KI Matrix Guide

Assemble units as described herein only. To do otherwise
may result in instability. All screws, nuts and bolts must be
tightened securely and must be checked periodically after
assembly. Failure to assemble properly, or to secure parts
may result in assembly failure and personal injury.
Repair & Replacement Instructions
Matrix® Chair
Back Replacement - Chairs Manufactured Before July 5, 2005
February 2019
Tools Required
• Flat-Head Screwdriver
• Lubricant (Dish Soap)
• #32 Drill Bit if using
#12.0695.PLAS, #6-19 x 7/8”
Plastite self-tapping screws
• #2 Phillips Driver Bit
• Cordless Drill/Screwdriver
Matrix Back Removal &
Replacement
1. Place the Matrix chair upside down
with the seat portion resting on a
sturdy surface (table) (Figure 1).
2. Remove the existing Matrix back
by unscrewing the two attachment
screws located along the bottom
edge of the back (Figure 1).
3. Once screws are removed, pull
the Matrix back free from the back
support rods (Figure 2).
Note: If replacement Matrix back
has spring clips pre-installed in the
two holes located at the bottom of the
back, follow step 4 to remove spring
clips. If clips are not pre-installed in
the two holes located at the bottom of
the back, skip to page 2, step 6.
4. If spring clips must be removed,
place the Matrix back on a hard,
sturdy surface (table). The square
openings on the back should be
facing up as illustrated in Figure 3 &
Detail A.
5. Using a flat-head screwdriver, press
down on each spring clip raised
catch located inside the square
openings of the Matrix back and
pry the clips from the two holes at
the bottom of the back (Figure 3 &
Detail A).
Figure 1
attachment
screw
Matrix
back
Figure 2
back
support
rod
back
support
rod
Matrix
back
Figure
3
Matrix
back
Detail A
flat-head
screwdriver
spring clip
raised catch
snapped into
the square hole
spring clip
(removed)
Matrix
back flat-head
screwdriver

Assemble units as described herein only. To do otherwise
may result in instability. All screws, nuts and bolts must be
tightened securely and must be checked periodically after
assembly. Failure to assemble properly, or to secure parts
may result in assembly failure and personal injury.
1330 Bellevue Street • P.O. Box 8100 • Green Bay, WI 54308-8100 • Tel [phone] • www.ki.com
© 2019 Krueger International, Inc. All Rights Reserved • Code KI-RR-000015R1/KI/PDF/0219
Matrix®Chair - Back Replacement - Chairs Manufactured Before July 5, 2005
Repair & Replacement Instructions
Matrix Back Removal &
Replacement (cont.)
Note: Applying a small amount of
dish soap as lubricant to the two
frame back support rods prior to
Matrix back assembly, will allow the
plastic to slide easier.
6. Place the chair frame upright on the
floor, flex the Matrix back to help
align the holes in the back with the
back support rods, then slide the new
Matrix back onto the back support
rods until the bottom of the back
rests firmly against the wire frame
(Figure 4).
Note: Drilling the holes at the
correct angle & depth into the Matrix
back is critical. Angle the drill so the
hole goes directly down the center of
the plastic web. Drilling too close to
the front or back surface will result
in unwanted holes, or white stress
marks will appear during or after
the screws are inserted. KI does
not cover damage resulting from
incorrect assembly.
7. Place the Matrix chair upside down
with the seat portion resting on a
sturdy surface (table). Verify you
are using the correct screw
(12.0695.PLAS) for a #32 pilot
hole. With the Matrix back held
firmly against the wire frame,
drill one pilot hole at each side,
approximately 1/2” deep in the Matrix
back using the existing frame holes
as your guide. Make sure the pilot
holes do not break through the front
or rear surface of the back (Figure 5).
Note: Be careful not to strip the
threads in the Matrix back when
inserting the #6-19 x 7/8” Plastite
self-tapping screws.
Figure
4
Matrix
back
back
support
rod
back
suppor
t
rod
Figure 5
cordless
drill
#32
drill bit
Matrix
back
#6-19 x /”
Plastite
self-tapping
screw
7
8
8. Insert two #6-19 x 7/8” Plastite
self-tapping screws through the
holes in the frame and into the pilot
holes in the Matrix back, making
sure the screws do not break through
the front or rear surface of the back
and that there are no visible stress
marks associated with inserting the
screws (Figure 5).