Larson Electronics LM Multi Stage Series User manual

ver.0818-1

LM-EW Series Light Masts Larson Electronics, LLC. 1

LM Multi Stage Series

Read instructions carefully before attempting to install or operate the mast.

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 light mast in the desired

location. Ensure that the unit is

completely level and anchor the light

mast using all six (6) mounting holes

located on the base. This will require

six (6) 9/16" bolts. When picking a

location, ensure the mast is free and

clear from any overhead obstructions.

2. (If applicable) Attach equipment to

mast head. Use appropriate

measures for securing attached

devices. Drill thru-holes as necessary.

Do not exceed weight capacity

listed on nameplate!

3. Install mast head. See mast head

installation steps.

MAST HEAD INSTALLATION:

With the mast folded over, install light

head. Use additional help with heavy

equipment installed.

4. Remove the retaining pin from the

base of the mast and set aside.

5. Use the "FOLD DOWN/FOLD UP"

switch turned to the FOLD UP position

to raise the mast to the upright position.

When fully upright, the mast will depress

the sensor switch found at the base.

This will allow the mast to be raised.

6. Replace thepin removed earlier!

This retaining pin will prevent the

mast from falling over should the

winch cable fail.

7. Mast must be level! Use a bubble

level to level the mast before

extending!

8. Use the "RETRACT/EXTEND" switch

on the control panel turned to the

EXTEND position to raise the mast to

desired height. Winch will stop when

mast reaches max height.

Do not force the winch any further

passed its stopping point!

WARNING: Ensure the mast retaining pin

is installed at the base of the mast before

elevating!

MAST HEAD INSTALLATION:

See Light Head Installation Section.

4. Use the "RETRACT/EXTEND" switch

on the control panel turned to the

EXTEND position to raise the mast to

desired height. Winch will stop when

mast reaches max height.

LIGHT MAST OPERATION

EXTEND MAST

FOLD OVER MODELS

NON-FOLD OVER MODELS

Pg. 3

ver.0818-1

LM-EW Series Light Masts Larson Electronics, LLC. 2

1. To lower the mast, use the same

switch in the RETRACT position until

mast reaches desired height or

bottoms out. Do not leave excessive

slack on the winch cable.

WARNING: Power cables can become pinched or tangled around light

mast while lowering or rotating. Take caution in keeping cables clear.

2. Once mast is lowered, remove the

retaining pin from the base of the

mast and set aside. This pin must be

removed before folding the mast!

3. Use the "FOLD DOWN/FOLD UP"

switch turned to the FOLD DOWN

position to fold the mast back to the

horizontal position. Do not leave

excessive slack on the winch cable.

4. Replace the retaining pin on the base

of the mast removed in Step 2.

WARNING: Ensure mounted equipment

does not exceed weight capacity listed on nameplate!

LOWER MAST

FOLD OVER MODELS

FOLD OVER MODELSFOLD OVER MODELS

Some models of Larson Electronics' masts are so lightweight that they

do not have a spring to assist in folding over. These are known as push

over models.

Push over models must be manually folded over with and without a

headload.

FOLD OVER MODELSFOLD OVER MODELS

PUSH OVER MODELS

In order for the spring on fold over models to activate, a headload of at

least 15 lb is required.

If the spring does not activate due to insufficient headload:

1. Unwind the fold over winch two times.

2. Apply pressure to help the mast fold over.

3. Resume cranking the winch to lower the mast.

FOLD OVER MODELSFOLD OVER MODELS

FOLD OVER MODELS - TROUBLESHOOTING

The mast can be rotated while lowered or elevated.

1. Loosen bolt(s) located toward

center collar of light mast.

2. Rotate mast to desired angle.

3. Tighten bolt(s) in order to secure

mast in place.

When using power cables, minimize full 360° rotation to prevent tangling

cord around light mast. Ensure cables are not in the way or tangled when

lowering mast!

ROTATING MAST (If applicable)

ver.0818-1

LM-EW Series Light Masts Larson Electronics, LLC. 3

The light mast ships with the light head / T-head removed to prevent

damage during transport. Follow the steps below for installing or removing

light head.

1. Locate light head. Color, style, and mounted lights will vary.

2. The light head is equipped with a T-

Handle / Hand Screw.

3. Make sure the hand screw is loose, to

allow the head to slide over the top

stage of the mast.

MAST HEAD INSTALLATION

COLOR MAY VARY

4. Using a pair of slings, wrap both slings around the light head in between

the lights on both sides.

5. Attach the slings to a forklift or other lifting device.

6. With 2 people holding the light head steady, slowly raise the light head

above the mast.

7. A ladder will need to be placed on both sides of the mast, in order for 2

people to guide the head in to place.

8. Once the light head is on top of the light mast, tighten the T-Handle to

ensure the light head is safely secured to the top of the mast.

9. Make the electrical connections for the

lights. Repeat this process in reverse

order for removing the light head.

10. Proceed to the OPERATION MANUAL for operating the unit.

Slings are recommended for installing heavy loads and to ensure operator

safety. Should other methods be used, Larson Electronics shall not be held

responsible for damages or personal injuries.

ver.0818-1

LM-EW Series Light Masts Larson Electronics, LLC. 3

9419 US-HWY 175

Kemp, TX75143 USA

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

[email protected]

www.larsonelectronics.com

NOTES

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