Invacare MB-54 User Manual

Personal Back Bottom Mounting Hardware

Assembly, Installation and Operating Instructions

Kit No. MB-54

SAVE THESE INSTRUCTIONS

NOTE: Check all parts for shipping damage. In case of
damage, DO NOT use. Contact Carrier/Invacare for fur­ther instruction.

SAFETY SUMMARY

The following recommendations are made for the
safe installation of the Personal Back Bottom Mount­ing Hardware:

GENERAL W ARNINGS

DO NOT install this equipment without first read­ing and understanding this instruction sheet. If you
are unable to understand the W arnings, Cautions
and Instructions, contact a healthcare profes­sional, dealer or technical personnel if appli­cable before attempting to install this equipment

- otherwise, injury or damage may occur.

INST ALLATION W ARNINGS

The position of the Personal Back in the different
mounting bracket slots is directly related to the
chair's stability. When the Personal Back is added
to a TILT and/or RECLINING chair, it may cause a
decrease in the chair's stability. It may be neces­sary to reposition the FRONT CASTERS, REAR
WHEELS, BACK ANGLE, TILT-IN-SPACE, RECLINE PO­SITION and/or SEA T DEPTH before use. Use EXTREME
caution when using a new seating position.

After ANY adjustments, repair or service and BE­FORE use, make sure that all attaching hardware
is tightened securely.

INST ALLATION CAUTION

When using LOCTITE 290, follow the manufac­turers' recommendations.

USER W ARNINGS

Skin condition should be checked frequently
after the installation of any new seat.

Y our therapist and physician should be consulted
if you have any questions regarding individual
limitations and needs.

Working with your therapist, physician, and
rehabilitation technology supplier is the best
way to assure that a Personal Back choice
matches your individual needs.

As the needs of the individual become more
complex, the Personal Back evaluation be­comes more important.

This kit includes the following:

ITEM COMPONENT QTY.

1. Threaded Latch Pin 2

2. Nylon Locking Key 2

3. End Cap for Latch Pin 2

4. 3/16-inch Retaining Ring 2

5. Utility Spring 2

6. #10 Flat Washer 2

7. Ziplock Bag * 1

8. Carton * 1

* NOT SHOWN

INST ALLING HARDW ARE (FIGURE 1)

1. Move foam padding on inside of Personal Back shell
to access the mounting holes.

2. Insert the Threaded Latch Pin (Item 1) from the back
of the Personal Back, threaded end first toward out­side edge of Personal Back. Insert through first hole
ONL Y.

3. Slide the #10 flat washer (Item 6) onto the threaded
end from the inside of the Personal Back.

4. Slide the Utility Spring (Item 5) onto the Latch Pin and
slide threads of the Latch Pin through remaining hole.

5. Temporarily screw the Nylon Locking Key (Item

2) onto the Latch Pin to prevent Latch Pin from
falling out of the Personal Back. DO NOT USE

LOCTITE YET.

6. Locate the groove on the Latch Pin.

7. Push latch pin fully through Personal Back until
retaining groove is visible from inside Personal
Back.

8. This requires compressing the spring. Maintain
spring in compressed position to access groove.

9. Insert Retaining Ring (Item 4) into groove on Latch
Pin.

10. Release Latch Pin. It will be held in place by the
Retaining Ring.

1

2

Personal

Back

(Inside)

Mounting

Holes

1

Groove

for 3/16"

4

Retaining

Ring

PERSONAL

BACK

3

A

A

SECTION

5

6

FIGURE 1 - INSTALLING HARDWARE

INSTALLING NYLON LOCKING KEY
(FIGURE 2)

NOTE: The teardrop end of the locking key MUST be
installed at a 30O angle to the Left and Right handles of
the Latch Pins or they will NOT properly attach to the
brackets on the wheelchair.

CAUTION

When using LOCTITE 290, follow the manufac­turers' recommendations.

1. Remove Nylon Locking Key from the Latch Pin

2. Place a small bead of LOCTITE 290 onto the

threads of the Latch Pin.

3. Install the Nylon Locking Key onto the threads of the
Latch Pin at a 30

4. Proceed to install the remaining Nylon Locking Key
onto the Latch Pin of the other side.

O

angle to the handle.

Cross Section View of Section

"T eardrop" end of Nylon Lock­ing Keys MUST be installed at
a 30O angle to the handles of
the Latch Pins.

Nylon Locking Key

Apply LOCTITE to

Threads of Latch Pin

Handle

Install Nylon Locking

A-A

Handle

Latch Pin

Personal Back

(Inside)

Handle

Key

30

O

30

O

LEFT ASSEMBLY RIGHT ASSEMBLY

(VIEWED FROM HANDLE END OF ASSEMBLY.)

FIGURE 2 - INSTALLING NYLON LOCKING KEY

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