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538/538 LL Forest Machine

Efficiency

  • Engine, hydraulics, and work tool integration are optimized to minimize power losses and increase overall machine efficiency
  • Steady state high idle speed and U.S. EPA Tier 4 Final technology reduces fuel consumption
  • Larger hydraulic pump allows engine to operate at lower rpm with increased performance to maximize efficiency
  • Component layout and back-to-back main hydraulic control valve reduces oil flow restrictions and aids in greater fuel economy
  • Machine designed for integration and optimization with SATCO® work tools and Cat® grapples
  • Powerful, multi-functioning hydraulics, combined with strong machine performance ensure work tools function quickly and fluidly to complete work faster

Performance

  • Cat C7.1 ACERT™ Tier 4 Final engine with increased horsepower maintains maximum performance under load
  • Strong hydraulic horsepower for efficient implement performance and greater productivity
  • An increase in swing torque of 18 percent, provides added power to move trees, which enables more efficiency and productivity
  • Heavy lift mode features increased lift capacity to handle larger payloads with improved control

Stability

  • Wider undercarriage, by 203 mm (8 in), improves stability for increased lift and swing capabilities
  • Heavy duty counterweight as standard equipment ensures machine platform is stable in varied applications

Application Versatility

  • Boom arrangements and hydraulic systems for specific applications enable more effective road building, loading, processing, shoveling, or millyard stacking
  • New track options meet shovel logging and low ground pressure application requirements
  • Ground saw hydraulics are available for log loader applications
  • Purpose built processor cab that includes 19 mm (0.75 in) front windows

Reliability and Durability

  • Variable pitch, reversing cooling fan maintains optimum fluid temperatures in heavy duty forestry applications
  • Cooling capability increased 12 percent for trouble-free operation
  • High-wide carbody features double-supported carrier rollers, reinforced idler mounts, heavy-duty top hat, extra gussets, and thick doubler plates for structural integrity in severe applications
  • Larger 203 mm (8 in) pitch Positive Pin Retention 2 links (329 HEX) provide greater life in variable forestry working conditions
  • Purpose-built upper frames provide increased life with box section members, thick doubler plates, reinforced swing drive mounts, rugged door components, and 5 mm (0.2 in) sheet metal
  • Linkage configurations incorporate internal baffle plates, large box sections, and thicker plating to increase service life
  • Validated and proven excavator technologies ensure overall machine reliability

Serviceability

  • One-piece engine hood design, with two opening angles, allows easy access to engine and cooling compartments
  • Side-by-side engine and hydraulic coolers provide easy access for cleaning, while reduced cooling fins per inch allows better debris flow-through to reduce clogging potential
  • 0.28 m3 (10 ft3) of storage space at ground level, gives ready access to tools, equipment, and supplies that operators use daily

Operator Comfort and Technology

  • Fully adjustable, air ride cab seat that includes heating and cooling capability for comfort and reduced operator fatigue
  • LED lights increase visibility
  • Cat Product Link™ allows for remote location of a machine and enables tracking of fuel consumption and other events

Work Tools

  • Both machine models are optimized for a wide variety of processing and harvesting heads, grapples, heels, quick couplers, and thumbs
Engine
Engine Model Cat C7.1 ACERT
Net Flywheel Power 122 kW (164 hp)
Gross Power at 1,800 rpm 122 kW (164 hp)
Engine Speed: Operation 1500 rpm (1500 rpm)
Engine Speed: Travel 1500 rpm (1500 rpm)
Engine Speed: Travel (maximum load) 1800 rpm (1800 rpm)
Displacement 7.01 L (427.8 in3)
Number of Cylinders 6
Weights
Estimated Operating Weight without Attachment: 538 (General Forestry, Reach) 30227 kg (66639 lb)
Estimated Operating Weight without Attachment: 538 LL (Log Loader, U/U) 31558 kg (69573 lb)
General Forestry (HW) 30227 kg (66639 lb)
Service Refill Capacities
Fuel Tank u2013 CWT 410.0 L (108.3 gal)
DEF Tank 28.0 L (7.4 gal)
Engine Crankcase 25.0 L (6.6 gal)
Cooling System 29.8 L (7.9 gal)
Final Drive u2013 Each 8.0 L (2.1 gal)
Hydraulic Tank 143.0 L (37.8 gal)
Hydraulic System u2013 Total 159.0 L (42.0 gal)
Swing Drive 8.0 L (2.1 gal)
Hydraulic System
Main Pumps Maximum Flow (per pump) 212 L/min (56 gal/min)
Main Pumps Maximum Flow (both pumps) 424 L/min (112 gal/min)
Maximum System Pressure: Implements 35000 kPa (5076 psi)
Maximum System Pressure: Travel 35000 kPa (5076 psi)
Maximum System Pressure: Swing 31000 kPa (4496 psi)
Maximum System Pressure: Heavy Lift Mode 38000 kPa (5511 psi)
Auxiliary Pump u2013 U/U and O/U (538 LL): Maximum Flow 45 L/min (12 gal/min)
Auxiliary Pump u2013 U/U and O/U (538 LL): Maximum Pressure 10335 kPa (1499 psi)
Auxiliary Pump u2013 Grapple Rotate (538) / Power Clam (538 LL): Pump Drive Gear Ratio 1.28:1
Auxiliary Pump u2013 Grapple Rotate (538) / Power Clam (538 LL): Maximum Flow 121 L/min (32 gal/min)
Auxiliary Pump u2013 Grapple Rotate (538) / Power Clam (538 LL): Maximum Pressure 10335 kPa (1499 psi)
Operating Specifications
Maximum Speed (Turtle) 2.6 km/h (1.6 mph)
Maximum Speed (Rabbit) 4.3 km/h (2.7 mph)
Maximum Drawbar Pull 272 kN (61148 lb)
Swing Torque u2013 538 (GF) 73.2 kNu2219m (54000 lb ft)
Swing Torque u2013 538 LL 73.2 kNu2219m (54000 lb ft)
Maximum Swing Speed u2013 538 (GF) 11.0 rpm (11.0 rpm)
Maximum Swing Speed u2013 538 LL 11.0 rpm (11.0 rpm)
Undercarriage
Undercarriage Pitch 202.8 mm (8.0 in)
Track Gauge 2790.0 mm (109.8 in)
Track Length 4576.0 mm (180.2 in)
Ground Clearance 659.5 mm (26.0 in)
Weights
Estimated Operating Weight without Attachment: 538 LL (Log Loader, O/U) 31480 kg (69401 lb)
Dimensions: General Forestry u2013 538 (boom stretched out)
Height of Tilted Side Entry Cab 3225 mm (127.0 in)
Boom Height 3697 mm (145.6 in)
Overall Height 3901 mm (153.6 in)
Overall Length (Processor) 12192 mm (480.0 in)
Tail Swing Radius 2789 mm (109.8 in)
Distance Between Idler and Sprocket Centerline 3725 mm (146.7 in)
Track Length 4576 mm (180.2 in)
Ground Clearance 660 mm (26.0 in)
Track Gauge 2790 mm (109.8 in)
Width with 700 mm (28 in) Shoes 3490 mm (137.4 in)
Dimensions: Log Loader u2013 538 LL (boom stretched out)
Height of Tilted Side Entry Cab 3142 mm (123.7 in)
Boom Height 2323 mm (91.5 in)
Overall Height 4578 mm (180.2 in)
Overall Length (U/U) 13485 mm (530.9 in)
Tail Swing Radius 2789 mm (109.8 in)
Distance Between Idler and Sprocket Centerline 3725 mm (146.7 in)
Track Length 4576 mm (180.2 in)
Ground Clearance 660 mm (26.0 in)
Track Gauge 2790 mm (109.8 in)
Width with 700 mm (28 in) Shoes 3490 mm (137.4 in)

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