Invacare M71 service manual Adjusting Caster Assembly

SECTION 6—WHEELS

Adjusting Caster Assembly

NOTE: For this procedure, refer to FIGURE 6.2.

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

(Front Edge)

Locknut

Washer

Head Tube

Fork

NOTE: Components exploded for clarity. There is no need to remove the fork from the base frame.

FIGURE 6.2 Adjusting Caster Assembly

Part No 1118377 61 Pronto® M71™