TiLite Rigid Aero Z Series, Owner'S Manual

Page: 87 / 102

TiLite ® OM000007 - Rev. B
79
Figure 110
Caster Barrel Angle Adjustment
Figure 112
Squaring up the ZRA/Aero Z Angle Adjustable
Mounting Fork
Figure 111
ZRA/Aero Z Angle Adjustable Fork
Bolt
Locknut
Flat Edge
Turn To
Rotate Fork
Triangle
Bearing
Fork
Level Surface
Receiver
Fork
Fork
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9 9
8
7
6
5
4
3
2
1
1
2
3
4
5
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8
9
Figure 54
Figure 55
Figure 56
Drafting
Triangle or
Equivalent
Locking
Block
U-Clamp
Caster
Barrel
Allen Screws
Level Surface
Caster
Barrel
Tab
Adjustable Angle Caster Barrel
(YG Series, TRA, YRA and Evo)
WARNING
Always make sure the grooves in the locking block are
properly aligned with the grooves in the caster barrel
tab. If these grooves are not properly aligned, the
grooves may become worn, causing the front caster
angle to change unexpectedly. If you ignore this
Warning, you may fall, tip over or lose control of the
wheelchair and seriously injure yourself or others or
damage the wheelchair.
Adusting the Angle
Tools Needed:
• 5/32” Allen Wrench
1. Place the chair on a level surface.
2. Loosen, but do not remove, the two Allen Screws that
hold the caster barrel tab in place against the U-
Clamp. Note:
It is necessary to loosen the top screw
more than the lower screw in order to permit the
locking block to disengage from the caster barrel tab.
See Figure 110.
3. Using a drafting triangle or similar 90º angle tool as
shown in Figure 110, rotate the caster barrel until the
straight edge of the caster barrel tab is perpendicular
to the level surface.
4. Securely tighten both Allen Screws, making sure the
grooves in the locking block are properly seated in
the grooves in the caster barrel tab.
5. After tightening the screws, recheck the caster barrel
tab to be certain it is still perpendicular to the ground
before riding.
Angle Adjustable Bearing Fork
(ZRA and Aero Z)
Adjusting the Angle
Tools Needed:
• 7/16” Open End Wrench
• 5/32” Allen Wrench
1. Place the chair on a level surface.
2. Loosen the locknut while keeping the bolt from
rotating. Note: It is only necessary to loosen (not
remove) the locknut to allow the bolt to be easily
turned with an Allen Wrench. See Figure 111.
3. Turn the bolt to adjust the angle of the fork.
4. Using a drafting triangle or similar 90º angle tool as
shown in Figure 112, rotate the fork until the flat edge
of the fork is perpendicular to the level surface.
5. Using the Allen Wrench to prevent the bolt from
turning (and the angle of the fork from changing), use
the open end wrench to securely tighten the locknut.
6. After tightening the locknut, recheck the fork to be
certain it is still perpendicular to the ground before
riding.
Allen Screw
Locking Handle
Hex Bolt
Base
Turn Bolt to
Rotate Fork