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 |
72164 |
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 |