Difficulty

Easy

Steps

6

Time Required

                          2 hours

Sections

1

  • Irest SL A28-1 Massage Chair Jerking Bump Fix
  • 6 steps

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  • BackIrest SL A28-1 Massage Chair

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Introduction

No parts need to be replaced.

What you need

Step 1

              Which chair is it ?
  • The chair is one like this.

The chair is one like this.

1024

Step 2

              How to open the chair
  • Fold backrest forward by pressing the release tab in and under the chair (Arrowed) and push the backrest forward.
  • On the two last pictures you can see the release lock and tap after the backrest is folded forward

Fold backrest forward by pressing the release tab in and under the chair (Arrowed) and push the backrest forward.

On the two last pictures you can see the release lock and tap after the backrest is folded forward

Step 3

              Remove the screws
  • Remove the screw for the cord inlet (Marked as 1) and remove the cord cover
  • Remove the 5 screws (marked 2) for the back cover - Please note they are NOT all the same size, so pay attention to the positions

Remove the screw for the cord inlet (Marked as 1) and remove the cord cover

Remove the 5 screws (marked 2) for the back cover - Please note they are NOT all the same size, so pay attention to the positions

Step 4

              Remove the cord and back cover
  • With the cord cover (#1 in previous step) removed, remove the two connectors
  • The connectors on my model was protected with plastic strips to prevent me from releasing the lock tap - didn’t work - I took the picture AFTER I had removed the cover so it was easier to see what the connectors looked like
  • Remove the strips or pull them towards the wires (Upwards) and use a flathead screwdriver to prise the lock open and remove the connector
  • Remove the back cover

With the cord cover (#1 in previous step) removed, remove the two connectors

The connectors on my model was protected with plastic strips to prevent me from releasing the lock tap - didn’t work - I took the picture AFTER I had removed the cover so it was easier to see what the connectors looked like

Remove the strips or pull them towards the wires (Upwards) and use a flathead screwdriver to prise the lock open and remove the connector

Remove the back cover

Step 5

              Why was there a jerky bump ?
  • In my case I looked at the mechanism and saw no immediate failures
  • I then noticed that a black strap (Arrowed) was showing signs of being curled/crumbled
  • Further examination shows that the strap, which goes from top to bottom, was not aligned 100 % centered between the massage wheels (I try to show that with the red line) and the strap had become a little loose
  • The result was the that the right wheel was sort of “picking up” the strap, so both wheels was on the same side of the strap
  • At some point the right massage wheel had to cross back again over the strap hereby crumbling it and giving this jerky bump.

In my case I looked at the mechanism and saw no immediate failures

I then noticed that a black strap (Arrowed) was showing signs of being curled/crumbled

Further examination shows that the strap, which goes from top to bottom, was not aligned 100 % centered between the massage wheels (I try to show that with the red line) and the strap had become a little loose

The result was the that the right wheel was sort of “picking up” the strap, so both wheels was on the same side of the strap

At some point the right massage wheel had to cross back again over the strap hereby crumbling it and giving this jerky bump.

Step 6

              Fix the issue - tighten and move the strap a little
  • The fix is to tighten the strap - there are two ways
  • 1 - Remove the frame with wheels and rollers and re-align + tighten the strap
  • 2 - Tighten and partly re-align the strap
  • I opted for solution 2
  • I tightened the strap at the botton of the frame, because this is where I had space to manouvre
  • I positioned the strap more to the left so it got centered
  • I used a 1.5 mm drill to prepare a whole in the frame so the plate screw (See picture 2) does not rapture the woodden frame
  • I used a plate screw to secure the strap in the new position

The fix is to tighten the strap - there are two ways

1 - Remove the frame with wheels and rollers and re-align + tighten the strap

2 - Tighten and partly re-align the strap

I opted for solution 2

I tightened the strap at the botton of the frame, because this is where I had space to manouvre

I positioned the strap more to the left so it got centered

I used a 1.5 mm drill to prepare a whole in the frame so the plate screw (See picture 2) does not rapture the woodden frame

I used a plate screw to secure the strap in the new position

To reassemble your device, re-connect the cable connectors

Then place the back cover again, making sure it fits without pinching something

Finally place the cable/cord cover

Cancel: I did not complete this guide.

Author

                                      with 3 other contributors 


                    Jan Carsten Jorgensen

Member since: 02/28/2016

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