Invacare At'm manual Adjusting Forks

SECTION 10—WHEELS AND CASTERS

ADJUSTING FORKS

NOTE: For this procedure, refer to FIGURE 10.2.

1.Remove the dust covers from the caster headtubes.

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

A.Remove battery pack from wheelchair. Refer to Removing/Installing the Battery Pack on page 35.

B.Tip back the wheelchair to floor.

C.Pivot both forks and casters to top of their arc simultaneously.

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

E.Adjust locknuts according to freedom of caster swing.

F.Bring wheelchair back to driving position.

G.Install the battery pack. Refer to Removing/Installing the Battery Pack on page 35.

3.Test wheelchair for maneuverability.

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

5.Snap dust covers into the caster headtubes.

Dust Cover

Locknut

Washer

Caster Headtube

Fork Stem

Fork

Front Caster

FIGURE 10.2 - ADJUSTING FORKS

Part No. 1125035 41 At’m