Larson Electronics LM-20-3S-EW-LV Manuel utilisateur

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LM-20-3S-EW-LV Larson Electronics LLC 1

READ BEFORE USING OR INSTALLING!

Read instructions carefully before attempting to install the mast or operate

the mast winches. Failure to comply with instructions and guidelines could

result in serious or fatal injury, as well as void any warranty. Retain these

instructions for future reference.

1. Position the unit in its desired location. Ensure that the unit is

completely level and then anchor the unit using the mounting holes

located at the bottom of the base. When picking a location, ensure

the mast is free and clear from any overhead obstructions.

2. Put the mast head on with customer provided equipment.

3. Once the mast head with customer provided equipment is installed,

you are ready to put power to the unit. This unit runs off of 12VDC.

The 12VDC must be constant. This unit has a provided line in.

Connect the white wire to your positive and the black wire to your

negative. The red and green wires are for customer use and are not

tied to any source in the control box.

4. You are now ready to use the unit. Locate the control box on the

side of the unit. The lower right switch controls the power to the

whole unit. Turn that switch to the up (on) position.

5. To fold the mast up in the vertical position:

•Remove the mast retaining pin located at the bottom of the

mast.

Instruction Manual

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LM-20-3S-EW-LV Larson Electronics LLC 2

•Make sure the upper left switch is in the “Fold up” position.

•Make sure the lower left switch is in the “Lower Winch”

position.

•Locate the upper right switch labeled “Run” and “Lower Winch

Control”.

•This is a momentary switch that only toggles up. This switch is

designed to stop the winch, when you let off of the switch.

•Toggling the momentary switch up, and holding it, the mast will

begin to rise from the folded over position.

•Once the mast reaches its vertical position, a sensor will make it

stop, and then briefly back off. This is by design, do not be

alarmed.

•Re-insert the mast retaining pin. Once you have reached that

point, you are ready to extend the mast.

Important!The winch is designed for intermittent use only.

Continuous running in excess of 3 minutes can damage the winch

motor. Allow a 20 minute cooling off period before continuing use.

Continuous use without a cooling off period will cause overheating

and damage the motor.

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LM-20-3S-EW-LV Larson Electronics LLC 3

6. To extend the mast:

•Make sure the lower left switch is in the “Upper Winch”

position.

•Locate the provided hand control/pendant switch.

•The hand control plugs into a whip coming out of the bottom of

the control box.

•Once the hand control is plugged in, you are now ready to

extend the mast.

•Put the hand control in the “out” position

•Press the button that says “run” in order to

extend the mast to the desired height. Letting

off of the “run” button will stop the mast.

•Once the unit reaches its maximum height it

will hit a sensor and retract for 3 seconds. This

will prevent the mast from over extending.

Once you have reached that point, the unit is

installed.

Important: The winch is designed for intermittent

use only. Continuous running in excess of 3

minutes can damage the winch motor. Allow a 20

minute cooling off period before continuing use.

Continuous use without a cooling off period will

cause overheating and damage the motor.

7. To retract the mast:

•Make sure the lower left switch is in the “Upper Winch”

position.

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LM-20-3S-EW-LV Larson Electronics LLC 4

•Locate the provided hand control/pendant switch.

•The hand control plugs into a whip coming out of the bottom of

the control box.

•Once the hand control is plugged in, you are now ready to

retract the mast.

•Put the hand control in the “in” position.

•Press the button that says “run” in order to retract the mast.

Letting off of the “run” button will stop the mast. Once the mast

is all the way down, let off of the “run” button.

•Once the cable goes slack, stop immediately. Do not allow the

winch to “free spool”.

Important: The winch is designed for intermittent use only.

Continuous running in excess of 3 minutes can damage the winch

motor. Allow a 20 minute cooling off period before continuing use.

Continuous use without a cooling off period will cause overheating

and damage the motor.

8. To fold the mast down in the horizontal/folded position:

NEVER FOLD THE MAST OVER WITH IT EXTENDED

•Remove the mast retaining pin located at the bottom of the

mast.

•Make sure the upper left switch is in the “Fold Down” position.

•Make sure the lower left switch is in the “Lower Winch”

position.

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LM-20-3S-EW-LV Larson Electronics LLC 5

•Locate the upper right switch labeled “Run” and “Lower Winch

Control”.

•This is a momentary switch that only toggles up. This switch is

designed to stop the winch, when you let off of the switch.

•Toggling the momentary switch up, and holding it, the mast will

begin to fold over from the vertical position.

•Once the mast reaches the horizontal position, let off of the

momentary switch. Do not allow the mast to lay further than a

90 degree angle.

•Re-insert the mast retaining pin.

Important!The winch is designed for intermittent use only.

Continuous running in excess of 3 minutes can damage the winch

motor. Allow a 20 minute cooling off period before continuing use.

Continuous use without a cooling off period will cause overheating

and damage the motor.

9. Using the lower right switch, turn the power to “off”.

10. You can now disconnect from the power source.

9419 US-HWY 175

Kemp, TX 75143 USA

P: 800-369-6671 | INTL: 903-498-3363 F: 903-498-3364

sales@larsonelectronics.com

www.larsonelectronics.com

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