Center Of Gravity Adjustment - Lifestand LSA Series Owner's Manual

LSA
1.3.3

Center of Gravity adjustment

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WARNING!
Increasing or decreasing the Seat Depth can relocate the center of mass of the person in rela-
tion to the chair, and therefore the overall system's Center of Gravity. The end result is that
the chair may become more or less stable depending on if it has become shorter or longer.
After adjusting, it may now be necessary to move the rear wheel mount fore or aft to compen-
sate for this change.
To make this adjustment, loosen and remove the two rear wheel mount attaching bolts and
nuts (with attached connecting tube) on either side of the wheelchair frame (four bolts total)
(See fig below).
After the adjustment has been made, replace and retighten the attached bolts and nuts.
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CAUTION!
If the rear wheel mounts and connecting tube are moved forward on the frame, the chair's
Center of Gravity will move toward the rear, making the front end lighter/easier to tip backward.
If the rear wheel mounts and tube are moved rearward on the frame, the Center of Gravity will
move forward, making the front end more stable.
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WARNING!
Any time an adjustment is made to the rear wheel mounts, the balance and operating charac-
teristics of the wheelchair will be altered. Caution should be taken when the client once again
operates the wheelchair paying special attention to the new balance of the wheelchair.
Rear wheel
Fore-Aft
Adjustment
17
User's Manual.