Manuals / Sunrise Medical / Personal Care / Mobility Aid

Sunrise Medical S-646 instruction manual Headrest, Foam Back, Seat Tilt Adjustments

Models: S-646

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a)To adjust the height, angle, or width of the lateral thoracic support pads, loosen the top bolts and slide to correct width. Tighten bolt to bolt plate. If more adjustment is neces- sary, loosen the internally mounted bolts, and slide in the track to the desired height and width. The angle is obtained by tilting the bracket as needed. Tighten the bolts.

b)To adjust the depth of the lateral thoracic pads, turn the middle bracket so that the slots are on side. Adjust to desired depth. Re- tighten the bolts.

C.HEADREST

1. Mounting a headrest.

The Solid Seat Back has a universal headrest plate mounted to it. Care should be taken to use the proper screw length when mounting.

2.Adjusting the height of the headrest.

a)Loosen the hand lever handle (A).

b)Raise or lower the headrest to the desired height.

c)Tighten the hand lever handle (A).

3.Adjusting the position of the headrest mount.

a)Use the 3/16" Allen wrench to loosen the three

(3)socket head cap screws on the upper pivot bracket (B).

b)Adjust the headrest position.

NOTE– Angle, front-to-back distance and left-to-right position are adjustable in this step.

c)Use the 3/16" Allen wrench to tighten the three

(3)socket head cap screws on the upper pivot bracket (B).

4.Adjusting the position of the headrest pad.

a)Use the 5/32" Allen wrench to loosen the three

(3)socket head cap screws at the base of the headrest (C).

b)Adjust the headrest to the desired position. Note: Ball and socket can be moved for rotational

headrest adjustment in this step.

c)Use the 5/32" Allen wrench to tighten the three

(3)socket head cap screws at the base of the headrest (C).

A

B

C

D. FOAM BACK

Secure the foam and cover to the shell.

To secure the back foam and cover on the Solid Seat Back, slide the top edge of the cover over the top lip of the shell. Press the back in place against the shell.

E.SEAT TILT ADJUSTMENTS

1. Initial Tilt Angle

The upright angle can be adjusted to suit the rider.

a)Operate the tilt system until the seat is tilted about 30°.

b)Adjust the stop pin (A) to the desired posi- tions. The stop pin lock-nuts (B) determine the resting position of the seat. When coming to a rest, the seat should contact both pins simulta- neously.

c)Tighten the stop pin lock-nuts.

d)Raise the seat up once again.

e)Remove the access cover on the actuator hous- ing (C).

f)Position the most rearward limit switch (D) such that the actuator shuts down when the seat contacts the stop pins (A).

NOTE– Do not loosen the screw any more than is nec- essary to slide the limit switch in its track. If the screw is over loosened, it may come out and be difficult to replace.

NOTE– The limit switch adjustment should not allow the motor to stall as the seat frame contacts the stop pins.

2. Drive Lock-out Angle

The drive lock-out angle is adjustable

a)Tilt the seat back at least 30°.

b)Remove the access cover on the actuator.

c)Adjust the middle limit switch (E) until the desired lock-out position is achieved.

d)Replace the access cover on the actuator hous- ing (C).

NOTE– The drive lock-out should be set such that the chair cannot be driven with the seat tilted to an angle of greater than 15°.

A

B

C

E

D

930576 Rev. A

930576 Rev. A

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Sunrise Medical S-646 instruction manual Headrest, Foam Back, Seat Tilt Adjustments
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S-646 specifications

The Sunrise Medical S-646 is a cutting-edge power wheelchair designed to enhance mobility and independence for users with various physical disabilities. This innovative wheelchair features a blend of advanced technology and ergonomic design, making it a popular choice for users seeking comfort and ease of maneuverability.

One of the standout features of the S-646 is its robust power base, which is built for stability and durability. The wheelchair is equipped with two powerful motors, ensuring smooth operation on various terrains, including both indoor and outdoor environments. The S-646 can effortlessly navigate tight spaces and transition over obstacles, such as curbs and inclines, thanks to its advanced suspension system.

Comfort is paramount in the design of the S-646. The wheelchair comes with a highly adjustable seating system, including options for tilt, recline, and lateral support. This allows users to customize their seating position for optimal comfort and pressure relief, significantly reducing the risk of pressure sores during prolonged use. The upholstery is designed with breathable materials that provide additional comfort over long periods.

In terms of technology, the S-646 incorporates an intuitive joystick control system, allowing users to easily navigate their surroundings. The joystick is highly responsive and can be adapted for users with varying levels of motor control, ensuring accessibility for everyone. Additionally, the power wheelchair features programmable settings, enabling caregivers and users to personalize the chair's speed and control sensitivity to fit individual needs.

Safety features are also a significant consideration in the design of the S-646. The wheelchair includes anti-tipper technology and stabilizing components that provide added security, particularly when navigating steep slopes. LED lighting ensures visibility during low-light conditions, enhancing overall safety.

The S-646 is designed with portability in mind. It can be disassembled easily into compact components, making transportation and storage hassle-free. Battery longevity is another key characteristic, with options for high-capacity batteries that extend the range of usage, allowing users to travel longer distances without frequent recharging.

In summary, the Sunrise Medical S-646 power wheelchair stands out due to its combination of advanced features, ergonomic design, and innovative technology. Its focus on comfort, safety, and user adaptability makes it an excellent choice for individuals seeking a reliable and functional mobility solution.