558 LL Forest Machine

Overview
Engine Model
Cat C7.1 ACERT
Net Flywheel Power
239 hp
Gross Power
239 hp
  • Exterior View

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

Engine Model
Cat C7.1 ACERT
Net Flywheel Power
239 hp
Gross Power
239 hp
Gross Power at 2,200 rpm
239 hp
Displacement
428 in3
Number of Cylinders
6
Engine Speed - Operation
1,750 r/min
Engine Speed - Travel
1,800 r/min
Engine Model
Cat C7.1 ACERT
Net Flywheel Power
239 HP
Gross Power
239 HP
Displacement
428 r/min
Gross Power at 2,200 rpm
239 HP
Number of Cylinders
6

Weights

Estimated Operating Weight without Attachment: Log Loader (U/U)
93,176 lb
Estimated Operating Weight without Attachment: Log Loader (O/U)
93,004 lb
Estimated Operating Weight without Attachment - Log Loader (O/U)
93,004 lb
Estimated Operating Weight without Attachment - Log Loader (U/U)
93,176 lb

Service Refill Capacities

Cooling System
8 gal
Engine Crankcase
6 gal
Hydraulic Tank
46 gal
Final Drive – Each
3 gal
DEF Tank
12 gal
Swing Drive
3 gal
Fuel Tank - CWT
261 gal (US)
Hydraulic System - Total
82 gal (US)
Cooling System
8 gal (US)
Swing Drive
3 gal (US)
Hydraulic Tank
46 gal (US)
DEF Tank
12 gal (US)
Engine Crankcase
6 gal (US)
Final Drive - Each
3 gal (US)

Operating Specifications

Maximum Drawbar Pull
72,164 lbf
Swing Torque
86,295 lbf-ft
Maximum Swing Speed
8 rpm
Maximum Speed - Rabbit
2 mile/h
Maximum Speed - Turtle
2 mile/h
Maximum Drawbar Pull
72,164 lbf
Maximum Swing Speed
8 r/min
Swing Torque
86,295 ft·lbf

Hydraulic System

Auxiliary Pump – U/U and O/U: Maximum Flow
14 gal/min
Auxiliary Pump – U/U and O/U: Maximum Pressure
1,499 psi
Auxiliary Pump – Bnt/Power Clam: Pump Drive Gear Ratio
1.28:1
Auxiliary Pump – Bnt/Power Clam: Maximum Flow
37 gal/min
Auxiliary Pump – Bnt/Power Clam: Maximum Pressure
1,499 psi
Main Pumps - Maximum Flow - Per Pump
63 gal/min
Main Pumps - Maximum Flow - Both Pumps
127 gal/min
Maximum System Pressure - Implements
5,076 psi
Maximum System Pressure - Travel
5,076 psi
Maximum System Pressure - Swing
4,641 psi
Maximum System Pressure - Heavy Lift Mode
5,511 psi
Auxiliary Pump - Bnt/Power Clam: Maximum Flow
37 gal/min
Auxiliary Pump - Bnt/Power Clam: Maximum Pressure
1,499 psi
Auxiliary Pump - Bnt/Power Clam: Pump Drive Gear Ratio
1.28:1
Auxiliary Pump - U/U and O/U - Maximum Flow
14 gal/min
Auxiliary Pump - U/U and O/U - Maximum Pressure
1,499 psi

Undercarriage

Track Gauge
115 in
Track Length
200 in
Ground Clearance
30 in
Undercarriage Pitch
9 in
Ground Clearance
30 in
Track Gauge
115 in
Track Length
200 in

Dimensions - Log Loader - Boom Stretched Out

Height of Tilted Side Entry Cab
138 in
Boom Height
115 in
Distance Between Idler and Sprocket Centerline
158 in
Ground Clearance
30 in
Overall Height
194 in
Overall Length (U/U)
629 in
Tail Swing Radius
144 in
Track Gauge
115 in
Track Length
200 in
Width - With 700 mm (28 in) Shoes
143 in

Dimensions: Log Loader (boom stretched out)

Boom Height
115 in
Overall Height
194 in
Overall Length (U/U)
629 in
Tail Swing Radius
144 in
Distance Between Idler and Sprocket Centerline
158 in
Track Length
200 in
Ground Clearance
30 in
Track Gauge
115 in
Width with 700 mm (28 in) Shoes
143 in

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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
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