PROCEDURE 12

WHEELS/MOTORS

 

4. Remove the two (2) mounting screws, spacers, and

 

washers that secure the MKIV controller to the base

W

frame. Set MKIV controller onto ground/floor.

 

HNOTE: STEPS 5, 6, and 7 are necessary to obtain

Eeasier access to the motor/controller connection.

E5. Remove the mounting screw and spacer that secure

Lthe top of the shock to the base frame.

S6. Loosen, DO NOT remove, the mounting screw that se-

/cures the bottom of the shock to the suspension arm.

M

7. Rotate top of shock toward the inside of the wheelchair.

O ]

T8. Disconnect the motor connector from controller.

O9. Remove the two (2) allen screws and washers that

Rsecure the motor to the gearbox.

SCAUTION

DO NOT damage the motor/gearbox coupling.

10. Carefully pull the motor away from the gearbox.

Installing

1.Perform one (1) of the following:

A.For RWD and MWD perform STEPS 2-3.

B.For FWD ONLY perform STEPS 2-10.

2.Perform the following:

A.Inspect the coupling for wear and damage. If dam- age is evident, replace coupling.

B.Installcouplingontogearboxinputshaftinsertingcou- pling drive plate onto slot on shaft.

C.Carefully align motor and coupling and place motor against gearbox.

D.Withmotoragainstgearbox,turngearboxdriveshaft until the coupler seats into gearbox.

NOTE: When properly aligned, motor will be seated into gearbox.

E.Install two (2) allen screws. Use Loctite 242, tighten allen screws evenly and then torque to 75-inch lbs.

3.Reconnect right and/or left motor connector to controller.

4.Rotatethetopoftheshockoftheshocktowardtheinside of the wheelchair.

5.Installthemountingscrewandspacerthatsecurethetop of the shock to the base frame. Torque to 156 - inch pounds.

6.Tighten the mounting screw that secures the bottom of the shock to the suspension arm. Torque to 156 - inch pounds.

7.Install the two mounting screws that secure the MKIV controllertothebaseframe.Torque to 156 - inch pounds.

8.Install the battery box(es). Refer to INSTALLING/RE- MOVING GROUP 24 BATTERY BOXES in PROCE- DURE 9 of this manual.

9.Install the counterweight. Refer to REMOVING/IN- STALLING THE COUNTERWEIGHT in PROCE- DURE 17 of this manual.

10.Installthefrontshroud.Referto REMOVING/INSTALL- ING FRONT SHROUD in PROCEDURE 17 of this

manual.

Base

ARROW FWD MODEL ONLY

Mounting Screw

Frame

(REMOVE)

 

Locknut

Spacer

 

 

MKIV

 

Controller

Washer

Shock

Suspension

Mounting Screw

Mounting

Arm

(Loosen, DO NOT

Screws

 

 

REMOVE)

 

RWD, MWD, AND ARROW FWD MODELS

Motor

Connector

 

Motor Connector

 

Motor

 

Coupling

Allen

Gearbox

Screw

 

Washer

Slots*

*NOTE: The following slot locations must line up for proper

installation: Slots on coupling of motor, the slots on the coupling and the slots on the gearbox.

FIGURE 5 - REMOVING/INSTALLING THE MOTOR - CONVENTIONAL MOTOR/GEARBOX FOR RWD, MWD AND FWD MODELS

58

Page 57 Page 59
Page 58
Image 58
Invacare Arrow FWD, MWD, RWD service manual Easier access to the motor/controller connection, Locknut Spacer, Washer Shock
Page 57 Page 59

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.
Top Page Image Contents