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558 Forest Machine

558 Forest Machine

At a Glance

Engine Model
Cat C7.1 ACERT
Net Flywheel Power
239 HP
Gross Power
239 HP
Displacement
428 in³
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Overview

The 558 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

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Engine Model Cat C7.1 ACERT
Net Flywheel Power 239HP
Gross Power 239HP
Displacement 428in³
Engine Speed - Operation 1750r/min
Engine Speed - Travel 1800r/min
Gross Power at 2,200 rpm 239HP
Number of Cylinders 6

Service Refill Capacities

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Cooling System 7.9gal (US)
Swing Drive 2.9gal (US)
Hydraulic Tank 46.2gal (US)
Fuel Tank - CWT 261.4gal (US)
Hydraulic System - Total 81.9gal (US)
DEF Tank 12.2gal (US)
Engine Crankcase 6.3gal (US)
Final Drive - Each 2.9gal (US)

Operating Specifications

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Maximum Speed - Turtle 1.5mile/h
Maximum Speed - Rabbit 2.3mile/h
Maximum Drawbar Pull 72164lbf
Maximum Swing Speed (GF) 7.5r/min
Swing Torque (GF) 74494ft·lbf

Hydraulic System

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Main Pumps - Maximum Flow - Per Pump 63.4gal/min
Main Pumps - Maximum Flow - Both Pumps 126.8gal/min
Maximum System Pressure - Implements 5076psi
Maximum System Pressure - Travel 5076psi
Maximum System Pressure - Swing 4641psi
Maximum System Pressure - Heavy Lift Mode 5511psi
Auxiliary Pump - Reach with Rotate: Maximum Flow 37.2gal/min
Auxiliary Pump - Reach with Rotate: Maximum Pressure 1499psi
Auxiliary Pump - Reach with Rotate: Pump Drive Gear Ratio 1.28:1

Undercarriage

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Undercarriage Pitch 8.5in
Ground Clearance 29.5in
Track Gauge 115in
Track Length 199.7in

Weights

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Estimated Operating Weight without Attachment: General Forestry (Reach) 85239lb

Dimensions - General Forestry - Boom Stretched Out

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Boom Height 146.5in
Distance Between Idler and Sprocket Centerline 158.2in
Ground Clearance 29.5in
Height of Tilted Side Entry Cab 137.7in
Overall Height 164.5in
Overall Length (Reach) 499.2in
Tail Swing Radius 143.8in
Track Gauge 115in
Track Length 199.7in
Width - With 700 mm (28 in) Shoes 142.6in