3D Mechanism Replacement Repair Guide

Difficulty

Difficult

Steps

Time Required

                          2 hours

Sections

3D Mechanism
15 steps

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What you need

Step 1

              3D Mechanism

Remove all 6 screws

Remove all 6 screws

1024

Step 2

Armrests Will need to be removed from chair
Remove the large bolts located on the left and right hand side of the chair. These can be removed using a large adjustable wrench.

Armrests Will need to be removed from chair

Remove the large bolts located on the left and right hand side of the chair. These can be removed using a large adjustable wrench.

Step 3

Remove all 6 screws on frame. 2 up top and 2 on both sides.

Remove all 6 screws on frame. 2 up top and 2 on both sides.

Step 4

this speaker wire at the top left of the frame will need to be disconnected.

this speaker wire at the top left of the frame will need to be disconnected.

Step 5

Next we need to unzip the front of the chair . do so by unzipping all zippers shown in this order. 1 on at top of chair and one at bottom, then one underneath the leather back-pad.
THESE ZIPPERS ARE WEAK AND WILL BREAK EASILY IF FORCED.

Next we need to unzip the front of the chair . do so by unzipping all zippers shown in this order. 1 on at top of chair and one at bottom, then one underneath the leather back-pad.

THESE ZIPPERS ARE WEAK AND WILL BREAK EASILY IF FORCED.

Step 6

Now that the front of chair is open remove this small plastic bracket by removing the 2 screws.

Now that the front of chair is open remove this small plastic bracket by removing the 2 screws.

Step 7

The mechanism has a wire harness that runs down to the main PCB in the chair. Most of our 3D mechs come with a new harness pre-attached and the old harness will need to be disconnected from the quick disconnect .
Don’t disconnect these if your new mechanism has them pre-attached.
This is an extremely vague photo , but the quick disconnect is located in the sheath on the lower left hand side of the chair . DON"T CUT THE SHEATHING JUST THE ZIP TIES . If you cant get this zip tied onto the frame like the factory had it no worries just make sure its secured in the general location with zip ties .
WHEN RE RUNNING THIS HARNESS BE SURE YOU ARE TAKING NOTE OF THE ORIGINAL ZIP TIE LOCATIONS .

The mechanism has a wire harness that runs down to the main PCB in the chair. Most of our 3D mechs come with a new harness pre-attached and the old harness will need to be disconnected from the quick disconnect .

Don’t disconnect these if your new mechanism has them pre-attached.

This is an extremely vague photo , but the quick disconnect is located in the sheath on the lower left hand side of the chair . DON"T CUT THE SHEATHING JUST THE ZIP TIES . If you cant get this zip tied onto the frame like the factory had it no worries just make sure its secured in the general location with zip ties .

WHEN RE RUNNING THIS HARNESS BE SURE YOU ARE TAKING NOTE OF THE ORIGINAL ZIP TIE LOCATIONS .

Step 8

              Wire harness

This is the entire upper harness that connects to the 3D mechanism .
Lower harness that connects to main PCB . see last step for location
Quick disconnect . located on frame .

This is the entire upper harness that connects to the 3D mechanism .

Lower harness that connects to main PCB . see last step for location

Quick disconnect . located on frame .

Step 9

              lower harness

IF YOU ARE REPLACING THE ENTIRE HARNESS FOLLOW THIS STEP, IF NOT THEN SKIP.
Remove the 3 screws on the lower power box cover to gain access to the lower wire harness
unscrew the wire harness clip by removing the 2 screws
These marked connectors are the motor wires and these are not all of the wires on this harness. please see last step

IF YOU ARE REPLACING THE ENTIRE HARNESS FOLLOW THIS STEP, IF NOT THEN SKIP.

Remove the 3 screws on the lower power box cover to gain access to the lower wire harness

unscrew the wire harness clip by removing the 2 screws

These marked connectors are the motor wires and these are not all of the wires on this harness. please see last step

Step 10

Now lift up on chair piece and push forward. the chair piece should now be separated from the frame piece.
Next remove all 4 bolts on top bracket.

Now lift up on chair piece and push forward. the chair piece should now be separated from the frame piece.

Next remove all 4 bolts on top bracket.

Step 11

Now remove the upper limit sensor from the 3 plastic pins and move it aside away from the magnet. DO NOT UNPLUG IT
Put the chair into Manual Shiatsu and hit the zone button 2 times , sometimes 1 press. You will know you did it right because the arrows will light up in the middle.
Shows if your in shiatsu mode .
Once these arrows are glowing you can drive the the mech out the top of chair using the UP arrow.
DO NOT DRIVE THE MECH OUT UNTIL THE HARNESS HAS BEEN FREED . SEE STEP 7&8

Now remove the upper limit sensor from the 3 plastic pins and move it aside away from the magnet. DO NOT UNPLUG IT

Put the chair into Manual Shiatsu and hit the zone button 2 times , sometimes 1 press. You will know you did it right because the arrows will light up in the middle.

Shows if your in shiatsu mode .

Once these arrows are glowing you can drive the the mech out the top of chair using the UP arrow.

DO NOT DRIVE THE MECH OUT UNTIL THE HARNESS HAS BEEN FREED . SEE STEP 7&8

Step 12

Alternatively you can pop out this magnet instead of the sensor . either way manual shiatsu mode has to be used .
BE SURE THIS MAGNET IS ON THE NEW 3D ASSEMBLY BEFORE PUTTING IT INTO THE CHAIR.

Alternatively you can pop out this magnet instead of the sensor . either way manual shiatsu mode has to be used .

BE SURE THIS MAGNET IS ON THE NEW 3D ASSEMBLY BEFORE PUTTING IT INTO THE CHAIR.

Step 13

The new mech will not come with the plastic wheels , these will need to be transferred from the old mech to the new one. see photo for location of wheels.

The new mech will not come with the plastic wheels , these will need to be transferred from the old mech to the new one. see photo for location of wheels.

Step 14

              Tips & Extra Things

If for some reason you cant get the mechanism into the chair due to the top axle blocking it . Its due to this 3D gear not being set at the correct angle.
To fix the angle simply remove this cover by removing the 2 screws and spin the motor belt until angle is correct.

If for some reason you cant get the mechanism into the chair due to the top axle blocking it . Its due to this 3D gear not being set at the correct angle.

To fix the angle simply remove this cover by removing the 2 screws and spin the motor belt until angle is correct.

Step 15

New mechanism should be installed below you will see some quick tips and reminders during reassembly.
DO NOT TEST MECHANISM IF TOP TRACK BAR IS NOT INSTALLED . WITHOUT THIS TOP BAR ON THE CHAIR THE MECHANISM WILL HAVE ZERO TRACTION AND COULD DAMAGE THE TRACK . SEE STEP 10
Remember to install any sensors you remove and to install them the way they were found . see step 11
when installing the backrest cover install the 2 middle screws first this will allow the top and bottom screws to automatically line up . see step 1

New mechanism should be installed below you will see some quick tips and reminders during reassembly.

DO NOT TEST MECHANISM IF TOP TRACK BAR IS NOT INSTALLED . WITHOUT THIS TOP BAR ON THE CHAIR THE MECHANISM WILL HAVE ZERO TRACTION AND COULD DAMAGE THE TRACK . SEE STEP 10

Remember to install any sensors you remove and to install them the way they were found . see step 11

when installing the backrest cover install the 2 middle screws first this will allow the top and bottom screws to automatically line up . see step 1

To reassemble your device, follow these instructions in reverse order.

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                    Nick

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Member-Contributed Guide#

What you need#

Member-Contributed Guide

What you need