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Overview

The 558 LL features enhanced performance coupled with ultimate machine efficiency. Cat® components, purpose built upper and lower frames, and application specific linkage configurations increase machine up time and lower machine operating costs.

Engine

Units:
Engine Model Cat C7.1 ACERT Cat C7.1 ACERT Less
Net Flywheel Power 239.0 hp 178.0 kW Less
Gross Power 239.0 hp 178.0 kW Less
Displacement 428.0 in3 7.01 L Less
Gross Power at 2,200 rpm 239.0 hp 178.0 kW Less
Engine Speed: Operation 1750.0 rpm 1750.0 rpm Less
Engine Speed: Travel 1800.0 rpm 1800.0 rpm Less
Number of Cylinders 6 6 Less

Weights

Estimated Operating Weight without Attachment: Log Loader (U/U) 93176.0 lb 42264.0 kg Less
Estimated Operating Weight without Attachment: Log Loader (O/U) 93004.0 lb 42186.0 kg Less

Service Refill Capacities

Cooling System 7.9 gal 30.0 L Less
Swing Drive 2.9 gal 11.0 L Less
Hydraulic Tank 46.2 gal 175.0 L Less
Fuel Tank – CWT 261.4 gal 989.3 L Less
DEF Tank 12.2 gal 46.0 L Less
Engine Crankcase 6.3 gal 24.0 L Less
Final Drive – Each 2.9 gal 11.0 L Less
Hydraulic System – Total 81.9 gal 310.0 L Less

Hydraulic System

Main Pumps Maximum Flow (per pump) 63.4 gal/min 240.0 L/min Less
Main Pumps Maximum Flow (both pumps) 126.8 gal/min 480.0 L/min Less
Maximum System Pressure: Implements 5076.0 psi 35000.0 kPa Less
Maximum System Pressure: Travel 5076.0 psi 35000.0 kPa Less
Maximum System Pressure: Swing 4641.0 psi 32000.0 kPa Less
Maximum System Pressure: Heavy Lift Mode 5511.0 psi 38000.0 kPa Less
Auxiliary Pump – U/U and O/U: Maximum Flow 14.0 gal/min 53.0 L/min Less
Auxiliary Pump – U/U and O/U: Maximum Pressure 1499.0 psi 10335.0 kPa Less
Auxiliary Pump – Bnt/Power Clam: Pump Drive Gear Ratio 1.28:1 1.28:1 Less
Auxiliary Pump – Bnt/Power Clam: Maximum Flow 37.2 gal/min 141.0 L/min Less
Auxiliary Pump – Bnt/Power Clam: Maximum Pressure 1499.0 psi 10335.0 kPa Less

Operating Specifications

Maximum Speed (turtle) 1.5 mph 2.4 km/h Less
Maximum Speed (rabbit) 2.3 mph 3.7 km/h Less
Maximum Drawbar Pull 72164.0 lbf 321.0 kN Less
Swing Torque 86295.0 lbf-ft 117.0 kN∙m Less
Maximum Swing Speed 7.5 rpm 7.5 rpm Less

Undercarriage

Undercarriage Pitch 8.5 in 215.9 mm Less
Track Gauge 115.0 in 2921.0 mm Less
Track Length 199.7 in 5072.0 mm Less
Ground Clearance 29.5 in 749.0 mm Less

Dimensions: Log Loader (boom stretched out)

Height of Tilted Side Entry Cab 137.7 in 3498.0 mm Less
Boom Height 115.0 in 2921.0 mm Less
Overall Height 194.2 in 4932.0 mm Less
Overall Length (U/U) 628.6 in 15967.0 mm Less
Tail Swing Radius 143.8 in 3653.0 mm Less
Distance Between Idler and Sprocket Centerline 158.2 in 4019.0 mm Less
Track Length 199.7 in 5072.0 mm Less
Ground Clearance 29.5 in 749.0 mm Less
Track Gauge 115.0 in 2921.0 mm Less
Width with 700 mm (28 in) Shoes 142.6 in 3621.0 mm Less

Performance

  • Cat 178 kW (239 hp) 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 35 percent on Log Loader models, 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
  • 989 L (261 gal) counterweight fuel tank for extended machine operation and maximum uptime
  • Machine width and track length designed for stability in varied logging applications

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 reduce fuel consumption
  • Larger hydraulic pump allows engine to operate at lower rpms with increased performance to maximize efficiency
  • Component layout and back-to-back main hydraulic control valve reduce oil flow restrictions and aid in greater fuel economy
  • Machine designed for integration and optimization with Cat grapples
  • Powerful, multi-functioning hydraulics, combined with strong machine performance ensure work tools function quickly and smoothly to complete work faster

Application Versatility

  • Boom arrangements and hydraulic systems for specific applications enable more effective road building, loading, processing, shoveling, or millyard stacking
  • New track option meets shovel logging application requirements
  • Two new premium rear entry cab choices, available on the Log Loader, include a 1219 mm (48 in) straight riser or a 1829 mm (72 in) cab forward riser
  • Purpose built processor cab option that includes 19 mm (0.75 in) front windows

Reliability and Durability

  • Variable pitch, reversing cooling fan maintains optimum fluid temperature in heavy duty forestry applications
  • Cooling capacity increased 33 percent for trouble-free operation
  • Purpose built upper frame, high-wide carbody, robust linkage configurations, and heavy-duty enclosures are reinforced with thick doubler plates, extra gussets, and other reinforcements for structural integrity in severe applications
  • Large, 216 mm (8.5 in) pitch (349 HEX), grease lubricated tracks, provide excellent life in variable forestry working conditions
  • 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 are easy to access for cleaning, while reduced cooling fins per inch allows better debris flow-through and reduced clogging potential
  • 0.71 m3 (25 ft3) of storage space at ground level, provides ready access to tools, equipment, and supplies that operators use daily

Operator Comfort and Technology

  • Premium fit and finishes to maximize operator experience
  • Fully adjustable, air ride cab seat that includes heating and cooling capability for comfort and reduced operator fatigue
  • LED lights increase visibility
  • Rear entry cab option provides safe access through a fully lit platform through the use of a key FOB
  • Rear entry cab window design improves visibility for shovel logging and other applications
  • Rear entry cab includes a new innovative cab lock down system that minimizes transport time and improves uptime
  • Tool control as standard equipment for swapping and selecting tools quickly and efficiently
  • Cat Product Link™ allows for remote location of a machine and enables tracking of fuel consumption and other events