Steelcase 458 Operating and safety instructions

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939504227 Rev A
458 Chair Control 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
©2004 Steelcase Inc.
Grand Rapids, MI 49501
U.S.A.
Printed in U.S.A.

Page 2 of 5
939504227 Rev A
1.
2.

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939504227 Rev A
3.
4.
Discard base retaining clip.
Standard base
Stool base
5.

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939504227 Rev A
6.
7.
6a.
6c.
6b.

Page 5 of 5
939504227 Rev A
8.
9.
10.
8. Disconnect the ground strap clip.
9. Unsnap pneumatic ball.
10. Remove chair mechanism, install new chair
mechanism and reassemble chair parts.