| The Tower | ||
| Height: | Maximum tower height of the tower payload mounting bracket is 80 feet (24.38 meters) deployed from a trailer mount, with stowed height of 11 feet (3.35 meters). The tower can be stopped and utilized at any desired height between its stowed and maximum height. | |
| Lighting Array Payload: |
Maximum tower payload capacity is application dependent. For most applications, however, the payload is established at 2,000 pounds (907 kilograms) for an 80 foot (24.38 meters) tower height. Tower Solutions lighting towers offer various arrays of lights that can be mounted on a lighting frame parallel to the ground. To optimize light distribution, groups of fixtures can be manually aimed in several patterns. Changes in patterns are facilitated by our ability to raise and lower an un-guyed tower in 5 minutes. Lights are controlled in banks of three by circuit breaker switches located in the main electrical distribution panel. The ML-27 lighting tower payload consists of 18 - 1,500 watt lights mounted on fixtures that display 27,000 watts of lighting power. The ML-14 lighting tower payload consists of 9 - 1,500 watt lights projecting 13,500 watts of lighting power. | |
| Construction: | The tower lattice chain sections are constructed of 6061-T6 aluminum assembled with robust bolts and rivets. During deployment, heavy cast stainless steel hooks engage and rigidly attach the individual tower sections together in the triangular shape. Key tower technologies are protected by patents.
Heavy mounting brackets are provided as standard equipment at the top of each of the three corners for attaching customers' equipment using 1/2 inch (1.27 centimeters) diameter bolts. | |
| Deployment & Retraction Speed: |
From the towers stowed height, an electric motor/gear drive system will self-erect the tower to a height of 80 feet (24.38 meters) in approximately 5 minutes "at the push of a button". By releasing the button, the tower can be stopped (and held by the brake) for payload utilization at any height between the stowed and maximum limits. | |
| Drive: | Either an AC or DC electric drive gear motor is offered, both of which include a heavy duty brake that is rated for severe conditions. No active power is required once the tower sections have been raised to the desired height and automatically secured by the brake. | |
| Power Source: | For tower operation, an appropriate AC or DC electrical power source is required only when raising or lowering the tower. This source may be customer supplied power or one of Tower Solutions' available options.
The lighting fixtures require that AC power that can be delivered by customer supplied shore power and/or a Tower Solutions supplied generator set. A choice of 3-phase, diesel powered and water cooled gen-sets, equipped with high temperature and low oil shut- off protection, are offered. Gen-sets are normally sized with excess capacity, so auxiliary 120 volt, 1-phase and 208 volt; 3-phase receptacles are included. | |
| Emergency Crank Down: |
The tower is equipped with an emergency, manual crank down or up system for use if power sources fail. If conditions permit, a customer supplied battery-powered electric drill can be substituted for the crank. | |
| Enclosures: | All electrical controls are enclosed in drip proof enclosures. When included, the generator set is mounted in a drip proof enclosure on the trailer tongue. An optional lockable cabinet type enclosure over the entire tower frame is available. This enclosure protects the bales, cable reels and other components from the environment, while shrouding the three tower section bales, which rotate slowly, exposed within the tower frame, for added safety. | |
| Standard Leveling System: |
A level sensing system notifies the operator with an indicator light when the unit is level within +/- 1 degree. In addition, bubble level units located at each corner of the trailer to further facilitate the unit leveling process. Each unit is leveled with four heavy duty drop-leg, leveling jacks attached to the trailer frame. | |
| Remote Tower Control: |
Tower deployment or retraction is actuated by UP and DOWN buttons located on a corded remote control pendant attached to the main electrical control box. A 25 feet (7.62 meters) long pendant control cord allows operators to strategically position themselves during deployment and retraction of the tower. | |
| Access Catwalk and Ladder: |
Standard access to the customer equipment-payload on a retracted tower is provided by a non-skid catwalk. This catwalk offers access from the back side of the payload from a rear mounted ladder on the trailer. | |
| The Outrigger System | ||
| Description: | The outrigger system consists of four tubular assemblies that attach to the corners of the tower trailer frame and extend jacks out 14 feet (4.27 meters) diagonally from the tower vertical centerline, creating a 16 foot - 8 inch x 22 foot (5.08 meters x 6.7 meters) support pattern.
The outriggers are easily assembled on-site as part of the unit set-up. The outrigger system can accommodate +/- 18 inch (46 centimeters) variance in ground surfaces. When not in use, the outriggers are stored in brackets on the exterior of the tower frame. | |
| The Trailer | ||
| Description: | The tower and outrigger assemblies are mounted on a heavy double axle steel trailer. The trailer is equipped with:
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| General Features | ||
| Color: | The standard unit is delivered with the trailer and mechanism tan in color and the tower in natural aluminum. Standard product identification, instructional, safety and operational information decals are strategically applied to the unit for operator convenience and safety. | |
| Overall Size: | For the ML-27 and ML-14 towers, the retracted footprint is approximately 102 inches (2.59 meters) wide x 11.5 feet (3.5 meters) high, not including the lighting fixture payload. Trailer length and approximate unit weight are dependent on customer requirements. | |
| Options | ||
| Options are available to meet specific customer requirements. | ||
