To adjust the working height of the Model AT upward:
1) Loosen the height adjustment locks.
2) Make sure the lift lowering valve is tight (rotate
clockwise to tighten). The manual lift handle is used
for tightening and loosening the lift lowering valve.
3) Place the handle with the notched end over the T-
shaped valve to loosen or tighten.
4) Place lift handle into receiver on lift and pump
handle up and down until the desired height is
reached.
5) Tighten all four height adjustment locks.
6) To lower the table, rotate the T-shaped lowering
valve counterclockwise with the lift handle.
CAUTION: Rotate the lowering valve slowly to provide a
smooth motion. If the table is lowered too rapidly, damage
may result.
After adjusting the table height, lock all telescoping legs in
position by rotating the levers clockwise until tight. To
loosen the height adjustment lock, rotate counter clockwise.
All height lock levers have a ratchet feature. To use the
ratchet feature, pull out on the lever and reposition the
handle where desired.
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