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Cushion Assembly Replacement, continued
(also applies to Upright, Back Shells and Seat Shell replacement)
12.
Remove Synchro Pivot Pins on either side of chair control
by removing retaining clip on inside ends of pivot pins, then
using screw driver or punch and mallet remove and discard
old synchro pivot bearings.
13.
Remove chair control, column, base assembly from top
plate/stretcher assy.
14.
Remove 2 seat attachment screws from rear plate assembly.
15.
Remove top plate/stretcher assembly from upholstered seat
assembly by sliding out of pockets in inner seat and
rotating out of outer shell.
16.
Remove outer seat shell by removing attachment screws.
17.
Install outer seat shell with its attaching screws to new
upholstered seat assy.
18.
Install top plate/stretcher assembly into new upholstered seat
assembly by sliding flanges fully into molded pockets
and installing seat screws. Install new synchro bearings from
inside the top plate/stretcher
19.
Install chair control/column/base assy. by inserting front flange
of chair control housing into the plastic bumper/slide
bearing at front of top plate stretcher assy. Install the synchro
Pivot Pins on both side of chair control using small
hammer or mallet. Install retaining clips on inside ends of
synchro pivot pins.
20.
Install the upright and back assembly by tapping the upright
bracket into the upright receptacle until holes are aligned.
Install the upright screws. IMPORTANT-SET TORQUE OF
SCREWS TO 240-300 IN-LBS.
21.
Re-install arms if chair has arms. See instructions on page 5.
Stretcher
Assembly
Seat
Retaining Clip
Synchro
Pivot Bearing
Synchro
Pivot Pin
Seat
Attachment
Screw
Outer
Seat
Shell
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939504598 Rev H
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