Symptoms and Problems

Locate the heading that is the closest to the problem you are experiencing.  If you are have trouble not addressed here, contact our office and speak with one of our repair representatives.

Back of chair won't hold its position!
"flops back and forth"

Your back adjustment cylinder (part #411888) is worn out and needs replacement.  Print out and complete the order form and fax it to us.

order form
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Seat of chair won't hold its position!
"flops up and down"

Your seat adjustment cylinder (part #411889) is worn out and needs replacement.  Print out and complete the order form and fax it to us.

order form
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Chair loses height!  It won't stay in place!
chair is "bouncy"

Your height adjustment cylinder is worn out and need replacement.  See "Which height cylinder do I need?" for a guide to determine which height cylinder will fit your chair.  Then print out and complete the order form and fax it to us.

order form
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Which height cylinder do I need?

In order to determine the height cylinder you have, return to chair to it's lowest position and measure the height from the floor to the top of the seat cushion.  If this height is

about 17 inches (43.2 cm)
you'll need the short cylinder (part #412286).
about 20 inches (50.8 cm)
you'll need the medium cylinder (part #412097).
about 24 inches (61.0 cm)
you'll need the tall cylinder (part #410789).

To order these height cylinders, print out and complete the order form and fax it to us.

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Chair rocks dramatically from side to side!

The welds on the mechanism (part #411124) are broken.  The entire mechanism needs to be replaced.  Print out and complete the order form and fax it to us.

order form
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Lever won't move up and down!

The level has pushed past the white activators in the mechanism.  It can be pushed back into place.  Just lift the white activators with a screwdriver and push the level until it snaps back into place.  If you need help with this, or are still having trouble, you may want to contact a local dental repair company.

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Click here for replacement part catalog