Invacare T6 manual Adjusting Fork Tension

SECTION 8—WHEELS

Adjusting Fork Tension

NOTE: For this procedure, refer to FIGURE 8.14.

1.To properly tighten forks and guard against flutter, perform the following check on both forks:

A.Tip back the wheelchair to floor.

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

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

2.If necessary, perform one of the following to adjust the fork tension:

• Standard Forks - Adjust locknut according to freedom of caster swing (Detail “A”).

• Suspension Fork (Detail “B”) -

a.Refer to Removing the Elastomer on page 54 to remove the elastomer and suspension fork bottom to access the locknut.

b.Adjust locknut according to freedom of caster swing.

c.Refer to Installing the Elastomer on page 54 to secure the suspension fork top to the elastomer and suspension fork bottom.

3.Test wheelchair for manoeuverability.

4.If necessary, repeat STEPS 1-2 to adjust locknuts until tension is correct for both forks.

DETAIL “A” STANDARD

FORK

DETAIL “B” SUSPENSION FORK

Fork

Locknut

Caster

NOTE: Washer and locknut shown exploded for clarity only. DO NOT remove.

Washer

Locknut

Elastomer

Mounting Screws

Suspension Fork Top

Threaded Bushing

Mounting

Screws

Suspension

Fork Bottom

Caster

FIGURE 8.14 Adjusting Fork Tension

Crossfire™Series Wheelchairs 50 Part No 1148078