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Spline:
• Required minimum push load 200 N on the actuator to allow inward movement
(otherwise the spline can be activated)
(picture 1).
• Required activation pull force during inward operation:
<100 N to activate the ratchet spline to avoid squeezing situations
(picture 2).
• For QR versions: Force required to manually activating spline (actuator not in operation):
Static pull force = 300 - 550 N. For manual pull out (extend) of the inner tube
(picture 3).
Push:
200 N
(Ratchet spline for HP and PL versions)
Pull:
< 100 N
(Ratchet spline for HP and PL versions)
Pull:
300 - 550 N
(Ratchet spline for QR versions)
Damper function:
The LA40 QR can be equipped with an internal damper mechanism. The damper inside the LA40 provides a slower lowering speed, compared to the
normal QR lowering speed which is faster.
When the QR is activated, with the existence of a certain amount of push load, the spindle rotation speed will engage the Damper mechanism and
will start a slower lowering. The speed when the damper is activated will be load dependent and the damper is only acting as an extra friction when
QR-lowering is activated.
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