iMac 27" 2017 Lower Support Bracket Replacement

Escrito Por: Adam O'Camb

Comentários: 10

iMac 27" 2017 Lower Support Bracket Replacement

Dificuldade

Moderate

Passos

Tempo necessário

No estimate

Introdução

Prerequisite-only guide to remove the lower support bracket in an iMac 27" 2017.

Ferramentas

Passo 1

Use a Phillips screwdriver to remove the nine 3.2 mm screws securing the support bracket.
You may need to peel up the display adhesive lining the bottom edge of the iMac enclosure to access the screws.

These are new steps from when I did this on my late 2015 retina iMac so I believe step 25 and 26 are optional (you can cope without doing it).

Amuseme -

I did not find it necessary to remove these screws and this bar

James Orwin -

I lost these 8 during the reassemble. The manual tells I need eight 3.2mm screws.

Can anyone help to clarify what screws I need. I don't really understand this size. Is this M2x3mm?

Daniel - 02/09/22

If you are replacing the SSD, I highly recommend removing this support bracket as doing so will make removing internal components much easier, and helps to minimise damage to any parts.

Not removing the support bracket does not save you any time.

It is very easy to reinstall this support bracket.

If you are worried about losing the screws, put them in a ziploc plastic bag.

Ray -

Passo 2

Remove the lower support bracket (a.k.a. "chin strap") from the iMac enclosure.
How to easily reinstall this support bracket:
Position the bracket diagonally.
Secure the rightmost screw enough to hold the bracket in place; keep it loose for now so the bracket can pivot.
Swing the left side of the bracket down until it sits horizontally in its original position.
Starting with the leftmost screw, install and tighten the remaining screws.

No comments on this ?

It's quite possibly the most difficult part to put back in the entire process

The screws are tiny and the there is no easy way to line up the holes on the bracket with the screws

Having got this far - it wasn't even all that necessary to remove this part in the first place

Severe pain in the neck

Eoin -

After an hour of painstaking mess - I managed to get 7 out of the 9 back in

By that time I could care less about the remaining 2

Eoin - 21/04/22

With the right tools and technique, the bracket can easily be replaced in under a couple of minutes.

Use a screwdriver with a magnetized tip which frees up one hand and place a screw on the tip first.

Then line up the screw hole on just one end of the bracket and using a pair of tweezers from the side, hold the bracket in place while you put in the screw.

Next, do the same on the other end of the bracket. After that, all of the screws in the middle are quick to replace. I didn't really have to touch the bracket again after the end screws were in place.

Hope that helps someone else since removing this bracket does make later steps a bit easier.

Max Z - 08/06/22

I used Max Z tweezers technique but screwed one screw in at the end and then worked my way to the other end.

Stephen B -

Max & Stephen are correct. Not difficult at all if you start at the right end (either end, probably, but I liked staying away from the power supply), and use a magnetic driver.

jiclark -

How to easily reinstall this support bracket:

1. Position the bracket the same way it’s pictured in Step 25 - diagonally

2. Screw in the first screw on the far right - but don’t fully screw it in

3. Lower the left side of the bracket so it’s in it’s original position (horizontal)

4. Screw in the screw on the far left

5. Screw all screws and fully tighten them

Ray -