Okamura Choral User manual

G1A740
2018-05
INTERNATIONALSALES&MARKETINGDIVISION
2-14-27,Akasaka,Minato-ku,Tokyo107-0052,JAPAN
Tel:[phone]Fax:[phone]
http:
//
www . okamura.jp
/
OKAMURACORPORATION
Instructions for Use
Office Seating

1 2
Caution
Safety Instruction (Keep this operation manual)
Gas lift
Hard casterSoft caster
Symbol indications
Various symbol marks are used in this instruction manual and displayed on the products to show correct
and safe usage and to avoid harm to you and others or damage to property. Please understand those before
reading the main text of this manual.
Caution
User must follow this instruction to prevent from accidents and injuries, or
damages to their property.
 Do not handle roughly, or use improperly.
Do not use as a carrier.
 Do not disassemble or repair on your own. Please contact
our official dealers when needed.
 No remodeling. Okamura will have no responsibility for any
disadvantage caused by remodeling.
 Gas lift replacement and handling should only be carried out
by the trained personnel.
 Be careful not to put fingers, hands or clothes caught in gaps
between moving parts or under armpad when adjusting the
armrest position.
 Casters
For hard floors made of ceramic, stone, tile or wood, use soft
casters.
For soft floors using carpet or rug, use hard casters.
 Adjustable arm
Be careful not to get your fingers, hand or clothes caught in the
gaps between the moving parts or the back of the pad when
adjusting the position of the arm. Also, make sure that the arms
are fixed tightly before use.
Do not stand on the chair or sit on the front side of
seat or armrest.

3 4
Installation
For maintenance
When placing alongside windows, use curtain or blind to avoid from
direct sunlight.
Please follow instructions below. Failure may cause serious damage to the product.
 Regular maintenance is tips for long-life use.
 If found unstable due to loose bolts and screws, tighten them.
 For daily care, use a well-wrung soft cloth.
 For stained part, use neutral detergent (1-3%) and completely remove
detergent with dry soft cloth.
 For mesh and cushion parts, remove dust by tapping the cloth surface
with brush or using vacuum cleaner.
 Cushion part cannot be dry-cleaned so that replacing is recommended if
exceptionally dirty.
Indoor use only.
Avoid direct sunlight.
No outdoor or waterfront use.
Avoid high temperature, high humidity, or extraordinary aridity.
Do not place product under heater or air-conditioner exhausting high
temperature air.
Do not place on uneven floor.

65
Part names Adjustable range
Headrest (option)
Backrest
Hanger (option)
Adjustable arm
(option)
Reclining lock/release lever
A
rm height
adjustment button
Lumbar support
adjustment tab
Backrest frame
Reclining tension
adjustment lever
Seat slide lever
Seat
Leg
Lumbar support
(option)
Gas lift
Caster
Seat height
adjustment lever
mm (inch)
100mm
(4”)
120mm
(4 3/4”)
23°
35°
100mm
(4”)
70mm
70mm
(2 3/4”)
(2 3/4”)
50mm
(2”)
110mm
(4 3/8”)

7 8
Operation guide
50mm
(2”)
Seat height adjustment
Adjust the seat height using the seat height adjustment
lever on the bottom right of the seat. The seat will be
lowered if you lift the lever while seated, and it will stop
at any position you release the lever at. The seat will be
raised if you lift the lever while not seated on the seat.
110mm
(4 3/8”)
mm (inch)
Seat depth adjustment
Adjust the seat depth by sliding the seat forward or
back within a range of 50 mm (2”) using the seat
slide lever on the bottom left of the seat. This allows
for maintaining an appropriate distance between
the back and the front edge of the seat, reducing
pressure on the back of the knees and providing
reliable support for the lower back.
mm (inch)