Larson Electronics LM-21-9.1-4S-EW User manual

21 Foot Telescoping Light Mast - 9' to 21' Stationary Four Stage Light Tower - 360° Rotating
Boom
LM-21-9.1-4S-EW
Please see last page for supporting documentation for this product(certificates, CAD files & drawings, IES
files, wiring diagrams, etc).
LM-21-9.1-4S-EW Four Stage Telescoping Light Tower Quick Summary
Length: 9.17` - 21.125` 9.1` to 21` Light Mast
Weight: +-1,200 lbs Steel Construction
Capacity: 1500 lbs Power Coated Finish
Materials: Steel 125 mph Wind Resistance
Finish: Powder Coated Manual or Optional Electric Operation
Operation:1,500lbs Electric Winch UL 508A
Winch Voltage:120V or 240V AC 50/60 Hz
Cable:1/4" Aircraft Cable
Mounting: 1/2" thick, 28"x28" Six Bolt Hole Bracket Special Orders- Requirements
Ancho Bolts:(6) 1" Anchor Bolts (not included) Contact us for special requirements
Shipping: Common Freight Toll Free: 1-800-369-6671
Shipping Dimensions:16.5`-L x 4`-W x 5`-H Intl: 1-214-616-6180
Shipping Weight: +-2000 lbs Fax: [phone]
Options: Length- Mounting-Fixtures/ Call Us for Special Requirements E-mail: [email protected]
The customer ships the failed light mast to Larson Electronics at their expense. If the failure
is a manufacturer defect, we will repair and/or replace the unit.
This unit is Made In USA - Manufactured in Texas
The Larson Electronics LM-21-9.1-4S-EW fixed mount 4-stage light mast provides a safe
and effective way for operators to quickly deploy lights, security cameras and other
equipment to elevations up to twenty-one feet. This stationary light tower features a
rotating boom that allows for 360° of rotation and a removable mast head for storing
mounted equipment when not in use.
*PLEASE NOTE: ANY FREE SHIPPING OFFERS DO NOT APPLY TO LIGHT MASTS OR
LIGHT TOWERS*
This telescoping three stage steel light mast from Larson Electronics’ is designed
to allow operators to quickly and safely deploy lighting, cameras, and other
electrical equipment in locations where this equipment must be elevated to
heights up to 21` for effective coverage. This light boom can be extended to 21`
for maximum area coverage and collapsed to 9.1` for applications where a
footprint smaller is required. The tower is constructed of square steel tubing with a
lower section 6.18` in length and 10" by 10" by 3/8" thick, second section 6.27`
in length and 8" by 8" by 3/8" thick, third section 6.45` in length and 6" by 6" by
3/8" thick, and an upper section 8.45` in length and 4" by 4" by 1/2" thick. Each
section has 2` of overlap. The mast is extended to its full height via using an
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Larson Electronics LLC
9419 E US HWY 175, Kemp, TX 75143
Phone: [phone]
www.LarsonElectronics.com
Email: [email protected]
Fax: [phone]

included 1,500 lbs rated electric winch with 1/4" cable.
Click Image to Enlarge Click Image to Enlarge Click Image to Enlarge
The LM series of towers are powder coated with glossy blue finish for corrosion
resistances and aesthetics. These light masts are typically mounted to trailers or
other stable surfaces via a 28" by 28", 1/2" thick mounting base-plate which has
been drilled to accept six 1-1/4" anchor bolts. Two 3" by 6" by 1/4" thick skid
pockets at the base of the mast aid in transportation and installation of the mast.
When fully collapsed, the top stage has 24" extending from the second stage,
allowing operators to mount larger equipment without having to dismount when
collapsed.
The LM family of telescoping towers feature a proprietary mast guidance system,
which provide increased stability during high winds. When lowered to 9`, the mast
can withstand winds up to 125 mph. When elevated to its full upright position, the
mast can be rotated a full 360°. By loosening the T-Handle, operators can rotate
the mast with easy in either direction. The mast can be positioned in any direction
and locked back in place by re-tightening the T-handle. The mast itself spins freely
with easy, and can typically be rotated with a single hand.
The electric winch on this mast is offered in 120V or 240V AC 50/60 HZ. Additional
voltage options are available at an additional charge. Larson Electronics can offer
single phase and three phase AC winches, or low voltage DC winches.
This light tower weighs approximately 1,200 lbs, can easily support and lift 1,500
lbs. The entire tower assembly is shipped via common freight carrier and when
shipped measures approximately 16.5 feet long, 4 feet wide, 5 feet tall and
weighs approximately 2000 lbs. Larson Electronics can custom tailor these units to
the customer’s requirements with longer sections and larger mounting plates. For
example, the LM-30-3S is another model that reaches to a length of 30 feet, with
a 14 foot lower section, 12 foot middle section, and a 8 foot upper section and a 4
foot wide upper mounting bracket. We also offer a choice of either the manual
1,000 lbs hand winches included standard or optional electric winches.
Suggested Applications: Temporary lighting, construction sites, and security
camera deployment. We can equip this mast with 1000W or 1500W Metal Halide
lights or a wide variety of high powered LED lights with comparable power,
including the LED10WSA-160, LEDLB-200X2E, LEDLB-160X2E or LEDLB-80x2E.
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Larson Electronics LLC
9419 E US HWY 175, Kemp, TX 75143
Phone: [phone]
www.LarsonElectronics.com
Email: [email protected]
Fax: [phone]

Frequently Asked Questions (FAQ)
3
Larson Electronics LLC
9419 E US HWY 175, Kemp, TX 75143
Phone: [phone]
www.LarsonElectronics.com
Email: [email protected]
Fax: [phone]

4
Larson Electronics LLC
9419 E US HWY 175, Kemp, TX 75143
Phone: [phone]
www.LarsonElectronics.com
Email: [email protected]
Fax: [phone]

5
Larson Electronics LLC
9419 E US HWY 175, Kemp, TX 75143
Phone: [phone]
www.LarsonElectronics.com
Email: [email protected]
Fax: [phone]

6
Larson Electronics LLC
9419 E US HWY 175, Kemp, TX 75143
Phone: [phone]
www.LarsonElectronics.com
Email: [email protected]
Fax: [phone]

7
Larson Electronics LLC
9419 E US HWY 175, Kemp, TX 75143
Phone: [phone]
www.LarsonElectronics.com
Email: [email protected]
Fax: [phone]

Options:
LM-21-9.1-4S-EW-Winch Voltage
Example: LM-21-9.1-4S-EW-120V
Winch Voltage
120V -120V
240V -240V
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Larson Electronics LLC
9419 E US HWY 175, Kemp, TX 75143
Phone: [phone]
www.LarsonElectronics.com
Email: [email protected]
Fax: [phone]

Links (Click on the below items to view):
- Dimensional Drawing 2D
- Operations Manual
- STEP File (3D CAD Model)
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- ISO 9001 Certification
- Business Certificate
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Larson Electronics LLC
9419 E US HWY 175, Kemp, TX 75143
Phone: [phone]
www.LarsonElectronics.com
Email: [email protected]
Fax: [phone]