SkyTrak 10054

Staff | September 28, 2010

Long before it became part of JLG Industries, McConnellsburg, Pa., the SkyTrak product line was the largest selling brand of telehandlers in North America. Under JLG's ownership, SkyTrak continues to hold its place at the top. From its rugged, unitized steel frame and industry- leading stability system to its widely used attachment system and straightforward controls, this utilitarian machine was designed to be simple, reliable, and easy to operate.

The SkyTrak 10054's cab is an open design and provides good operator visibility.

Two large joysticks are used to operate the machine, and for ultimate simplicity, they are cable-activated and full-pressure hydraulic. Identification and operation of these Spartan, yet effective, controls are virtually child's play.

All SkyTrak machines come standard with the widely used TRAK-Attach system. This attachment system is prevalent in the market, and JLG recognizes it can't control what attachment might be used on its machines. Therefore, it provides a full set of quick-reference load charts in a flipbook format for virtually all commonly used attachments.

The SkyTrak 10054 uses a ZF-supplied, four-speed modulated power-shift transmission and continues the ZF theme through to the axles, which now feature 55° turning angles. The drive train is powered by a 110-hp Cummins QSB 4.5-liter turbocharged engine and turns a variable flow, load-sensing gear pump. The engine lies within the frame as far to the rear as possible, which contributes to the machine's counterweight and helps to hold the GVW to a relatively low 28,123 pounds. Access to the engine and all service points are available from either side of the frame via a pair of adequately sized, swing-out steel panels. Although the hydraulic oil and fuel tanks are adjacent to each other, only the fuel fill is exposed. The oil fill point is hidden under a bolted steel panel. A hydraulically activated, wet-disc system with four independent brakes is located inboard between the differential and planetary drives.

Outriggers feature a radial design and reach out about 45° angles to the chassis. This makes it so that they land about halfway between the sides and front of the machine, which is intended to improve both longitudinal and lateral stability. Similar to the Lull, the outriggers pivot off the front of the chassis, and frame-leveling is allowed once they are in place. With the outriggers in position, 4,000 pounds can be taken to its maximum height of 56 feet and 3,000 pounds to its 39-foot forward reach.

Rear-axle stability is achieved with the patented Stabil-Trak system, which dampens the movement of the axle whenever the boom is above 40°. This system has pretty much set the standard for the industry. An interlock system requires outriggers to be properly loaded before the boom can be extended past 29 feet. All cylinders in the critical load path are fitted with integral load holding valves. Tires are pneumatic and don't require ballast.