Steelcase Amia 482 Series User manual

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939548202 Rev D
482 Amia™ ™ and Amia Air Chair for Customer Service
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
©2007 Steelcase Inc.
Grand Rapids, MI 49501
U.S.A.
Printed in U.S.A.
Table of Contents
Page Topic
2-3 Removal & Installation of the Seat
5 Removal & Installation of the Arm Cap
6-7 Removal & Installation of the Back Cushion
8Removal & Installation of the Lumbar
8 Removal & Installation of the Back Shell
9
Removal & Installation of the Air Lumbar Pad
10
Removal & Installation of the Air Back Shellll
11-12 Removal & Installation of the Back Assembly
13 Removal & Installation of the Base
14 Removal & Installation of the Base Cap
15 Removal & Installation of the Pneumatic Cylinder
16 Removal & Installation of the Stool Footring
17-18 Removal & Installation of the Chair Control
19 Installation of Chair Control Bumpers
PNEUMATIC CYLINDER
REMOVAL TOOL
or a flat-bladed
screwdriver that is 8"
or longer
1/2" Socket
Torx T-20 & T25
4 Removal & Installation of the Arms

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D
Removal & Installation
of the Seat
1. Locate the white
quick release tab
located on the left
hand side of the chair
(as you sit in it)
between the plates.
2. Lift the quick
release tab (2a) while
lifting the seat slide
lever (2b) and sliding
the seat forward & off.
2a
QUICK RELEASE TAB
FRONT REAR
FRONT
REAR 1
2b
SEAT SLIDE
LEVER

3. Align the new seat
with the chair control
and engage the slots on
the bottom of the seat
with the tabs located on
the seat bearings (3a).
Slide seat fully backward
while holding up on the
seat slide lever (3b).
3a
TAB ON BEARING SLOT ON BOTTOM
OF CHAIR
SEAT SLIDE
LEVER
3b
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5
4
4
5
SCREW
3
3
2
SCREW
2
1. Follow steps on page 2 for
seat removal.
2. Remove two (2) screws on
each arm.
3. Remove old arms.
4. Install new arms.
5. Install two (2) screws on each
arm. Torque to 25-35 in-lbs.
6. Follow steps on page 3for
seat installation.
Removal & Installation of
the Arms

1a
1b
Removal & Installation
of the Arm Cap
1. To remove arm cap, remove four
(4) screws (1a) and remove cap from
arm (1b). To replace arm cap, reverse
steps 1a and 1b and tighten screws to
6-10 in-lbs.
When installing, make sure to align
the ribs on the two (2) screw bosses
of the arm cap to the rear of the arm.
RIBS ON THE
SCREW BOSSES
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Removal & Installation
of the Back Cushion
1. Lay chair on its side and peel
the j-channel, on the back cushion,
from the back assembly.
2. Flip chair over and lift on the
back cushion to remove.
BACK ASSEMBLY
J-CHANNEL ON THE
BACK CUSHION
1
2
BACK CUSHION
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CHAIR BACK
CUSHION CHAIR BACK
SHELL
4. Lay chair on its side and
install the j-channel, on the
back cushion, to the back
assembly.
REAR VIEW OF CHAIR
AFTER STEP 3b
3b
CHAIR BACK
CUSHION CHAIR BACK
SHELL
HOOK
REAR VIEW OF CHAIR
AFTER STEP 3a
3c
SLOT ON
CHAIR BACK
CUSHION CHAIR BACK
CLIP
CHAIR BACK
SHELL
3a
CHAIR BACK
CUSHION CHAIR BACK
SHELL
HOOKS
3. Place back cushion onto
the chair back and slide back
cushion onto the chair back by
starting at the bottom (3a) and
working your hands upward as
shown (3b & 3c) until installed.
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BACK ASSEMBLY
J-CHANNEL ON THE
BACK CUSHION
4

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Removal & Installation of the Lumbar
1a. Follow steps on page 6 for removal
of the back cushion.
2a. Remove the lumbar by pulling it out. To install
the lumbar, place one side of the lumbar into position in
the back assembly. Then, flex the lumbar (and the wires of
the lumbar) inward and place the other side into position.
3a. Follow steps on page 7 for installation
of the back cushion.
Removal & Installation of the Back Shell
1b. Follow steps on page 6 for removal
of the back cushion.
2b. Refer to Removal & Installation of the Lumbar
above to remove the lumbar.
3b. Remove seven (7) screws and two (2) clips.
Note: Save the clips for reassembly.
4b. Remove the back shell. Reverse step for installation
of the back shell.
5b. Attach seven (7) screws and two (2) clips.
Torque to 25-50 in-lbs.
6b. Refer to installation of the Lumbar above to
install the lumbar.
7b. Follow steps on page 7 for installation of the
back cushion.
LUMBAR
2a
4b
BACK SHELL
CLIP

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Removal of
the Amia Air Back Shell
Remove four (4) Back Shell screws.
Push bottom out (2a) and pull up on
Back Shell to remove (2b).
When lumbar is installed, center it between the
two lower hooks.
Start with Back Shell top bosses in front of Back
Frame top edge (4a) and Back Shell lower tabs in
front of cross bar (4b).
5. Compress Back Shell to Back Frame to engage
all 6 Hooks, then slide the Shell down.
6. Reverse step 1 to install four (4) screws into the
Back Shell. to 13-17 in-lbs.
1
2a
2b
3
2x
2x
2x
6x
4x
4a
4b
5

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Removal & Installation of the Lumbar
for Amia Air
1. Follow steps on page 9 for removal
of the Back Shell.
2. With Back Shell removed, the Lumbar
Handles can be removed from the Lumbar pad.
Rotate the Handle to 45° (2a), then shift the gap to
one end (2b) and rotate Handle to unsnap
from Lumbar Pad (2c).
3. Remove lumbar by sliding it out of the Back Shell
slot (3a). Reverse step for installation of lumbar. Only
Handle snaps should protrude from
the Back Shell slot (3b).
4. Reverse step 2to reinstall the Lumbar Handles.
NOTE: When adding a Lumbar Pad to a chair
that was purchased without one you will need to
remove the Lumbar Filler pieces. (4)
To remove, pull out by hand or use a
flat blade screw driver to pop-out.
2x
2x
2a
2c2b
3a
4
5. Follow steps on page 9 for installation
of the Back Shell.
3b

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Removal & Installation of
the Back Assembly
1. Turn chair over.
2. Remove four (4) back
assembly bolts.
3. Remove back assembly
and back angle rear cover.
Set back angle rear cover
aside until reassembly.
1
2
BACK
ASSEMBLY
3
BACK ANGLE
REAR COVER
BOLT

5
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BACK
ASSEMBLY
4. Install back angle rear cover onto
the edge of the chair control
(4a). Insert the back assembly (4b).
5. Secure using four (4) back
assembly bolts. Tighten to
130-190 in-lbs.
6. Turn chair over.
BACK ANGLE
REAR COVER
BOLT
6
4a
4b

BASE
1a
3
4
5
1b
Removal & Installation
of the Base
1. Turn chair on its side and hit
bottom of the cylinder with a
hammer (1a) while pulling forward
on the chair base (1b).
2. Remove chair base.
3. To install base, align base with
cylinder and slide onto cylinder.
4. Turn chair over.
5. Sit in chair to seat the cylinder
into the base.
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Removal & Installation
of the Base Cap
1. Follow the steps on page 13
Follow the steps on page 13
for base removal.
2. Using your hands, pry the
base cap off of the base (2a) and
remove (2b).
3. To install base cap, place the
cap onto the base and press.
4.
for base installation.
2a
2b
3

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PNEUMATIC CYLINDER
REMOVAL TOOL
1. Follow steps on page 13 for
base removal.
2. Install the pneumatic
cylinder removal tool (part
number 879100100) on the top
part of the column, as close as
possible to the control.
3. Apply lifting force to the
column, with one hand. With
the hammer in the other hand,
give the removal tool several
solid hits, on the flat part.
If pneumatic cylinder does not
separate from control, apply
WD-40 where lift is embedded
into control. Wait approx. 20
minutes and repeat step 3.
4. Install cylinder into chair
control.
5. Follow steps on page 13 for
base installation.
6. Flip the chair over a final
time and adjust the pneumatic
lever (if required) to have a
1/4" of free vertical movement.
2a 2b
Removal & Installation of
the Pneumatic Cylinder
3
4
6
PNEUMATIC LEVER

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Removal & Installation
of the Footring
1. Follow steps on page 13 for
base removal.
2. Twist footring and remove.
3. Reverse step 2 to install new
footring.
4. Follow steps on page 13 for
base installation.
2

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1. Follow steps on page 11 to
remove the back assembly.
2. Follow steps on page 2 to
remove the seat.
3. Follow steps on page 4 to
remove the arms.
4. Follow steps on page 13 to
remove the base.
5. If footring is installed, follow
steps on page 16 to remove the
footring.
6. Follow steps on page 15 to
remove the cylinder.
7. Unsnap front corners of the
engine cover and slide forward
(7a) and remove (7b).
Removal & Installation of
the Chair Control
ENGINE COVER
7a
7b

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8. To install the new chair
control, begin by reversing steps
7a and 7b.
9. Follow steps on page 15 to
install the cylinder.
10. Follow steps on page 16 to
install the footring if necessary.
11. Follow steps on page 13 to
install the base.
12. Follow steps on page 4 to
install the arms.
13. Follow steps on page 3 to
install the seat.
14. Follow steps on page 12 to
install the back assembly.
ENGINE COVER
7a
7b

Installation of Chair Control Bumpers
1. Refer to page 2 and remove the seat
assembly from the chair. Access the chair
control bumpers through the rectangular opening
in the base assembly top plate.
2. Slide bumper onto the edge of the reclining
mechanism frame as shown (2a). Then, force
the bumper top flange up through the hole in the
mechanism frame (2b).
3. Repeat step 2 if necessary, for bumper
on opposite side of the chair.
4. Refer to page 3 and
reinstall seat assembly.
1
CHAIR CONTROL BUMPER
(LEFT SIDE INSTALLATION VIEW)
(RIGHT SIDE INSTALLATION VIEW)
CHAIR CONTROL BUMPER
BUMPER
TOP FLANGE
RECLINING
MECHANISM FRAME
BUMPER
TOP FLANGE
2b
2b
2a 2a
RECLINING
MECHANISM FRAME
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