SECTION 9—WHEELS

Adjusting Caster Assembly

NOTE: For this procedure, refer to FIGURE 9.2.

1.Lift up front edge of the dust cover and remove from head tube.

2.To properly tighten caster assembly and guard against flutter, perform the following check:

NOTE: Two people are recommended to perform this STEP - one to tip wheelchair back and one to inspect/adjust the caster assembly.

A.Tip back the wheelchair.

B.Pivot both caster assemblies to top of their arc simultaneously.

C.Let casters drop to bottom of arc (casters should swing once to one-side, then IMMEDIATELY rest in a straight downward position).

D.Adjust locknuts according to freedom of caster swing.

3.Test wheelchair for maneuverability.

4.Readjust locknuts if necessary, and repeat STEPS 1-3 until correct.

5.Snap dust cover into the caster headtube ensuring that the tabs are under the plastic side shrouds.

Tabs

Dust Cover

 

Locknut

NOTE: Front caster

Side Shroud

shown. Rear caster

Washer

 

installs the same

 

 

way.

 

Caster

 

Base Frame

Headtube

 

 

Washer

 

Fork

 

 

FIGURE 9.2 Adjusting Caster Assembly

Pronto® Series

82

Part No. 1125075

Page 82
Image 82
Invacare M51, M50, M61 service manual Adjusting Caster Assembly