Osaki OS4000 User manual

Instruction Manual OS-4000

Table of Contents
Thank you for purchasing the OS-4000 Massage Chair.
Before using your massage chair, please read the contents of this instruction
manual and refer to it when needed.
Luxury Features ................................................... 2
Safety Precautions .............................................. 3-4
Chair Components .............................................. 5-6
Chair Installation & Moving .................................. 7-11
Grounding Instructions ........................................ 12
Chair Specifications ............................................. 13
Controller Diagram ............................................... 14
Operation Guide ................................................... 15-21
Troubleshooting ................................................... 22
Warnings .............................................................. 23
1

Luxury Features
01
2
The operation of massage chair is controlled by a microcomputer that performs
various intelligent massage methods and combinations, like Kneading, Tapping,
Clapping, Shiatsu, Rolling, Vibration and Air Massage. All these methods massage
acupressure points accurately to effectively alleviate fatigue, promote metabolism
and improve blood circulation.
The chair is equipped with five sets of full body automatic programs and three sets
of localized automatic programs to thoroughly fulfill your various needs.
Various types of massage functions can be combined for customized massaging
programs, in addition to the precise point massage.
The combination of air pressure for the seat pad, shoulder, neck, arm and leg as well
as the calf and vibration functions can be set automatically for more effective
massage.
● Spring-styled massage that is specially structured for the back is designed
according to curve of the human body to provide a more effective massage.
● The massage rollers use an interlocking gear to provide in-depth massage to the
acupressure points on the back.
● Designed with double automatic adjustment, the chair’s backrest can be adjusted
from 115° to 160°, while the footrest, from 0° to 90° to suit you.
● Heating therapy in the lumbar.
● The timer function can be adjusted according to your desired duration of the
massage program.
● Liquid crystal display and glow-in-the-dark display for a user friendly operation
even in the dark.
●
Designed with power surge and pressure detector as well as automatic
temperature sensor and auto shutdown mechanism for safety.
● The operation is controlled by intelligent microprocessor for excellent
performance and consistent quality.

3
02
When using the massage chair, basic precautions should always be followed to
reduce the risk of electric shock, burns, fire or injury to persons. Please read the
following precautions before using the massage chair.
* Make sure the power plug is securely inserted into a proper electrical outlet to
reduce the risk of short-circuit and fire.
* Always unplug the massage chair from the electrical outlet immediately after
using and before cleaning.
* DO NOT use the massage chair in areas where the humidity is high such as a
sauna or steam room.
* DO NOT use the massage chair outdoors and avoid areas with direct sunlight.
* If the electricity is off, turn the power switch to the OFF position and unplug the
massage chair from the electrical outlet to prevent any damages to the chair
when the electricity comes back on.
* Never plug/unplug the power cord plug socket with wet hands.
* Close and continuous supervision is necessary when the massage chair is used
by, on or near children or disabled persons.
* No more than one person should use the massage chair at a time.
* The massage chair is intended for use as described in the Instruction Manual.
Do not use any attachments other than those recommended by the manufacturer.
* DO NOT attempt to stand or sit on the backrest, armrest or footrest in order to
prevent accident, injury or damage to the chair.
* Avoid falling asleep while using the massage chair.
* Always keep the massage chair clean, and never insert any objects into or
around the gaps of the massage chair.
* DO NOT move the massage chair by pulling on the power supply cord.
* Make sure there are no children, pets or other obstacles behind or underneath
the massage chair.
* If you find any rips or tears in the fabric of the massage chair contact the service
department.
Safety Precautions

4
* This massage chair is designed for household use and should not be used in
non-residential settings.
* Please consult your doctor if you are in doubt as to whether or not you should
use this massage chair.
* Please consult a doctor before using the massage chair if you are pregnant,
undergoing any medical treatment, using a medical electronic device such as a
pacemaker, or are experiencing any of the following: Malignant tumor, heart
disease, back pain, abnormal or curved back bone, osteoporosis or acute illness.
* If you experience pain while using the massage chair, stop using the chair
immediately and consult your doctor.
* Never use a massage function on swollen or inflamed parts of the body.
* DO NOT use the massage chair for more than 30 minutes at a time.
* DO NOT use the massage chair where aerosol (spray) products are being used
or where oxygen is being administered.
*
This massage chair is a non-professional product designed to provide a comfortable
massage and should not be substituted for appropriate medical treatment.
* Never operate the appliance with the air openings blocked. Keep the air openings
free of lint, hair, and the like.

5
03 Chair components
Wheel
Pillow Pad
Backrest
Backrest Pad Armrest
Controller
Seat Pad
Calvesrest
Legrest
Footrest
Armrest Air Bags
Shoulder Air Bags

6
Massaging Position
20 Air Bags
21 Air Bags
Heater
Vibration

7
Chair Installations
04
Step 3: Lift the backrest, then lower the
backrest into the seat brackets, securely
lock the flat head bolts into sides of the
seat.
Note: Carefully unwrap the armrest to
avoid scratching during installation.
1. When positioning the chair, please leave 80cm of space
behind the backrest to allow free reclining of the backrest.
2. Unplug from outlet when installing the Chair parts.
Step 1: Remove the following contents from two cartons:
1) The chair
2) The side boards
Step 2: Install the side boards.
1) Insert the side boards to the chair at 90 degrees.
2) Tighten the screws (4pcs, size: M6*55) securing the side boards.

8
Step 4: Attach the connecting rod and the u stay fork of the reclining actuator with
the flat head rivet, and secure with a split pin as demonstrated in PIC I and PIC 2.
A. Connecting rod (on the backrest)
B. U stay fork of reclining actuator (on the seat)
C. Flat head rivet
D. Split pin
Step 5: Connect the plugs to the corresponding place in the seat according to the
marks given.
Note: Insert black to black and gray to gray, otherwise damage to the chair may
result.
A
C
D
B
PIC 1
A
CB
PIC 2

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Step 6: Unfold the backrest until you hear it click into place.
Step 7: Attach the backrest pad and the pillow pad.
A) Attach the backrest pad with the zipper.
B) Attach the pillow pad using the hook and loop fasteners.
Step 8: Connect the wire plugs.

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Step 9: Fix the remote controller to the holder by securing the screws.
The back massage strength-control pad has been inserted
into the backseat cover.
If strong massage is desired, remove the back massage
strength-control pad from the cover; this strengthens the
massage. If mildermassage are desired, insert the back
massage strength-control pad into the cover; this lessens
the strength of the massage.

11
Moving the Chair
1. Lift up the Calves Rest.
2. Then recline the chair to approximately to 45 degrees, so that you can easily move
the chair around the house with a slight pull push.
Caution:
1) Before you move the chair, please put the footrest back into the original position first.
Otherwise, injuries might occur in the process of moving.
2) Avoid moving the massage chair when there is someone seated on it.
3) Placing a mat underneath the massage chair is advisable, as the moving process
might leave scratches on the floor surface.

12
Grounding Instructions
05
Fully insert the plug into an appropriate outlet.
An improper equipment-grounding conductor may result in electric shock. Contact a
qualified electrician if you are not sure that the product is properly grounded. Do not
modify the plug that is included with the massage chair. If the plug does not fit the
outlet, contact a qualified electrician to install an outlet to fit the massage chair plug.

13
Chair Specifications
06
Model No.
Rated Voltage
Rated Frequency
Rated Power Consumption
Timer
Max Time Rate
Length of Wire
Usage Condition
Storage Condition
Safety feature
Using benefits
Description Specifications
OS-4000
120V AC
60HZ
250W
5/10/15/25/30 minutes
60 minutes
Product carton: 52.4” X 30.3” X 37.2”
Side panel carton: 37.8” X 25.6” X 15”
Product gross weight: 284.4 lbs
Product net weight: 244.8 lbs
Controller wire: 1.3m
Power supply wire: 2.2m
Environment temperature: 10°-40°
Contrasting humidity level: 30-85RH
Storage temperature: 20°-60°
Storage humidity level: 30-85RH
Equipped with overheated and power surge
safety protection
Increasing blood circulation
Relieving muscular fatigue
Dimensions(LxWxH)
Weight

14
07 Controller Diagram
A.
Full Body Auto
Programme
B.
Localised Auto
Programme
37
38
39 40
41
43 42

15
08 Operation Guide
Connect to the power supply, and turn the switch to “I” position. The chair is now in idle
mode. During idle mode, there are only seven funtions: ON/OFF, Foot Extend, Pause,
Recline, Sit Up, Lift Leg or Recline Leg that can be operated.
CONTROL BUTTONS FOR THE MASSAGE CHAIR
1. ON/OFF
The Start/Stop Control Button
Press once on this button and the backlight of the Remote Control will start blinking: the
chair is in idle mode. Press any massage function button to begin massage functions on
the chair. This will also start the Timer.
Press this button again to stop all massage functions, the massage rollers will return to
its original position.
2/3. Recline/Sit Up
Angle Adjustment Control Button for Massage Chair
These two control buttons can adjust the Reclining and Sit Up angle respectively.
Press once on the Reclining or Sit Up control button to adjust the Backrest and Footrest
to a comfortable position. Press any of the control button again to adjust for Reclining,
Sit Up, Lift Leg or Recline Leg, to confirm the position.
4/5. Lift Leg/Recline Leg
Angle Adjustment Control Button for Calves
These two control buttons can adjust massage angle on the Legrest.
Press once on the Lift Leg or Recline Leg control button, and the Legrest will adjust itself
to a comfortable position. Press any of the control buttons again for Reclining, Sit Up, Lift
Leg or Recline Leg to confirm the position.
Note: The adjustment angle functions will be activated by sustained pressing of the
button for 2 seconds.
6/7. Length Adjustment Control Button for Legrest
These two control buttons can adjust the length on the legrest.
Press the button once to adjust the legrest to a comfortable length. Press the button
again to confirm the length.

16
8. Length Auto Adjustment Control Button
It’s equipped with an Auto Function that length of footrest can be adjusted according to
the user’s leg length for a more effective massage. Every time the button is pressed, the
auto function will detect the best massage length.
9. Backrest Scan
Auto Scan Control Button
Press this button to activate the automatic scan that will position the massage rollers
according to the user’s height. When the massage rollers are positioned, a beep alerts
the user that the manual backrest Up/Down adjustment buttons may be pressed within
five seconds to further adjust the massage rollers.
Note: User should sit with shoulders flat against the back of chair for an accurate scan.
10/11. ▲/▼
Manual Backrest Up/Down Control Buttons
Press these buttons to manually adjust the massage rollers.
12. Timer
The Timer’s Time Interval
After the masage process is activated, the chair will be automatically set on a 15-minute
Timer. Subsequently, every time the “TIMER” button is pressed, the Timer’s interval will
be changed in the sequence of “20>25>30>5>10>15” minutes.
When there is only 1 minute remaining in the set time, the Backlight of the Remote
Control will light up automatically, followed by 5 beeps to alert the user.
13. The Pause Button
When the chair is in massage mode and the user wants to temporarily pause it, press
the Pause button and all massage functions will stop. The “Pause” icon will be blinking
on the Liquid Crystal Display and the set time countdown will be paused as well. The
chair is now in idle mode. Only the “Pause, Sit Up, Lift Leg, Recline Leg” can be used.
Press the Pause button again to immediately cease the “Pause” function and resume the
original massage function. The countdown continues.
14. Zero-G
Press this button to active the Zero-G function. Press the button again to stop the Zero-G
massage function.

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A. Full Body Auto Programme
If one of the five Auto Programmes is activated before theAuto Scan of the entire body,
the machine will automatically do a height scan for the back. At the same time the user
can manually adjust the massage height to the prefered level.
The following are the Auto Programmes available:
15. Healthcare
16. Relax
17. Smart
18. Circulation
19. Demo
Press this button for a brief demonstration of the features of the Massage Chair.
B. Localised Auto Programme
This programme gives precise massage at the exact part of the body for better
localized-massage effect.
20. Neck/Shoulder
Neck/Shoulder Auto Programme Start/Stop Control Button.
21. Back/Lumbar
Back/Lumbar Auto Programme Start/Stop Control Button.
22. Full Air
Auto Air Squeeze Control Button
Press this button once to activate the seat, lumbar, back, shoulder, neck, calves and feet
auto air squeeze function.
Press this button again to stop the auto air squeeze function.
Note: Press the Intensity button to adjust the intensity while the auto air squeeze function
is activated.
Setting Lumbar Heating
23. Heat
Heating Function Start/Stop Control Button
Press this button once to activate the heating function for the lumbar.
Press this button again to stop the heating function.

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24. Tapping
Tapping funtion Start/Stop Control Button- 3 sizes of width, 5 levels of speed to be
adjusted.
Press this button once to active the tapping function for a full back massage at medium
speed. Press the button again to stop the tapping massage function.
25. Clapping
Clapping function Start/Stop Control Button- 3 sizes of width, 5 levels of speed to be
adjusted.
Press this button once to active the clapping function for a full back massage at medium
speed. Press the button again to stop the clapping massage function.
26. Shiatsu
Shiatsu function Start/Stop Control Button- 3 sizes of width, 5 levels of speed to be
adjusted.
Press this button once to active the shiatse function for a full back massage at medium
intensity. Press the button again, to stop the shiatsu massage function.
27. Rolling
Rolling function Start/Stop Control Button- 3 sizes of width.
Press this button once and it will activate the Rolling function for full back massage.
Press again to stop the function.
This function cannot be used to perform “Spot” massage.
28. Swedish
Swedish function Start/Stop Control Button- 5 levels of speed to be adjusted.
Press this button once and it will activate the Swedish function for full back massage.
Press again to stop the function.
29. Speed
The Speed Adjustment button for Tapping, Clapping, Swedish and Shiatsu mode.
After activating the Tapping, Clapping, Swedish or Shiatsu function, every time the
button is pressed, the strength can be adjusted in the cycle.

19
30. Width
The Width Adjustment button for Tapping, Clapping, Shiatsu, Rolling mode.
After activating the Tapping, Clapping, Shiatsu or Rolling function, every time the button
is pressed, the width can be adjusted in the cycle.
31. Kneading
Kneading function Start/Stop Control Button- 5 strength levels to be adjusted
Press once on “Kneading” to activate full back-massage of Kneading mode, press again
to stop the Kneading function.
This function can be combined with Tapping/Clapping/Shiatsu to enjoy Kneading +
Tapping, Kneading + Clapping, Kneading + Shiatsu multi massage functions.
32. Strength
The Adjustment Button for Kneading Speed
After activating the Kneading function, every time the button is pressed, the speed can
be adjusted in the cycle.
Setting Spot or Localised Back Massage
33. Spot
The Spot or Localised Back massage
This button allows user to select Spot massage for any part on the back. Press this
button once to activate spot massage while the original massage mode continues to run
at the original position. Press again to cease Spot massage function and resume full
back massage function.
34. Partial
The Partial Back Massage
This button allows user to select Partial Massage for any part of the back. The position
for Partial Massage can be adjusted for a user friendly method of Localised Massage.
Press this button once to continue the original massage mode, while activating Partial
Massage, which takes the original position as the centre to perform Partial Massage with
the width of approx. 8cm. Press again to stop Partial Massage function and resume full
back massage function.