Invacare OCMK78, OCMK01 User Manual
On Chair Mounting Kit
Assembly, Installation and Operating Instructions
Model Nos. OCMK01 and OCMK78
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
To ensure the safe installation of the On Chair Mounting Kit for the ContourU seating system,
these instructions must be followed:
GENERAL WARNINGS
DO NOT install this equipment without first reading and understanding this
instruction sheet. If you are unable to understand the Warnings, Cautions and
Instructions, contact a healthcare professional, dealer or technical personnel if
applicable before attempting to install this equipment - otherwise, injury or dam-
age may occur.
Unless otherwise noted, installation and adjustments should be made while the
wheelchair is unoccupied
INSTALLATION WARNINGS
The position of the On Chair Mounting Kit in the different mounting bracket
configurations is directly related to the chair's stability. When the On Chair
Mounting Kit is installed on a TILT and/or RECLINING wheelchair, the
wheelchair's stability may decrease. It may be necessary to reposition the FRONT
CASTERS, REAR WHEELS, BACK ANGLE, TILT-IN-SPACE, RECLINE POSI-
TION and/or SEAT DEPTH before use. Refer to appropreate wheelchair owners
manual. Use EXTREME caution when using a new seating position.
Before final tightening, ensure that the brackets will not interfere with the
opperation of the wheelchair, or be in a position to injure the patient or any
attendant.
After ANY adjustments, repair or service and BEFORE use, make sure that all
attaching hardware is tightened securely.
USER WARNINGS
Skin condition should be checked frequently after the installation of any new
seating system.
Your therapist and physician should be consulted if you have any questions regard-
ing individual limitations and needs.
Working with your therapist, physician, and rehabilitation technology supplier is
the best way to assure that the ContourU seating system choice matches your
individual needs.
As the needs of the individual become more complex, the ContourU seating
system evaluation becomes more important.
IMPORTANT INFORMATION
The best way to avoid problems related to pressure sores is to understand their causes and
your role in a skin management program.
Your therapist and physician should be consulted if you have questions regarding individual
limitations and needs.
All seats and/or backs should be selected carefully. Working with your therapist, and physician
is the best way to assure that a seat choice matches your individual needs.
As the needs of the individual become more complex, the seat evaluation becomes more
important.
INSTALLATION INFORMATION:
Before you install the On Chair Mounting Kit, determine where the ContourU back cushion
must be placed in relation to the seat cushion. Find the appropriate recline angle and seat
depth, and estimate where the clamps will be mounted. Remove any obstacles on the wheel-
chair back canes and seat rails that might interfere with installation.
The adjustable mounting brackets can be placed in different configurations. It is important to
determine first where the ContourU seating system will be placed in relation to the wheelchair
frame.
To maintain the original center of gravity (CG) of the wheelchair user, the ContourU back will
normally be placed between or behind the back uprights.
INSTALLATION OF THE ON CHAIR MOUNTING KIT
BACK MOUNTING HARDWARE (FIGURE 1)
NOTE: Refer to GENERAL and INSTALLATION WARNINGS in the SAFETY SUMMARY in this instruction
sheet.
NOTE: The wheelchair hardware consists of two (2) fixed release clamps and two (2 twist release clamps.
The wheelchair hardware must be mounted facing forward (in front of the canes) with the twist release
clamps at the top and the fixed release clamps at the bottom.
NOTE: The back mounting brackets should be placed on the back cane without interfering with other
wheelchair parts or accessories.
1. Install the four (4) L brackets to the ContourU back. Refer to
BRACKETS in this procedure of the instruction sheet.
2. Install the J brackets onto the L brackets. Refer to
J BRACKETS in this instruction sheet.
3. Position the back onto the back canes in the desired location.
4. On the back cane, mark the bottom edge of the two (2) lower J brackets and the top edge
of the two (2) upper J brackets as shown in DETAIL "A" of FIGURE 1.
5. Remove the mounting screw, washer, lock washer, and internal threaded mounting screw
from one of the fixed release clamps.
INSTALLING/ADJUSTING THE BACK
INSTALLING THE BACK L
2
6. Install the fixed release clamp onto the back cane so that the fixed release clamp is facing
the front of the wheelchair and the bottom edge is aligned with the mark made in STEP 4
as shown in DETAIL "B" of FIGURE 1.
7. Using the mounting screw, washer, lock washer, and internal threaded mounting screw,
secure the fised release clamp to the back cane. Securely tighten.
8. Repeat STEPS 5-6 to install remaining fixed release clamp.
9. Remove the mounting screw, washer, lock washer, and internal threaded mounting screw
from one of the twist release clamps.
10. Install the twist release clamp onto the back cane so that the twist release clamp is facing
the front of the wheelchair and the top edge is aligned with the mark made in STEP 4 as
shown in DETAIL "B" of FIGURE 1.
11. Using the mounting screw, washer, lock washer, and internal threaded mounting screw,
secure the fixed release clamp to the back cane. Securely tighten.
12. Repeat STEPS 8-9 to install remaining twist release clamp.
13. Install the ContourU back onto the chair. Refer to
CONTOUR U SEATING SYSTEM BACK in this instruction sheet.
14. If back depth and or angle adjustments are necessary refer to
CONTOUR U SEATING SYSTEM BACK in this instruction sheet.
INSTALLING/REMOVING THE
DETAIL "A"
Back Canes ContourU Back
Upper J Brackets
(Top Edge)
Mark
L Brackets
Back Ccane
Mounting
Screw
Washer
Mark
Mark
ADJUSTING THE
DETAIL "B"
FRONT OF
WHEELCHAIR
Twist
Release
Clamps.
Lock
Washer
Internal Threaded
Mounting Screw
Mark
Lower J Brackets
(Bottom Edge)
Mounting
Screw
Washer
Lock
Washer
Fixed Release
Clamp
Internal
Threaded
Mounting
Screw
FIGURE 1 - INSTALLATION OF THE ON CHAIR MOUNTING KIT BACK
MOUNTING HARDWARE
3
INSTALLING THE BACK L BRACKETS (FIGURE 2)
NOTE: When mounting the L brackets to the wood backed ContourU cushion the L brackets may be
reversed to allow for greater seat depth adjustments as shown in DETAIL A of FIGURE 2.
1. Position the ContourU Back between the back canes and determine the mounting posi-
tions for the four (4) L brackets to obtain the desired back depth.
2. If mounting L bracket to a pan back, pull to remove the ContourU cushion from the pan
back.
3. Align L bracket with the edge of the seat back and two (2) desired mounting holes as
shown in FIGURE 1.
4. Perform one (1) of the following:
A. PAN BACK: Using a backing plate and two (2) mounting screws, secure the L bracket
to the pan back.
B. WOOD BACK: using two (2) mounting screws secure the L bracket to the wood back.
5. Repeat STEPS 3-4 for remaining three (3) L brackets.
6. If mounting L bracket to a pan back, reinstall the ContourU cushion onto the back pan.
WOOD BACKPAN BACK
NOTE: ContourU cushion
not shown.
Backing Plate
Edge of the Seat Back
Edge of the Seat Back
Mounting Holes
L Bracket
Mounting Screws
Pan Back
Mounting Holes
L Bracket
Mounting Screws
L Bracket
(Reversed)
DETAIL "A"
Mounting
Holes
Mounting
Screws
FIGURE 2 - INSTALLING THE BACK L BRACKETS
4
INSTALLING THE BACK J BRACKETS (FIGURE 3)
1. Position the ContourU back between the back canes to determine the approximate
mounting position of the J brackets to obtain the desired depth.
2. Align two (2) of four (4) mounting holes of the J bracket with two (2) of five (5) mounting
holes on the L bracket as shown in FIGURE 3.
3. Using two (2) mounting screws and locknuts, secure the J bracket to the L bracket. Se-
curely tighten mounting hardware.
4. Repeat STEPS 2-3 with three (3) remaining brackets.
ContourU Back
J Bracket
Mounting Screw
Mounting Holes
L Brackets
Locknuts
FIGURE 3 - INSTALLING THE BACK J BRACKETS
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