JLG SkyTrak 6042 Specifications
The JLG SkyTrak 6042 telehandler is a powerful,
versatile, and highly reliable rough-terrain material handler engineered for
heavy construction, framing, steel erection, masonry support, industrial
material placement, and general job-site operations. With a rated load capacity
of 6,000 lb (2,722 kg) and a max lift height of 41 ft 11 in (12.8 m), the 6042
is designed to deliver strong vertical reach, stable load control, and
exceptional maneuverability across uneven terrain.
SkyTrak telehandlers are known for their
mechanical simplicity, durability, and ease of service, and the 6042
embodies these values through its robust powertrain, advanced hydraulic
system, heavy-duty telescopic boom, and versatile steering modes.
Engine make and model: Cummins QSF3.8L Tier 4 Final
Number of cylinders: 4
Displacement: 229 cu in (3.8 L)
Gross power: 74 hp (55 kW)
Maximum torque: 340 lb-ft (461 Nm) @ 1,400 rpm
Fuel tank capacity: 35 gal (132.5 L)
The Cummins QSF3.8 is a compact, electronically controlled diesel engine known
for strong torque output, low fuel consumption, and excellent durability.
Turbocharging enhances low-end torque performance crucial for lifting
operations, while its high-pressure fuel system ensures clean combustion.
Routine service typically includes periodic filter replacement, coolant
inspection, belt tensioning, and DEF inspection where equipped.
Transmission
Type: Powershift
Forward speeds: 4
Reverse speeds: 3
Top travel speed: 19 mph (31 km/h)
This powershift transmission ensures smooth travel and strong tractive force.
Low gears provide controlled approach to load sites, while higher gears support
efficient cross-site movement.
Axles
- Full-time planetary 4-wheel drive
- Oscillating rear axle with Stabil-Trak system
Planetary axles distribute torque efficiently while withstanding heavy load
stresses. Stabil-Trak enhances lateral stability during boom elevation.
Brakes
- Hydraulically actuated inboard wet-disc brakes
- Emergency brake with transmission declutch feature
Wet discs resist fading and reduce maintenance frequency, ideal for harsh
job-site conditions.
The electrical system is a durable 12-volt industrial
configuration featuring sealed connectors and weather-resistant harness
protection.
Instruments include:
- DEF gauge
- Voltmeter
- Hourmeter
- Engine oil pressure gauge
- Temperature gauge
- Fuel gauge
Lighting packages (optional or standard depending on configuration) include work
lights, road lights, and rotating beacons.
Drive configuration: Full-time 4WD with planetary hubs
Chassis construction is heavy-gauge welded steel engineered for torsional
strength and long service life.
Tires
Standard tires: 370/75-28 pneumatic
Optional: foam-filled or solid tires
These options allow the machine to operate on hard surfaces, rocky terrain, or
debris-dense job sites.
Steering modes:
- 4-wheel circle steering
- 4-wheel crab steering
- 2-wheel front steering
Outside turning radius: 168 in (4.27 m).
Hydraulic system
type:
- Variable-flow, load-sensing hydraulic system
- Load-holding valves on frame level, stabilizer, attachment tilt, extend, and
lift cylinders
- Hydraulic reservoir (implement system) capacity: 45.5 gal (172.2 L)
Boom operation speeds:
- Lift speed: up 14.3 sec, down 10.5 sec
- Boom extend: 17 sec
- Boom retract: 17.2 sec
Rated capacity: 6,000 lb (2,722 kg)
Maximum lift height: 41 ft 11 in (12.8 m)
Load at maximum height: 6,000 lb (2,722 kg)
Maximum forward reach: 27 ft 11 in (8.51 m)
Load at maximum reach: 1,400 lb (635 kg)
Drawbar pull (loaded): 22,000 lb (98 kN)
- Overall length: 234 in (5.9 m)
- Overall width: 99 in (2.51 m)
- Overall height: 102 in (2.59 m)
- Wheelbase: 113 in (2.87 m)
- Ground clearance: 15 in (381 mm)
- Outside turning radius: 168 in (4.27 m)
- Standard pallet forks: 2.36 x 4 x 48 in (60 x 102 x 1200 mm)
- Optional pallet forks: 2.36 x 5 x 48 in; (60 x 127 x 1200 mm)
- Optional pallet forks: 2 x 6 x 72 in (51 x 152 x 1800 mm)
- Operating weight: 25,100 lb (11,385 kg)
Periodic
maintenance includes:
- Engine-oil and filter replacement
- Fuel-filter replacement
- Hydraulic-filter inspection
- Transmission-fluid service
- Axle-lubricant inspection
- Cooling-system flushing
- Boom-lubrication intervals
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