Hatch Lifts

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  • Last update: 23 July 2013

Lenco Hatch Lift Installation/Operation

Due to the many different variables involved with the numerous applications for Lenco hatch lifts, installation is never the same. Here are some general guidelines that can be of assistance:

• _The actuator is most powerful when it is installed vertically at 90 degrees.

• _Lifting capabilities decrease (due to the fact that the force pounds increase) the closer the upper or lower mount is located to the hinge.

• _The further from a vertical position the less lifting capability. When retracted, Do Not position hatch lift at an angle less than 45 degrees.

• _Dual hatch lift systems are recommended for hatches over 500 pounds (226.79 kg) of force.

• _Lenco hatch lifts are designed around a ball screw that spins freely when hatch is fully open or closed.

• _The hatch lift must be allowed to free spin at both ends of its stroke or it will continue to push or pull against any resistance potentially damaging the hatch lift or the hatch itself.

• _Failure to make accurate measurements could cause damage to hatch lift or the hatch itself.

• _Lenco hatch lifts are waterproof and will not drift.

• _Lenco hatch lifts are offered in both 12 and 24 volts.

OPERATION

The function of the Lenco Hatch Lift System is simple. Since the hatch lift is based around a ball screw it is able to push a heavy load and remain at a constant position. To raise a load, extend the hatch lift by pressing on the upper part of the switch. To lower a load, retract the hatch lift by pressing the lower part of the switch.

In case of power failure, Lenco hatch lifts are supplied with two clevis pins at the mounting brackets. To pull this pin out while the hatch is closed, you can: A) Rig a cable to pin and rig to a point outside of the hatch. B) Install an inspection plate where the pin will be accessible. C) Install Lenco's hatch lift slide bracket (Part # 70381-001). This will allow you to pull the hatch open 4" (10.16 cm) in order to reach and pull pin.

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Lenco Hatch Lift Mounting

1. _Follow the chart above to figure out load on the hatch lift. maximum load is 500 lbs. (226.79 kg)

                  Y = Total length of hatch

                  X = _Length from the hinge to the hatch lift mounting point

                  W = Weight of the hatch to be lifted

2. _Determine the angle of the hatch lift mount. Do not exceed 45 degrees from center.

3. _Mount the hatch lift on the desired location as per the above instructions. Important: It may be necessary to shim the upper or lower mounting bracket up or down so the hatch does not bind when fully closed. The hatch lift does not stop pulling until it has reached its fully closed position. If the hatch fully closes before the hatch lift is fully retracted, it will cause damage to the lift or the mounting hardware. Shim the hatch lift with stainless washers for small amounts of length. Use Lenco shim part #50015-002 for lengths greater then 1/8" (3 mm).

4. _Wire to switch according to the hatch lift wiring diagram on page 17.

 

SYSTEM PARTS

1   Hatch Lift (electromechanical actuator)  20760-001, 20764-001, 20766-001,20768-001, 20770-001, 20774-001, 20776-001, 20778-001, 20780-001, 20782-001, 20784-001

2   Upper Mounting brackets  50015-001 (118)

3   Lower Mounting bracket  50014-001 (119)

4   Clevis pins   60101-001 (121SS)

5   Single rocker switch for single HL application  15096-001 (optional)

6   Single rocker switch for twin HL application   15098-001 (optional)

7   Shim - 7˚   50015-002 (118S) (optional)

8   Slide bracket   70381-001 (HLSB) (optional)

 

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