PROCEDURE 15

MWD WHEELCHAIRS

 

 

 

3.

Removegearboxfromtheexistingsuspensionarm.Re-

 

 

fertoREMOVING/INSTALLINGGEARBOXinthisproce-

M

 

dureofthemanual.

4.

Remove the mounting screw, two (2) flat washers,

W

 

two (2) spring washers, two (2) inner link spacers,

D

 

and locknut that secures the bracket end of the sus-

Wpension arm, the bottom of the shock, and stabilizer

Hbracket together.

E

5. Remove plug button from the middle of base frame.

E

 

L6. Remove the mounting screw and the beveled wash-

Cers that secures the tubular end of the suspension

H arm assembly to the base frame.

A

7. Remove the suspension arm from the wheelchair.

I

R8. Position bracket end of NEW suspension arm around

S shock.

9.Thread existing mounting screw through stabilizer bracket, bracket end of suspension arm, and bottom of shock with mounting screw, two (2) flat washers, two (2) spring washers, two (2) inner link spacers, and locknut. See DETAIL“A” for proper hardware ori- entation. Bracket End of Suspension Arm

Tubular End of

Suspension Arm

NOTE: When installing the tubular end of the NEW sus- pension arm, the beveled washer MUST be placed on the inside and outside of the base frame, with the bevels facing each other.

10.Secure tubular end of the NEW suspension arm as- sembly to base frame with existing mounting screw.

11.Torque suspension arm mounting screw (1/2 x 7- inches) to 85 FOOT pounds (approximately 1,020- inch pounds) and replace plug buttons.

12.Reinstallthegearboxontotheexisting suspensionarm. RefertoREMOVING/INSTALLINGGEARBOXinthis procedure of the manual.

13.Perform one (1) of the following:

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

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

14.Reinstall the drive wheel onto the wheelchair. Refer to REMOVING/INSTALLING DRIVE WHEELS in PROCEDURE 12 of this manual.

15.Repeat STEPS 1-14 for the opposite side of the wheelchair, if necessary.

Tubular End of

Suspension Arm

(STEPS 6,10)

Base Frame

STEPS 4,8, AND 9

Bracket End of

Suspension Arm

Inner Link

Spacer

NOTE: Top of shock and stabi- lizer exploded away for clarifica- tionpurposesonly.Removalfrom base frame is not required.

Mounting

Screw

 

 

 

Flat

Beveled

 

 

Washer

 

 

 

Washer

Hex Nut

Spring Washer

 

(STEPS

Stabilizer Bracket

(STEPS 6,11)

 

6,10)

 

Bottom of Shock

Locknut

 

 

Mounting Screw (STEPS 6,10)

Plug Button (STEP 5)

FIGURE 13 - REPLACING SUSPENSION ARM

78

Page 78
Image 78
Invacare Arrow Tubular End Suspension Arm, Steps 6,10, Bracket End Suspension Arm Inner Link Spacer Mounting Screw