Steelcase 465 Think User Manual

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939546506 Rev E
R
A
Y
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Index
Topic Page
Removal of the Seat Cushion  2 Installation of the Seat Cushion  3 Removal of the Back Cushion  4 Installation of the Back Cushion  5 Removal & Installation of the 3D Knit Back Cushion  6 Installation of the Headrest  7 Removal of the Headrest  8 Removal & Installation of the Lumbar  9 Removal & Installation of the Back Frame  10 Removal & Installation of the Seat Frame  11 Removal & Installation of the Arms  12 Prior to October 3, 2005 Replacement of the Arm Cap  16 Removal & Installation of the Mechanism  17 Removal & Installation of the Base  18 Removal & Installation of the Pneumatic Cylinder  19
465 Think® for Customer Service
#2 and #3
Phillips
Torx
T15, T20 and T30 (An Allen wrench can be subsituted if a torx drive is not available)
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
©
2006 Steelcase Inc. Grand Rapids, MI 49501 U.S.A.
Printed in U.S.A.
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939546506 Rev E
4
3
Removal of the Seat Cushion
1
2
6
Side view of
cushion installed
START REMOVAL AT BACK/REAR CORNER OF THE SEAT. CAREFULLY USE A FLAT-BLADED SCREWDRIVER TO PUSH THE J-CHANNEL OUT.
J-CHANNEL RETAINER CLIP
SEAT CUSHION
FLAT-BLADED SCREWDRIVER
SEAT CUSHION
5
FLAT-BLADED
SCREWDRIVER
SEAT CUSHION
J-CHANNEL
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2
Side view of
cushion installed
Installing the Seat Cushion
5
SEAT CUSHION
1
3
4
PLASTIC
RIB
1
4
"
/
6
SEAT CUSHION
J-CHANNEL
J-CHANNEL RETAINER CLIP
SNAP!
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939546506 Rev E
Removal of the Back Cushion
1
4
3
2
5
J-CHANNEL
BACK CUSHION
FLAT-BLADED SCREWDRIVER
Side view of
cushion installed
START REMOVAL AT THE BOTTOM CORNER OF THE BACK. CAREFULLY USE A FLAT-BLADED SCREWDRIVER TO PUSH THE J-CHANNEL OUT.
FLAT-BLADED
SCREWDRIVER
J-CHANNEL
J-CHANNEL
FLAT-BLADED SCREWDRIVER
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4
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1
3
7
BACK CUSHION
6
BACK CUSHION
Installing the Back Cushion
2
BACK CUSHION
5
Side view of
cushion installed
SNAP!
SNAP!
Page 6
Installation & Removal
of the 3D Knit Back Cushion
1
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3
5
8
BACK CUSHION
2
BACK
CUSHION
6
4
7
BACK CUSHION
SNAP!
SNAP!
Side view of
cushion installed
3-D KNIT BACK CUSHION
Page 7
1
2
4
3a
3b
Page 7 of 19
939546506 Rev E
Installation of the Headrest
1. Slide the headrest support
bracket under fabric into position.  NOTE: May be easier to remove back cushion first.
2. Install two (2) outside screws
into headrest support bracket.
3. Mount headrest support with
two (2) inside screws.
4. Slide headrest arm assembly
into headrest support.
HEADREST ARM
ASSEMBLY
HEADREST SUPPORT
HEADREST SUPPORT BRACKET
NOTE: If a shipping plug is located in the
headrest support, lift the plug out before installing the headrest arm assembly.
Page 8
1b
1a
2
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939546506 Rev E
Removal of the Headrest
1. Place a flat-bladed screwdriver under
the headrest arm assembly and pry the headrest support outward (1a) to allow the headrest arm to slide out (1b).
2. Remove four (4) screws on the back
frame with a torx T20 screwdriver and remove the headrest support bracket and the headrest support.
Side View
HEADREST SUPPORT
HEADREST ARM ASSEMBLY
HEADREST SUPPORT BRACKET
2
Page 9
SLOTS
Removal & Installation
of the Lumbar
LUMBAR
Installation
Removal
SLOTS
1a
1b
1c
2a
2b
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1. Slide the cushion over (1a).
Insert a flat bladed screwdriver into the lumbar to release the clip (1b). While the screwdriver is still installed into the lumbar, pull the lumber clip away from the chair body (1c).
Repeat for the opposite side.
2. Slide the lumbar between the
back cushion and the wires (2a). With your thumb, snap the lumber clip into the slot in the chair body (2b).
Repeat for the opposite side.
TIP: Removed easiest in the lowest position.
TIP: Installed easiest in the lowest position.
Page 10
2a
2b
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Removal & Installation of the Back Frame
1. Lift seat slide lever (1a) and slide seat
forward all the way(1b).
2. Lay back frame onto seat cushion (2a)
and align backstops (2b). Holding onto the bottom of the back frame, rotate back frame (2c) and slide onto backstops (2d).
3. Install pivot screws, with a torx T30
screwdriver (or Allen wrench), on both sides of the back frame.  Reverse to remove.
1b
1a
2c
2d
BACK STOP
BACK STOP
BACK STOP
BACK FRAME
BACK FRAME
BACK
FRAME
2d
3
GROOVE IN BACK FRAME
BACK FRAME
SEAT SLIDE LEVER
Page 11
1a
1b
2b
1c
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Installation & Removal of the Seat Frame
NOTE: This operation can be done with or
without the upholstery installed. 
Installation:
1. Install black slides onto mechanism (1a).
Lift up on seat slide lever, slide seat frame onto side rails (1b) and lower seat slide lever (1c). For chairs manufactured after October 2008, the clips have snapped into position and the installation is complete.   For chairs manufactured before October 2008:
2. Insert screw and seat slide stop block
(colored in apperance) on seat frame (2a) (note position of stop block) with a torx T20 screwdriver (or Allen wrench) (2b). Repeat for opposite side. 
Removal:
Reverse to remove for chairs manufactured before October 2008. 
For chairs manufactured after October 2008:
3. Lift the seat bail.
4. Lift up on the release clip and slide the
side forward as far as it will go (4a). Repeat on the other side and remove the seat (4b).
MANUFACTURED
AFTER OCTOBER 2008
2a
4b
4a
3
Page 12
Wide Position
Narrow Position
Arm Attachment Screws
3
2a
2c
2b
A
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Removal & Installation of the Arms Prior to October 3, 2005
Removal:
1. See page 11 for removal of the seat slide stop
blocks.
2. Lift the seat slide lever (2a) and slide the seat
frame forward (as shown on page 8) until you can see the arm attachment screws (2b). Remove arm attachment screws with a torx T30 or #3 phillips screwdriver (or Allen wrench) (2c).
3. Slide the arms out. Note which hole the arm
screw was in. (Arms are shipped in the wide position).
Installation:
 Slide the new arm in and align the correct position hole. Tighten until fully seated using a torx T30 screwdriver (or Allen wrench). Repeat for the opposite side. Slide the seat frame back and re-install both seat slide stop blocks and the T20 torx screws as shown on page 8. Make sure not to strip the screws (hand tighten).
A. When arms are not in use, a plug may be
inserted as a decorative effect (lightly tap).
DECORATIVE PLUG
Page 13
4
5
6
SCRAP
STEEL
ACETAL
STEEL
STEEL
STEEL
ACETAL
SCRAP
Bin for Components Removed
Steel ScrapAcetal
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Page 14
7
8
9
ACETAL
ABS
ACETAL
NYLON
ACETAL
STEEL
Bin for Components Removed
Steel ABSNylonAcetal
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Page 15
Bin for Components Removed
Steel ZINC SCRAPNylonAcetal
11
STEEL
STEEL
ACETAL
10
ZINC
STEEL
NYLON
STEEL
SCRAP
SCRAP
SCRAP
STEEL
NYLON
STEEL
NYLON
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ACETAL
Page 16
1
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Replacement of the Arm Cap 
1. Install six (6) screws, with a torx T20
screwdriver (or Allen wrench), to secure the arm cap.  Reverse to remove.
Page 17
2 3
5
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939546506 Rev E
Removal & Installation of the Mechanism
1. See page 11 for removal of seat, page 10 for removal
of back frame and page 12 for removal of arms.
2. Snap cable attachment clip out of the swing cam
bracket by pushing outward on cable attachment clip.
3. Remove cable from attachment post.
4. Pry other end of cable up from attachment bracket
with a flat bladed screwdriver (4a) and remove cable from pneumatic cylinder adjustment bracket (4b).
5. Remove black slides from mechanism.
6. See page 19 for removal of cylinder from chair
control mechanism.
Reverse to install.
SWING CAM
BRACKET
CABLE
ATTACHMENT CLIP
ATTACHMENT POST
CABLE
4a
4b
PNEUMATIC CYLINDER ADJUSTMENT BRACKET
ATTACHMENT
BRACKET
PNEUMATIC
CYLINDER
ADJUSTMENT
BRACKET
Top View of Cylinder
On installation, align cylinder with center of chair control as shown before seating on cylinder.
CABLE
ATTACHMENT
BRACKET
CABLE
Page 18
BASE
CASTER
1
2
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939546506 Rev E
Removal of the Base
1. Use hands to pull all five (5) casters
from the base.
2. Use a hammer to remove the base
from the cylinder by pushing with hand downward on base and hitting the bottom of the cylinder with a hammer.
Installation of the base
Snap casters onto base by hand then place cylinder into base and sit in chair to seat cylinder on base.
Page 19
1b
1a
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939546506 Rev E
Removal & Installation
of the Cylinder
If the chair control is operational but the
pneumatic cylinder isn't then use this method:
1. Place pipe wrench as close to chair control
as possible and twist cylinder back and forth
(1a) while lifting on the cylinder (1b).
Reminder: The pipe wrench will render the
cylinder inoperable.
If pneumatic cylinder does not separate from
the chair control, apply WD-40 where cylinder
is embedded into the chair control. Wait
approx. 20 minutes and repeat.
2a 2b
2c
On installation, align cylinder with center of chair control as shown before seating on cylinder.
PNEUMATIC
CYLINDER
ADJUSTMENT
BRACKET
Top View of Cylinder
CABLE
ATTACHMENT
BRACKET
CABLE
If the pneumatic cylinder is operational but the chair control isn't then use this method:
2. Install the pneumatic cylinder
removal tool (part number
879100100) on the top part of the lift, as close as possible to the control (2a & 2b). Apply lifting force to the cylinder, with one hand. With the hammer in the other hand, give the removal tool several solid hits, on the flat part (2c). 
Reminder: The removal tool will render the chair contol inoperable.
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