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H

M6 x 20mm Screw

4 pcs.

G

8 x 15mm Washers

6 pcs.

L

Back Height

Adjustment

1 pc.

A

Casters

5 pcs.

B

Base

C

Gas Lift

1 pc.

D

Telescopic

Bellows

J

Back Depth

Adjustment

1 pc.

(Note longer stem)

F

Seat Mechanism

I

J-Bar

K

Chair Back

E

Chair Seat

Assembly Instructions

Tools Needed: Phillips Head Screwdriver

Please read all instructions before assembly.
Step 1: Insert Casters (A) into Base (B).
If you are assembling a model with a DK Foot Ring please proceed to 

subsequent pages for drafting kit assembly instructions.
Step 2: Insert Gas Lift (C) into Base (B).
Step 3: Cover Gas Lift (C) with 3 piece Telescopic Bellows (D).
Step 4: Place Chair Seat (E) on a level, non-abrasive surface and align 

             pre-drilled holes in Seat Mechanism (F), with holes in Chair Seat.
Step 5: Place four Washers (G) onto four M6 x 20mm Screws (H)

             and insert through the holes in the Seat Mechanism (F),

             and into the Chair Seat (E). Tighten with screwdriver.
If you are assembling a model with optional Adjustable Arms please 

proceed to subsequent pages for armrest assembly instructions.
Step 6: Carefully place Chair Seat (E) with attached Seat Mechanism (F) 

             onto the Gas Lift (C), aligning the hole in the Seat Mechanism 

             with the Gas Lift. Press down on Chair Seat to secure onto Base.
Step 7: Slide J-Bar ( I ) (end with pre-drilled hole), under

             Chair Seat (E) and into the slot on Seat Mechanism (F).
Step 8: Place Washer (G) on threaded end of Back Depth Adjustment (J), 

             and insert into slot on Seat Mechanism (F), and into pre-drilled 

             hole in J-Bar ( I ), hand tighten to hold in place.
Step 9: Slide receptacle, attached to Chair Back (K) over open

             end of J-Bar ( I ).
Step 10: Place Washer (G) on threaded end of  Back Height Adjustment (L), 

              and screw into Chair Back receptacle, tighten to hold in place. 
Step 11: Carefully sit on chair to make sure the Gas Lift (C)

              is properly inserted into the Base (B).
Step 12: Operate the Gas Lift Lever on the Seat Mechanism (F),

              to be sure unit is working properly.

STOP

STOP

STOP

919-362-4765 (fax)
www.ofminc.com

161 Tradition Trail  Holly Springs, NC, 27540
800-520-7471 (voice)
919- 303-6389 (voice)
[email protected]

G

G

Assembly Notes: 

During assembly, hand tighten screw only when all screws 

are in place, you may then tighten all screws completely.

CAUTION:

1. Do not use this chair as a step ladder.

2. Check for loose screws and tighten them every 6 months.

Models 105 / 105-AA / 105-DK / 105-AA-DK

  

“Superchair” Task Chair & Stool

WEIGHT CAPACITY: 250 lbs.

Parts Listing

03.24.2010

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