Ride JAVA Guide de l'utilisateur

Ride JAVA®

Adjustable Back Support

Owner’s Handbook

Warranty Policy

Installation and Use Instructions

toll-free: 866.781.1633

phone: 303.781.1633

www.ridedesigns.com

Ride Designs®

a branch of Aspen Seating, LLC

4211- G South Natches Court

Sheridan, Colorado 80110

▲

Warranty Policy

Your Ride Designs®JAVA®Adjustable Back Support has been carefully

constructed to meet your posture and skin integrity needs. This Limited

Warranty is effective for 24 months from the date of delivery to the

original purchaser. If any defect in material or workmanship is found,

Ride Designs will repair or replace the component, at our discretion.

This limited warranty does not cover daily wear and tear or damage that

is a result of mishandling, misuse, neglect, or not following the care and

maintenance instructions.

Claims and repairs should be processed through your nearest authorized

Ride Designs rehab technology supplier. A copy of the Bill of Sale issued to

the purchaser of the product might be required prior to processing a

warranty claim.

Maximum client weight capacity is 300 pounds.

General Product Safety

Safe application of this product depends upon your good judgment and

common sense, as well as that of your provider, caregiver, and/or healthcare

professional, and your attentiveness in following the warnings, cautions, notes,

and instructions in this manual.

NOTE: Denotes important things to remember when using this product.

WARNING: Indicates a potentially dangerous situation that, if not heeded, could

result in serious injury.

CAUTION: Failure to heed cautions might result in damage to your product.

NOTE: Ride Designs is not liable for damage to property or personal injury

arising out of unsafe use of this product. Ride Designs is also not liable for any

property damage or personal injury arising out of the failure of any person

and/or user to follow the instructions or recommendations set forth in 1) this

manual, or 2) any other instructions or recommendations contained in related

literature issued by Ride Designs, or 3) contained on the product itself, or

4) on our website www.ridedesigns.com.

NOTE: We have compiled this manual from the latest speciﬁcations and product

information available at the time of publication. We reserve the right to make

changes as they become necessary. Any changes to our products might cause

slight variations between the illustrations and explanations in this manual and the

product you have purchased.

WARNING: All Ride Designs support surfaces are designed to help reduce the

incidence of pressure sores. However, no back support can completely eliminate

sitting pressure or prevent pressure sores. The Ride JAVA back support is not

a substitute for good skin care including proper diet, cleanliness, and regular

pressure relief techniques.

Available Sizes

The JAVA®Back is available in a range of sizes. Please visit www.ridedesigns.com

for the most current information on size availability.

Installation Instructions

We recommend that a therapist or authorized Ride Designs supplier perform

the initial ﬁtting of your back support. Your JAVA Back is designed so that pelvic

support and trunk balance can be adjusted independently of each other. Lateral

pelvic wedges and the new Flexa-just™support provides additional support and

stability when needed.

The JAVA Back consists of four components: 1) mounting hardware, 2) Flexa-just

accessories, 3) the back shell, and 4) the removable foam insert and cover.

WARNING: Installation of any back rest on your wheelchair might alter your

center of gravity within the wheelchair. A recessed back position might cause

the wheelchair to tip backwards, potentially resulting in injury. Always assess

1Ride Designs, Java Back and the RIDE logo are registered trademarks of Aspen Seating, LLC.

the need for anti-tippers or amputee axle adapter brackets to be added to your

wheelchair to help increase stability. Similarly, a more forward back position

might reduce the forward stability of the wheelchair, increasing risk of tipping

forward, with potential for injury.

WARNING: Do not use your JAVA Back without the foam insert and cover in

place.

WARNING: Failure to properly place and secure the JAVA Back to your

wheelchair might result in serious injury.

WARNING: Failure to accurately assess and adjust the ﬁt of the JAVA Back might

result in serious injury.

CAUTION: Do not lift the wheelchair by the JAVA Back.

I. Tools and Hardware

The JAVA Back comes fully assembled and ready to install. The tools you need to

install and adjust the JAVA Back are included in the package:

 •one4mmAllenwrench

 •one5mmAllenwrench

 •twoclampscrewsformountingbackto¾"diameterbackcanes.

II. The Mounting Hardware

Themountinghardwaretsallcommonwheelchairframetubingfrom¾"to1"

diameter. Use the screws that are already in the clamps for 7/8 inch and 1 inch

diameter tubing. Use the shorter screws, included in the Java Back Tools kit, for

¾"tubing.

Figure 1

III. Installing the Mounting Hardware

WARNING: No one should be seated in the wheelchair during the ﬁrst four steps.

NOTE:Fastenertorquesnottoexceed35in.-lbs.

1. The Java Back ships with the

back shell engaged with the

mounting hardware to assist in

visualizing ﬁnal assembly on

to the wheelchair.

2. Press the release latch button

(Figure 2) on one of the hardware

assemblies to separate the mounting

hardware from the back shell.

3. Loosen the clamp screw and swing

it out of the recess in the clamp to allow

the clamp to open fully (Figure 3).

4. Position the clamp over the

appropriate (left/right) wheelchair

cane, pull the two halves of the clamp

together around the tubing. Swing the

screw back into position within the

clamp recess (ﬁgure 4). Orient the clamp

to approximate the desired back height.

You will adjust for correct back height

once the user is sitting in the wheelchair.

Rotate the hardware about the canes

so the hardware is square with the chair

(Figure5).

5. Repeatsteps2through4forthe

opposite clamp ensuring the clamp is

set at the same height as the opposite

side previously installed. Attach the

back shell by guiding the bottom

attachment pins into the lower receiver

slots and then pushing the top attach-

ment pins into the latch mechanism.

Be sure both latch buttons pop back,

and tug the back shell forward to verify

that it is secure.

6. Wheelchair frame widths can vary

from chair to chair. If you have any

trouble aligning the mounting brackets

with the attachment pins, you can easily

adjust the width of the JAVA Back to

ﬁt perfectly.

Figure 2

Figure 3

Figure 4

Figure 5

Release

latch button

Hardware

square with chair

Usethe5mmAllenwrenchtoloosen

the height and width adjustment screws

indicated in Figure 6. Move the pin

brackets on the shell inward/outward

enough to allow all four attachment pins

to align and latch securely into the

mounting hardware. Use the index

marks provided (Figure 7) to center the

back shell on the pin brackets. Tighten

the height and width adjustment screws

securely.

NOTE: The Java Back is assembled at the factory to ﬁt a

wheelchair matching the width of the Java Back. The width

adjustment screws allow for ﬁne tuning of width as outlined

above, and also have sufﬁcient range of movement to permit

installationof15"andwiderJavaBacksonwheelchairs+/-1"from

speciedwidth,e.gthe16"wideJavaBackcanbeadjustedtot15",

16"and17"widewheelchairs.

7. Check to make sure the back shell detaches easily by pushing both latch

release buttons and pulling the back shell upward and forward. Make sure the

back shell reattaches easily and securely by guiding the bottom attachment pins

into the lower receiver slots and then pushing the top attachment pins into the

latch mechanism. Be sure both latch buttons pop back, and tug the back shell

forward to verify that it is secure. If there is any binding or if you have any trouble

removing or replacing the back shell, repeat step 6 as necessary for smooth

operation.

8. Place the appropriate wheelchair cushion on the wheelchair and have the user

transfer to the wheelchair. Ensure the user is correctly positioned on the cushion.

Figure 6

Figure 7

Height

and width

adjustment

screws are

circled

Index

marks

IV. Adjusting the Seat Depth

If you need to adjust the seat depth,

follow the instructions below.

1. Loosen the depth adjustment screws

indicated in Figure 8.

2. Move the back shell to the

appropriate seat depth for the user.

3. Tighten the screws just enough to

hold the back in position, and use the index marks near the adjustment slots to be

sure that both sides of the back are at the same depth.

5.Whenthedepthissetcorrectly,tightenallfourdepthadjustmentscrewssecurely.

V. Adjusting the Back Height

1. Loosen the clamp screws and move

the mounting brackets up or down on

the back canes as necessary to set the

back height so that the PSIS alignment

line labeled near the bottom center of

the JAVA back shell is at the level of the

posterior superior iliac spines (PSIS).

2. Tighten the two clamp screws.

3. If you need to position the mounting brackets to clear armrests, a rigidizer bar,

or other wheelchair hardware, you can adjust the height of the back independently

of the clamps. Begin by positioning the mounting clamps as close as possible to

thedesiredbackheight.Thenusethe5mmAllenwrenchtoloosentheheightand

width screws in the horizontal slots on the back shell brackets (Figure 9), move

the back shell to the desired height, and retighten the screws. Make sure the back

shell is level from left to right, and that you have preserved the width adjustment for

smooth and safe removal and replacement.

NOTE: Java Clamp Reversal Instructions

Clamps can be ﬂipped upside down to achieve a higher backrest or to avoid

interferences. See steps A-D on page 6.

Figure 8

Depth

adjustment

screws are

circled

Figure 9

PSIS

Height and width adjustment

screws are circled

Clamp

screw

Java clamp

reversal option

Java clamp

as shipped

VI. Adjusting Seat to Back Angle

1.Usethe5mmAllenwrenchtoloosen

the back angle adjustment screws

indicated in Figure 10.

2. Adjust the JAVA Back to the desired

seat-to-back angle.

3. Tighten the screws just enough to

hold the back in position, and use the

index marks near the adjustment slots to be sure that both sides of the back are at

the same angle.

4. When the angle is set correctly, tighten the screws securely.

VII. Adjusting the Flexa-just Stays

1. The Flexa-just stays are thin

aluminum strips inserted into pockets

on the inside surface of the back cover,

behind the foam pads. NOTE: The

Flexa-just stays can be bent to provide

comfortable support to the gluteal area

below the level of the back shell.

Depending on the unique needs of the

user, you can easily adjust the stays to

provide the correct amount of support.

The stays are easy to bend using hand

pressure—no tools are required

( F i g u r e 11).

2. The stays can be bent while the user is sitting in the wheelchair. Simply insert

your hand between the foam insert and the sitter, grasp the lower portion of the

stays through the cover and foam insert, and bend in the amount and direction

needed to apply comfortable support.

3. If opening the back angle causes undesirable pressure or discomfort in the

gluteal area, simply bend the Flexa-just stays posteriorly to accommodate and

comfortably support the gluteal soft tissue.

4. If there is insufﬁcient contact with the gluteal soft tissue, bend the stays

anteriorly to provide optimum support.

Figure 10

Back

angle

adjustment

screw is

circled

Figure 11

Flexa-just stays

Remove the two clamp

screws and two slot nuts

from the mounting bracket

and set aside.

A B

Move clamp to opposite

side of back.

Flip clamp upside down. Attach clamp to mounting

bracket using the two clamp

screws and two slot nuts

from A.

C D

VIII. Installing the Pelvic Wedges

NOTE: If you determine that further

posterior lateral pelvic support is

necessary, use the pelvic wedges to

provide greater control at the posterior

lateral iliac crests. See Figure 12 for

suggested orientation of pelvic wedges.

1. For evaluation, have the user lean

forward enough for you to position the

pelvic wedges on the front of the foam

insert cover to establish where they

should be installed.

2. Have the user lean back, and ﬁne-tune the height and distance from the center

for each pelvic wedge.

3. Have the user lean forward or transfer from the chair, and remove the foam

insert and cover from the back shell.

4. Open the cover and attach the pelvic wedges to the front surface of the

Flexa-just platform, behind the foam pad, at the height and width you determined

during assessment. Press the hook and loop fasteners together ﬁrmly to hold the

pelvic wedges in place.

5.Closethecoverandreinstallthefoaminsertandcoveronthechair.

6. The user can now transfer back into the wheelchair.

7. Check the position of the pelvic supports and verify that the user has

appropriate balance and control.

IX. Installing the Optional Lateral Trunk Supports

NOTE: If you are not installing the

optional lateral trunk supports, go to

Section X.

1. With the user in the chair and

the foam insert and cover installed,

estimate where the lateral trunk

supports will be installed by slipping

them between the back shell and the

foam insert and cover (Figure 13).

2. Once you have established the approximate position of the lateral trunk

supports, transfer the user from the wheelchair.

3. Remove the foam insert and cover from the back shell.

4. Attach each lateral support using the mounting hardware supplied with them.

With the lateral trunk support positioned on the front of the back shell, insert the

Figure 12

Figure 13

Pelvic

Wedges

provided screw (A) and ﬂat washer (B) from the outside of the back shell through

the vertical slot in the back shell and the horizontal slot in the trunk support, and

hand tighten into the threaded slot nut (C).

5.Repeatforadditionaltrunksupports.

6. Reattach the foam insert and cover.

7. The user can now return to the wheelchair for ﬁnal adjustment of lateral trunk

support alignment.

8. When you have determined the ﬁnal position of the trunk supports, tighten the

mountinghardwaresecurelywitha5mmAllenwrench.

X. Adjusting Dynamic Back Movement

NOTE: As supplied by Ride Designs,

the dynamic back adjustment is set to

allow maximum movement. To reduce

or eliminate dynamic back movement,

follow the instructions below.

1. Use the 4mm Allen wrench to set

the amount of travel for dynamic back

movement (Figure 14).

2. With the adjustment screws turned

all the way in (clockwise), there is no

dynamic back movement. Turning the adjustment screws out

(counterclockwise) permits the back to move against spring tension.

CAUTION: If you choose an intermediate amount of dynamic back movement, be

sure that the screws on each side are adjusted equally by turning them all the way

in and then backing them out the same number of turns.

XI. Installing a Universal Headrest Mount

The tall JAVA back shell has provisions for attaching

a Universal Headrest Mount, which is available

through your Ride Designs supplier. The Universal

Headrest Mount accepts most commercially available

headrests. To attach the Universal Headrest Mount,

remove the four small plastic plugs from the threaded

inserts near the top of the back shell and use the

mountinghardwareprovided(Figures15and16).

XII. Ensure all Fasteners are secure

Usingthe4mmand5mmAllenwrenches,recheck

all of the fasteners and tighten them securely.

Figure 14

Figure 15

Figure 16

Dynamic

back

adjustment

Initial wearing schedule

Prior to prolonged sitting, you should use your Ride JAVA Back for a short period

of time and visually check any area that contacts the back support. Any reddened

area should fade within 10-30 minutes. Contact your doctor or therapist if redness

persists for longer than 30 minutes. As long as skin inspections do not show red

areas persisting more than 30 minutes, you are safe to continue use. Make a

careful skin check at least daily, even after skin tolerance is established. Continue

to perform routine intermittent pressure relief techniques (forward lean) as advised

by your healthcare professional.

WARNING: If any redness associated with the use of the JAVA Back persists

for longer than 30 minutes, cease using and contact your therapist or doctor

immediately.

Follow-up

We recommend you have your seated posture and skin integrity checked by your

healthcare professional at least annually, or whenever you experience a change

in your weight, posture, or general condition that could impact your ability to sit

safely, comfortably, and functionally.

Retighten all of the fasteners regularly, and

periodically check the hardware for security

and wear.

Use of your Ride JAVA Back

Your Ride JAVA Back is designed to provide

optimal pelvic support and trunk balance while

allowing upper body freedom.

You can remove or attach the back shell

with one hand.

To remove the back shell from

the wheelchair

1. Push each of the two latch release buttons

on the mounting hardware (Figure 17).

2. Rotate the back shell forward then lift

upward (Figure 18 and 19).

To attach the back shell

to the wheelchair

1. Guide the bottom two attachment pins into

the lower receiver slots on the latch brackets

(Figure 20).

Figure 17

Figure 18

Figure 19

Latch

release

button

Rotate

forward

Lift

upward

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