Page 77 of 295
Self-locking ability
• LINAK control boxes are designed so that they will short-circuit the motor terminals (poles) of the actuator(s), when the actuator(s) are not running.
This solution gives the actuator(s) a higher self-locking ability. If the actuator(s) are not connected to a LINAK control box, the terminals of the motor
must be short-circuited to achieve the selflocking ability of the actuator.
The LA44 is available in powerful 10,000 N and 12,000 N versions, ensuring safe patient
handling.
With the LA44 actuator, LINAK offers a product, which with its wide range of safety
options, low noise level, and outstanding performance is the right choice for medical
applications such as patient lifts, beds, dental chairs etc.
Usage
• Electrical spline functionality: Electrical spline; can be combined with manual lowering. The Electrical-spline switch is mounted inside LA44.
It activates on a pulling movement of the slightly moveable back fixture. When using the actuator in a vertical
position, the force needed to activate the electric spline is maximum 100 N + the weight of the application.
To reengage the spline function, a force of maximum 100 N is needed.
• Mechanical spline functionality: When using the actuator in a vertical position, the force needed to activate the mechanical spline is maximum
60 N + the weight of the application. To reengage the spline function, a force of maximum 60 N is needed.
• Duty cycle: 10 %, 2 minutes continuous use followed by 18 minutes not in use
• Usage temperature: 5 ºC to 40 ºC
• Storage temperature: - 10 ºC to + 50 ºC
• Compatibility: Compatible with LINAK control boxes. Please contact LINAK
• Approvals: IEC 60601-1, ANSI/AAMI ES60601-1 and CAN/CSA 22.2 No 60601-1
Recommendations
• The actuator is not suitable for outdoor applications
• Power supply without current cut-off can cause serious damage to the actuator if a mechanical stop is encountered or the actuator movement is
blocked in another way.
• If there is a risk of “pull forces” in the application, the actuator must be equipped with mechanical or electrical spline to avoid damage in pull.
• If the actuator is operated without load (e.g. loose on a table) the electrical spline can activate and the actuator cannot run in an inwards direction.
Push the back fixture and the actuator can be operated again.
• Connection bolts must be dimensioned so that they have the necessary strength in order to obtain the minimum safety factor according to the
requirements of the authorities.
• The actuator must not be subject to a side load, as this can cause bending. It is also for this reason that the actuator should not be used as a handle,
e.g pulling a patient hoist sideways.
• The actuator must not be subject to off centre loading, as this can damage the actuator.
• The actuator must not be subject to impact, or any form of stress to the casing.
• The actuator must not be subject to overload, as this can reduce the lifetime of the actutor and in the worst case cause damage to the actuator.
• The actuator must not be used in pull applications, as this can cause collapse.
• Only use the actuator within the specified working limits.
• It is recommended that the actuator is serviced according to the relevant national norms for the applications in which the actuator is used.
• Connection bolts and brackets are to be inspected in connection with service, and must be replaced if there are signs of wear.
• The safety function: Electrical Spline, should be checked in connection with service. The function is checked by applying a straight pull, of max. 100 N,
to the back fixture. The actuator must not be able to run in an inward direction. Hereafter press the back fixture against the housing and the actuator
can run in an inward direction.
• The actuator should be cleaned regularly, in order to maintain a good hygiene.
LA44 actuators for patient hoists are marked with a label to ensure the user is aware that it is not permitted to handle the patient hoist by
pulling the actuator or otherwise expose it to side forces.
14. LA44 (MEDLINE
®
CARELINE
®
)
To Next Page
Loading...
Need help?
General
