Steelcase Cobi 434 Parts list manual

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939543402 Rev B
434 Cobi™Chair - Back Shell Replacement
If you have a problem, question, or request, call
your local dealer, or Steelcase Line 1 at
888.STEELCASE (888.783.3522)
for immediate action by people who want to help you.
(Outside the U.S.A., Canada, Mexico, Puerto Rico,
and the U.S. Virgin Islands, call: 1.616.247.2500)
Or visit our website: www.steelcase.com
© 2008 Steelcase Inc.
Grand Rapids, MI 49501
U.S.A.
Printed in U.S.A.
T-30
Magnetic
Bit Holder
Small flat-bladed
screwdriver
PROFILE OF HARDWARE
FOR CLARITY
M6 x 16mm
Pan Head Screw

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939543402 Rev B
1c
1a 1b
1. Begin removing the back fabric by first inserting screwdriver (1a) and
prying as shown (1b). Once fabric is pried away from the back shell, it is
now easy to loosen the rest of the fabric using your hand working right to
left. Pull fabric out of the way so screws may be
removed in step 2 (1c).
1
MAKE YOUR CUT
PATH SIMILAR TO THIS
1. Cut the fabric on back with scissors.
This will allow you to gain access to the
screws that must be removed in order to
replace the back shell.
or
If you want to save the back
shell, use this method.
If you want to throw away the
back shell, use this method.

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939543402 Rev B
3
3. Remove existing back shell.
or
2
or
2. Remove five (5) M6 x 16mm pan head screws
using a T-30 torx bit.

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939543402 Rev B
5
5. Tuck the rest of the fabric into the back
shell by working the fabric toward the center
of the bottom of the shell.
NOTE: There is a groove in the back shell
that will accept the edge of the fabric.
4
4. Place new back into place and secure with five (5)
M6 x 16mm pan head screws to a torque of 50-70 in-lbs.