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.
Hatch Lifts — Installation/Operation
Lenco Hatch Lift Installation/Operation
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 remove the bolt.
Raise
Hatch
Lower
Hatch
Wiring Single Rocker Switch #15096-001
Power
Ground
Single Rocker Switch for twin hatch lift application also available.
See page 18 for part #.
Hatch lift
S = Short. All part numbers ending in S have
the same stroke but in a 4" (10.16 cm) shorter
length.
12V Part L. O. A. Approx. L. O. A.
Number Retracted Stroke Extended
20760-001 15" 4" 19"
20764-001 20" 8" 28"
20766-001 24" 8" 32"
20768-001 24" 12" 36"
20770-001 29" 12" 41"
20774-001 29" 16" 45"
20776-001 33" 16" 49"
20778-001 33" 20" 53"
20780-001 37" 20" 57"
20782-001 37" 24" 61"
20784-001 41" 24" 65"
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