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Please read the

 Safety Instructions 

below carefully.

User Manual

1. One chair can only bear one person's weight, don't let the children who under 5-year-old sit 

alone in the chair

2. Please put the chair on a flat floor. 

3. Please don't sit on the armrest, stand on the chair or use it as a ladder or footsteps in case 

they cause some danger

4. Don’t use chemical cleaners to clean the chair, but also to avoid contact with acid, alkali and 

other corrosive liquids

5. Don’t use sharp or hooked objects to scrape the chair and do not get it close to the fire

6. To avoid any harm to your fingers, don't insert your finger into the mechanism while sitting

adjustment components

7. To prevent fall off the chair, please control your gravity when you tilt the swivel chair;

8. Please note that only trained personnel can replace or repair the gas lift.

9. To avoid scraping, do not use the chair on the wooden floor directly.

10. The office chair using environment is home and office.

Assemble Introduction

 (The size will be according to regular measurements)

Put the caster into the base by 

pressing.

1

Insert the gas lift to the base.

2

Fix the armrest to the seat cushion 

with 6pcs (M6*40) screws and 

small washers.

3

7

Fix the headrest to the backrest 

with 2pcs (M6*20) screws and 

cover the headrest decorative 

piece, then the chair is assembled.

Accessories list  

(The actual size shall prevail;  Screws, shims and spring washers 

all have one extra for spare)

0

1

2

3

4

5

6

7

8

9

10

cm

Notice: Before installation, please classify the screw and measure screw length to facilitate installation

Armrest Screws / Mechanism Screws (M6*40): 10+1pcs

Backrest Screws(M8*45): 3+1pcs

Fix the mechanism to the seat 

cushion with 4pcs (M6*40) screws 

and big washers.

Fix the backrest to the seat cushion 

with 3pcs (M8*45) screws, spring 

washers and big washers.

Put the mechanism into the gas 

lift.

4

5

6

Functions 

(The size will be according to regular measurements)

Caster: 5pcs

Chair Foot: 1pc

Mechanism: 1pc

Armrest: 1 pair

Seat Cushion: 1pc

Backrest: 1pc

Headrest: 1pc

Small Washers: 7pcs

Spring Washers: 3+1pcs

Gas Lift: 1pc

Big Washers: 8pcs

Headrest Decorative Piece: 1pc

Hexagon Wrench

1pc

Headrest Screws(M6*20): 2+1pcs

Front

Front

Press to adjust lifting,

pull out to adjust tilting,

Push in to lock the tilting position,

three tilting positions and 

angles for options

Backrest tilt tension 

adjustment

Lumbar support height 

adjustment

Armrests height 

adjustment

Headrest height 

adjustment

Contact us:

[email protected]

Summary of Contents for M80C

Page 1: ...and will always be here if you also need us PRODUCT INSTALLATION GUIDE I U m 64 5 69 117 5 130 5 CM Model M80C Hello Friend Thank you for choosing Umi office chair We are so pleased to make companions...

Page 2: ...est to the seat cushion with 6pcs M6 40 screws and small washers 3 7 Fix the headrest to the backrest with 2pcs M6 20 screws and cover the headrest decorative piece then the chair is assembled Accesso...

Page 3: ...n mit 3 St ck M8 45 Schrauben Federringen und gro en Unterlegscheiben 5 Stellen Sie den Mechanismus in den Gasheber 6 Setzen Sie die Rolle in die Basis ein indem Sie dr cken Setzen Sie den Gaslift in...

Page 4: ...ussin de si ge avec vis 3pcs M8 45 rondelles grower et grandes rondelles 5 Mettez le m canisme dans l ascenseur gaz 6 Placez la roulette dans la base en appuyant sur 1 Ins rez l ascenseur gaz la base...

Page 5: ...di 5 Inserire il meccanismo nel sollevatore a gas 6 Metti la ruota nella base premendo 1 Inserire l ascensore di gas alla base 2 Fissare il bracciolo al cuscino del sedile con 6 viti M6 40 e piccole r...

Page 6: ...6 Ponga la rueda en la base presionando 1 Inserte el elevador de gas a la base 2 Fije el reposabrazos al coj n del asiento con tornillos 6pcs M6 40 y arandelas peque as 3 7 Fijar el reposacabezas al r...

Page 7: ...1 2 3 4 5 6 7 8 9 10 M6 40 4 3 M8 45 5 6 1 2 M6 40 3 7 2 M6 20 Front Front 0 1 2 3 4 5 6 7 8 9 10 cm M6 40 10 1 M8 45 3 1 5 1 1 1 1 1 7 3 1 8 1 1 M6 20 2 1 3 Umiexport010 outlook com...

Page 8: ...oben oder unten Tipp Beim Zur cklehnen muss Ihr Nacken durch die Nackenst tze komfortabel abgest tzt werden 7 Armlehnen Armsupports 9 5 CM Die Armsupports sind werkzeuglos h henverstellbar Dazu den Be...

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