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15. LA40 (MEDLINE
®
CARELINE
®
)
Recommendations
• 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.
• Connection bolts must be dimensioned so that they have the necessary strength and tolerance 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/collapse of the actuator. The actuator must never be used as a handle.
• The actuator must not be subject to off-centre loading, as this can cause bending/collapse of 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 actuator and in the worst case cause damage to the actuator.
• The actuator must never be used in dynamic pull applications, as this can cause collapse.
• Only use the actuator within the specifications.
• Connection bolts and brackets are to be inspected in connection with service, and must be replaced if there are signs of wear.
• Ensure that the cable lock is mounted correctly.
• Ensure that the duty cycle and the usage temperatures for LA40 actuators is respected.
• Ensure that the cable cannot be squeezed, pulled or subjected to any other stress.
• The LA40 is not suitable for use in outdoor applications where it can be exposed to sun and rain.
• LA40 with mechanical endstop - a first failure safe option:
In many applications customers have approvals in accordance with EN 60601-1. The typical applications are beds, massage couches etc. The norm
EN 60601-1 states that the application must be first failure safe. The manufacturer has the responsibility of carrying out a risk analysis in order to
check this. If a risk is identified, the application manufacturer must ensure that this risk is eliminated. A switch cannot be first failure safe.
• If there is a risk of “pull forces” in the application, the actuator must be equipped with spline functionality to avoid damage in pull.
• Patient lift and stand aids:
- Long installation dimension: must always be used for patient lifts
- Do not hold the inner or outer tube while the actuator is running. There can be a risk of squeezing between the manual lowering unit and the outer tube.
- Always use the ratchet spline functions for patient lifts.
• LA40 8000 N PL actuators for patient lifts are marked with a label to ensure that the user is aware that it is not allowed to pull the
actuator or otherwise expose it to side forces when handling the patient lift.
The LA40 is a low noise and powerful actuator which is available in a 1500 N,
4000 N, 6000 N and an 8000 N version.
With the LA40, LINAK offers a new durable actuator with high speed/high
performance and mechanical endstop for first failure safety making it the right
choice for the future market. The LA40 versions are rated up to IPX6 Washable
DURA
TM
, except for the LA40 PL version which is rated up to IPX6.
The LA40 8000 N is available in three versions:
- Standard
- High Performance (HP)
- Patient Lift (PL)
Usage:
• Duty cycle: 10 %, 2 minutes continuous use, followed by 18 minutes not in use
• Usage temperature: 5
o
C to 40
o
C
• Storage temperature: -10
o
C to 50
o
C
• Relative humidity: 20 % to 90 % @ 30
o
C - not condensing
• Atmospheric pressure: 700 to 1060 hPa
• Flammability rating: UL94V-2
• Approvals: IEC 60601-1, ANSI/AAMI ES60601-1,
CAN/CSA-C22.2 No 60601-1
Warning
• The installation of spline actuators is recommended by LINAK where possible to avoid the squeezing of body parts.
• The installation of Manual Lowering (ML) is recommended by LINAK where possible to avoid the squeezing of body parts.
• Activation of a quick release can lead to a risk of squeezing body parts. Installation of a damper may reduce this risk.
• A quick release can accidentally be activated during mounting or maintenance. To avoid this, operators must be warned before service/mounting.
• End of life issue: defective switches - endstop:
If the electrical endstop switch for outward operation fails, it may cause a prolonged actuator stroke and in addition the customer application may
collapse. To avoid this, the manufacturer must take this into account when designing and making a risk analysis.
• If electrical endstop fails to function the actuator will continue to retract or extend until mechanical endstop is reached.
The application of the customer must be able to obtain or withstand an actuator with failing electrical endstop.
Minimum length of actuator reaching mechanical endstop: BID - 7 mm.
Maximum length of actuator reaching mechanical endstop: BID + SL + 7 mm.
• If the actuator does not work as described above, the risk of injury due to squeezing can arize. Therefore, the actuator must immediately be sent
for service at the nearest, authorised LINAK workshop.
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