faster than a bullet.

apart_9a_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Using Twisty tie to compress the fan hub spring, by tying down the hub to the fan frame.

apart_9b_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


apart_9c_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Close ups of the Black metal c-clip inside the Scythe Gentle Typhoon.

apart_9d_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg
 

Mnpctech

Well-known member
Joined
Oct 8, 2009
Messages
1,016
Location
Minnesota
apart_9e_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Insert the two prongs of the Retaining Ring Plier inside the jaw of the c-clip.

apart_9f_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


If you have a large Magnet, Position it near the fan hub, just in case the c-clip pops off.

apart_9g_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


apart_9h_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Holding the black metal c-clip in the Retaining Ring Plier.

apart_9i_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


You will widen the jaw of the c-clip and need to bend it back to it's original opening, so it maintains it's grip.

apart_9j_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Hold the c-clip in the Tweezer while using a Needle Nose Plier to compress jaw of the c-clip.

apart_9k_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Doing this will allow you to re-use the metal c-clip.

apart_9l_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Here is the Scythe Gentle Typhoon 120mm Cooling fan dismantled

paint_pc_fan_corsair_sp_120mm_140mm_guide_230T_case_mod2.jpg


If you're wanting to paint your PC cooling fan. You can watch my

https://www.youtube.com/watch?v=AqIURuIeqjU

apart_9m_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


View of the spring inside the Gentle Typhoon PC Cooling fan, "Be careful, don't lose it!"

apart_9n_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


To re-install the metal fan c-clip, grip the c-clip in reverse position on the plier.

apart_9o_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Reversing the c-clip on the plier will make it easier to re-install the metal cooling fan c-clip

apart_9p_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


Before releasing the plier, make sure the c-clip is properly seated on the fan shaft, otherwise it will fly off!

apart_9q_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


If the cooling fan label has very little adhesion left, I'll apply drops of Krazy or Super Glue to re-apply the label.

apart_9r_disassemble_pc_cooling_fan_clip_ring_tool_mnpctech_gentle_typhoon_darkside.jpg


The job is finished!

Please post other PC cooling fan models you know of that use this same type of metal c-clip
 

lowfat

Moderator
Staff member
Joined
Feb 12, 2007
Messages
11,271
Location
Grande Prairie, AB
Neat guide.

However you don't need to disassemble a Gentle Typhoon to paint the blades if that is the goal. You just need to heat up the fan hub w/ a heatgun. The glue will release and the blades will pull off.

export-18-9.jpg


export-17-9.jpg
 

10e

Well-known member
Joined
Jan 28, 2008
Messages
782
Location
Markham, Ontario
Awesome tutorial Bill, and thanks for the extra info, lowfat. Now I can paint my favourite fans an ugly colour that will anger my wife.
 

Mnpctech

Well-known member
Joined
Oct 8, 2009
Messages
1,016
Location
Minnesota
lowfat is an exception, hes an experienced Modder. However, if somebody who is an inexperienced Modder applies too much heat to the hub, they could warp their fan blades, which will decrease the performance and longevity of their fan. also, somebody suggested trying team associated e-clip, in case losing the factory e-clip, I'll order some and see which one works best for the gentle Typhoon, https://www.teamassociated.com/parts/hardware/clips/
 

Latest posts

Twitter

Top