MWD WHEELCHAIRS

PROCEDURE 15

2.Count the number of exposed threads and repeat this procedure for the opposite shock.

3.Proceed to STEP 9 in HEIGHT ADJUSTMENT OF STABILIZERS in this procedure of the manual.

REMOVING/INSTALLING GEARBOX (FIGURE 12)

2.Whenreassemblingthegearboxtothesuspensionarm, use Loctite 242 and torque mounting screws to 160- inch pounds.

NOTE: Replace any parts that show signs of wear or dam- age.

3.Reinstall the drive wheel hub to the new gearbox drive shaft. Refer to REMOVING/INSTALLING DRIVE WHEEL HUBS in PROCEDURE 12 of this manual.

M W D

W H E E

CAUTION

Perform the following procedure in a des- ignated work area to prevent damage to flooring (carpeting, tile, etc.).

Removing

1.Remove the drive wheels from the wheelchair. Refer to REMOVING/INSTALLING DRIVE WHEELS in PRO- CEDURE 12 of this manual.

2.Remove the drive wheel hub from the existing gearbox drive shaft. Refer to REMOVING/INSTALLING DRIVE WHEEL HUBS in PROCEDURE 12 of this manual.

NOTE: Note the mounting position of gearbox to the sus- pension arm before gearbox disassembly.

3.Remove the four (4) mounting screws that secure the motor/gearbox to the suspension arm.

4.If necessary, remove existing motor from gearbox. Re- fertoREMOVING/INSTALLINGTHEMOTORinPRO- CEDURE 12 of this manual.

5.If necessary, install existing motor onto NEW gearbox. Refer to REMOVING/INSTALLING THE MOTOR in PROCEDURE 12 of this manual.

Installing

WARNING

When reinstalling the gearbox ALWAYS use the mounting holes furthest back on the sus- pension arm. DO NOT reposition the motors.

CAUTION

The FRONT mounting screws that secure the gearbox to the suspension arm MUST be 5/ 16-18 x 2-1/2-inches long and the REAR hex screws that secure the gearbox to the sus- pension arm MUST be 5/16-18 x 1-1/4-inches long. Otherwise damage to the gearbox casting can result.

1.Position the NEW gearbox with the mounting holes fur- thest back on the suspension arm.

4.Reinstall the drive wheels onto the wheelchair. Refer to REMOVING/INSTALLING DRIVE WHEELS in PRO- CEDURE 12 of this manual.

5/16-18 x 1-1/4-inch

Mounting Screws

 

5/16-18 x 2-1/2-inch

WARNING

Mounting Screws

 

When reinstalling the gearbox ALWAYS use the mounting holes furthest back on the suspension arm. DO NOT reposi- tion the motors.

Motor

Gearbox

Suspension Arm

FIGURE 12 - REMOVING/INSTALLING GEARBOX

REPLACING SUSPENSION ARM (FIGURE 13)

1.Remove the drive wheels from the wheelchair. Refer to REMOVING/INSTALLING DRIVE WHEELS in PRO- CEDURE 12 of this manual.

2.Perform one (1) of the following:

A.(GROUP 24) - Loosen the mounting screws that secures the wiring harness and the battery sub- frame to the base frame assembly.

B.(GROUP 22) - Loosen the two (2) mounting screws that secures the rear of the battery tray to the sub-frame assembly.

L C H A I R S

77

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Invacare RWD, MWD REMOVING/INSTALLING Gearbox Figure, Replacing Suspension ARM Figure, Motor Gearbox Suspension Arm
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Arrow FWD, RWD, MWD specifications

Invacare is a renowned name in the field of mobility technologies, consistently innovating and enhancing the mobility devices market. Among its outstanding offerings are the Invacare MWD (Mid Wheel Drive), RWD (Rear Wheel Drive), and Arrow FWD (Front Wheel Drive) wheelchairs. Each of these models serves unique user needs, featuring distinct designs and functionalities.

The Invacare MWD is engineered for exceptional maneuverability. Its mid-wheel drive technology provides a centralized drive wheel, allowing for tight turns and easy navigation in confined spaces. This makes the MWD particularly suitable for indoor use, where space can be limited. The MWD also features advanced suspension systems, offering superior shock absorption. This results in a smoother ride over various terrains, enhancing user comfort and stability.

On the other hand, the Invacare RWD focuses on robust outdoor performance. With its rear-wheel drive configuration, this model has excellent traction and provides powerful acceleration. The RWD is designed for versatility, equipped with larger wheels that can handle uneven terrain while providing a stable ride. Its durable construction ensures enhanced longevity, making it an ideal choice for users who lead an active lifestyle and require reliable mobility solutions on rugged ground.

The Arrow FWD wheelchair brings another dimension with its front-wheel drive system. This design allows users to easily navigate obstacles as the front wheels can pivot over them. The Arrow FWD is particularly suited for both indoor and outdoor use, as it combines the agility of the MWD with the stability seen in the RWD. It features a compact design, making it easier for users to position themselves in various settings and social situations.

All three models utilize Invacare's cutting-edge technologies, such as advanced control systems and customizable seating options, enabling users to find their optimal comfort and support levels. The customizable features also cater to individual user needs, promoting enhanced independence.

In summary, Invacare’s MWD, RWD, and Arrow FWD wheelchairs represent an impressive blend of functionality, durability, and user-centric design. Each model presents its own unique technologies and attributes, allowing users to make informed choices based on their specific mobility requirements, lifestyle, and preferences. Whether navigating tight indoor spaces or tackling outdoor challenges, Invacare’s range of wheelchairs ensures that users can experience mobility with confidence and ease.
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