Human Touch HT-120 Operating instructions

REMOVING THE BACKREST
1. Locate the connector box on the bottom right-hand side of the chair, use a Phillips-head screwdriver to remove the two screws that secure the connector
box cover, remove the cover, then disconnect both connectors (Fig.3).
2. Using a nail clippers, or other suitable instrument, cut and remove all zip ties that secure the two backrest connectors and cables to the bottom of the
chair, being careful not to cut the wire casing.
Tools Required: Pliers, vice grip, Phillips-head screwdriver, small hammer, nail clipper or other instrument suitable for cutting zip ties, new zip ties
NOTE: This procedure can be completed by one person, although having a second person is helpful when
installing the new backrest. SAVE ALL PARTS FOR USE DURING REASSEMBLY.
1. Remove the head pillow and backrest pad (see Use & Care manual for more information).
2. Push down on the backrest release lever, then fold the backrest forward onto the chair seat (Fig.1).
3. Power off the chair and unplug it.
GET READY
Backrest release lever
Connector box
(Left-hand side of the chair)
REPLACING THE BACKREST
HT-120/121
(Fig.1)
(Fig.2)
1
Connector box
(Right-hand side of the chair)
(Fig.3)
It is imperative that Human Touch® products are repaired in a manner that ensures product safety and regulatory compliance and that is fully consistent with the practices used
during the manufacturing process. Therefore, Human Touch requires that all product repairs are performed using only factory-new parts and in accordance with these repair
instructions. Failure to adhere to these instructions voids the product warranty and releases Human Touch from all liability for injury or product damage resulting from the repair.
SERVICE LEVEL: 3
Aug 22, 2010

3. Pull gently outward on the bottom of one of the side panels to remove it (Fig.4).
4. Use a needle-nosed pliers to remove the cotter pin from the side panel, then use a vice grip to pry the hinge pin loose from the side panel and remove it (Fig.5).
NOTE: When the hinge pin is removed, the two spacers that are located between the backrest and the chair base will most likely fall off Fig.6). Be sure to set
these spacers aside for use during reassembly.
5. Repeat steps 6 and 7 on the other side panel.
6. Carefully lift the backrest up and off the chair base.
Cotter pin
Hinge pin
(Fig.5)
Backrest
spacers
(Fig.6) 2
(Fig.4)

INSTALLING THE NEW BACKREST
1. Place the new backrest into position, face-down on the chair base.
2. From the outside of one of the side panels, insert the hinge pin through the hole, just until it is visible on the inside of the side panel.
3. Place the two spacers into position on the inside of the side panel, with the smaller spacer between the larger spacer and the side panel, then push the
hinge pin through both spacers (Fig.7).
4. Use your fingers to line up the bracket in the side of the backrest and the hinge pin; you will need to pull up slightly on the lower part of the backrest to
properly align the hinge pin with the bracket. (NOTE: Use your fingers to locate the circular bracket in the side of the backrest before attempting to
insert the hinge pin into the backrest. You can easily locate the hole by pushing firmly inward on the side of the backrest until you feel the metal bracket
beneath the upholstery.)
5. Insert the hinge pin as far into the bracket as possible, then use a small hammer to install it completely into the bracket.
6. Insert the cotter pin into the hinge pin, then use a needle-nosed pliers to bend the ends back.
7. Replace the side panel by aligning the plugs on the inside of the cover with the corresponding holes on the chair, then pushing the cover firmly
into place (Fig.8).
Hinge pin
Side panel
Smaller spacer
Larger spacer
Backrest
(Fig.7) (Fig.8)
3

8. Repeat steps 2 - 7 on the other side panel.
9. Reconnect the cables at the connector box on the bottom right-hand side of the chair (Fig.9).
10. Using a Phillips-head screwdriver, secure the connector box cover using the two screws you removed earlier.
11. Reconnect the cables at the connector box on the bottom left-hand side of the chair (Fig.10).
12. Using your fingers, secure the connector box cover.
13. Replace the zip ties you removed previously, to secure the connector boxes and cables to the bottom of the chair.
14. Reinstall the chair pads (See the Use & Care manual for instructions).
15. Plug in and power on the chair, then verify that both the massage and recline functions work.
(Fig.9) (Fig.10)
4
Please send any questions or comments regarding these instructions to: [email protected]
© 2010 Human Touch™, LLC.
Connector box
(Right-hand side of the chair)
Cables
Connector box
(Left-hand side of the chair)
Cables