Tools Required
HermanMiller
Cosm Chair Self Adjusting Tilt
Replacement
How to dissemble and assemble your
self adjusting tilt.
Power
Driver
6mm
Hex Bit
600 Pound
Quick Clamp
Flat Screw
Driver
T-
Torx Bit
T-
Torx Bit
Step
. Using T- Torx bit, unscrew the attachment bolt and remove the height
adjust control down.
#2 Mallet Li-o
Tool
Needle
Nose Pliers
Step
. Using flat screw driver, unhook the four tabs of upper antler cover
and take out.
Step
. Insert the flat screw driver into the lower antler cover hole and gently pry
down until both sides are released.
. Pull and take out the lower antler cover.
1HermanMiller for Cosm chair Dissembly and Reassembly Instructions1BKJD4 rev A
2HermanMiller for Cosm chair Dissembly and Reassembly Instructions1BKJD4 rev A
Step Step
. Using flat screw driver, li up and pull out the tilt housing cover. . slide in the flat screw driver from back of the tilt and catch the back
edge of cable actuator housing.
. Pry down and pop the control loose to take out.
. Using power drive with mm hex bit which needs to be inches long to
take out the arm from the chair.
Step Step
. Place the pound quick clamp with jaws reversed in between the
frames of the chair and gently clamp until some resistance.
Note: Don’t over stretch the frame.
3HermanMiller for Cosm chair Dissembly and Reassembly Instructions1BKJD4 rev A
Step
Step Step
Step
. Remove the beam bolts using T- Torx bit.
. Pull out and up on the rear spine.
. Rotate the entire chair forward and take out the back frame assembly.
. Take out the tilt bushing.
. Remove the nylon bushing by using needle nose pliers.
4HermanMiller for Cosm chair Dissembly and Reassembly Instructions1BKJD4 rev A
Step
Step Step
Step
. Take out the flange bushing.
. Place foot on the casting and apply pressure to the tilt and pull the old
steel plate out at the same time.
. Remove the old rear casting from the tilt.
. Make sure the tension block is all the way forward.
5HermanMiller for Cosm chair Dissembly and Reassembly Instructions1BKJD4 rev A
Step
Step
. Place the li-o tool by facing tappered edge against the
bottom of the tilt and hit with mallet.
. Take out the tilt bushing.
Step
. Take out the spring boards from tilt.
. Remove the old tilt from base.
Step
6HermanMiller for Cosm chair Dissembly and Reassembly Instructions1BKJD4 rev A
. Place the new tilt into base and press it hardly.
Step
New Self Adjusting Tilt Installation
. Make sure the clip edge of the spring boards facing backward
and install the spring board holes into tilt tabs.
Step
. Insert the tilt bushing.
Step
. Hook the rear casting in position and rotate down.
. Drop the steel plate in place and apply pressure by foot.
Step
7HermanMiller for Cosm chair Dissembly and Reassembly Instructions1BKJD4 rev A
Step
. Install the tilt bushing.
Step
. Install the flange bushing.
Step
. To Install the back frame assembly, line up the notches in the front
casting with the bushing and rotate the entire assembly backwards.
. Hook the back frame legs inside the casting.
Step
. Place the pound quick clamp back in and pump it until
the slot in the back frame assembly line up with the casting.
. Push the rear spine into place.
8HermanMiller for Cosm chair Dissembly and Reassembly Instructions1BKJD4 rev A
Step
. Insert the nylon bushing.
Step
. Using T- Torx bit, install the beam bolts.
Step Step
. Install the arms to the chair.. To Install height adjust cable assembly, make the fork edge of the cable
actuator hooked under the lip inside the tilt.
. Using # screw driver, pry down on the top of the housing and make sure
not to impact with cable.
9HermanMiller for Cosm chair Dissembly and Reassembly Instructions1BKJD4 rev A
Step
. Slide the tilt housing cover in and make the center post on
the cover snaps into tilt tab.
Step
. Install the upper antler cover inside the depression in the castings
and snap into place.
Step Step
. Place the height adjust control in position and install it using
T- torx bit. Check the cable for proper actuation.
. Install the lower antler cover, by putting the back hooks into
casting holes rst and snap the rear edge of the cover down.
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