D
B
A
K
Check all parts against Parts List before beginning assembly.
Allow all parts to warm to room temperature prior to assembly.
Locate the HIGHER set of mounting holes on the side of the legs
of the (A) Base. From the bottom, slide a (B) Lower Footrest (with
the curved front facing out) up between those legs until the holes
in the footrest line up with those in the legs. Place a (C) Footrest
Nut inside the footrest,
with the cupped side matching the curve
of the footrest end.
Insert a (D) Flat Washer on to (E) Hex Bolt
through the hole in the base leg and the footrest, and thread it into
the footrest nut. Attach the other end of the footrest the same
way. Now tighten bolts alernately with a wrench, until both sides
are evenly tight. Do not overtighten.
Mount the second (B) Lower Footrest into the LOWER set of
mounting holes on the legs, using the same procedure as before.
Install a (F) Glide onto each of the legs of the base. The glides
should fit snugly, so place a glide under a leg and tap the leg into
it with a rubber mallet. Be sure the leg is inserted completely into
the glide for proper stability. (HINT: Glides are easier to install if
they are slightly expanded. Use a blow dryer or warm water,
drying thoroughly, to expand glides.)
Position the (G) Upper Footrest over the holes on the tops of two
of the base legs. Insert a (H) Carriage Bolt (Black) through each of
the footrest holes and through the legs. Add (D) Flat Washer and
fasten with (I) Locking Nuts on the underside of the legs; tighten
alternately with a wrench, until both sides are evenly tight. Do not
overtighten.
The (J) Tapered Bushing should come preassembled on (K)
Wavetube (contact Ergo if it is not). Spread the tapered bushing
slightly (it has a split side) and slide to about halfway down
wavetube. Insert the wavetube assembly, wave surface first, into
the central hub of the base; slide it down until the tapered bushing
pops inside the hub and nests securely.
Install the (L) Seat Assembly by aligning the hole on the underside
with the shaft of the wavetube assembly; push down firmly on seat.
Insert the stem of the (M) Back Assembly into the slot at the back
of the seat. Use a screwdriver to depress the push button at the
bottom of the stem and slide until the stem goes all the way
through the slot and sticks out the other side about 2". It may be
necessary to rotate the lever at the back of seat assembly
clockwise so stem will slide all the way through the slot. Rotate
the lever counterclockwise to lock the stem.
Make the final chair adjustments following the instructions on the
reverse side.
F
C
G
J
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Registered U.S. Patents 5,836,555; D381,823
TOOLS REQUIRED:
1/2" CRESCENT OR SOCKET WRENCH; SCREWDRIVER; RUBBER MALLET
TASK MASTER
®
INDUSTRIAL CHAIR
(17” - 35” Range)
A S
A S
A S
A S
A S S E M B L
S E M B L
S E M B L
S E M B L
S E M B L Y
Y
Y
Y
Y
I N S T R U C T I O N S
I N S T R U C T I O N S
I N S T R U C T I O N S
I N S T R U C T I O N S
I N S T R U C T I O N S
Visit us on the web:
www.ergoindemand.com
5120
Base
1
5101-04
Lower Footrest
2
5101-06
Footrest Nut
4
5101-24
Flat Washer
6
5147-31
Hex Bolt
4
5101-23
Glide
5
5101-25
Upper Footrest
1
5118-06
Carriage Bolt (Black)
2
5118-23
Locking Nut
2
5118-24
Tapered Bushing (on K) 1
5101-05
Wavetube Assembly
1
5101-11
Seat Assembly
1
5113-01BL
Back Assembly
1
5113-02BL
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B
C
D
E
F
G
H
I
J
K
L
M
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PART NO.
P A R T S L I S T
P A R T S L I S T
P A R T S L I S T
P A R T S L I S T
P A R T S L I S T
CODE
DESCRIPTION
QTY.
5120-37MP: 1 of 6;
Rev. 4: 11/06 (8004.04)
For questions or concerns, please call
Ergo In Demand at
1-800-888-6024
available Monday-Friday 8:00 AM to 4:30 PM (Central Time) (English-speaking operators)
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4900 Industry Drive
Central Point, OR 97502
