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579D Knuckleboom Loader

579D Knuckleboom Loader

At a Glance

Gross Power
173 HP
Knuckleboom Length
32 ft
Operating Weight
36500 lb
Stabilizer Pad Size
508 × 711 mm (20 × 28 in)
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Overview

Engine

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Gross Power 173HP
Engine Model Cat C4.4 ACERT
Gross Power - 1,800 rpm 173HP

Operating Specifications

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Knuckleboom Length 32ft
Swing Speed 9.5r/min
Maximum Reach - Standard Boom 32ft
Swing Bearing - Diameter - Ball Path 43.5in
Swing Torque* 73800ft·lbf
Tail Swing 108.2in
Note *Theoretical

Weights

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Operating Weight 36500lb
Counterweight 1440lb
Operating Weight - Without Grapple 36500lb

Dimensions

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Stabilizer Pad Size 508 × 711 mm (20 × 28 in)
Stabilizer Reach Below Grade 15.5in
Stabilizer Spread - Maximum Down Reach 166.8in
Height - Top of Cab 159.1in
Stabilizer Spread - Grade 183.8in
Note 579D dimensions are on suspension trailer.

Service Refill Capacities

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Hydraulic Tank 80gal (US)
Fuel Tank 100gal (US)
Cooling System 7.5gal (US)
Engine Oil 2.1gal (US)
Swing Drive 2.6gal (US)
DEF Tank 5gal (US)

Hydraulic System

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Cylinders - Stabilizers four
Hydraulic Oil Flow at 1,800 rpm 230/230 L/min (60/60 gal/min)
Cylinders - Main one
Cylinders - Stick one
Hydraulic Pressure - Swing 3625psi
Hydraulic Pressure - System 3625psi

Standards

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OFPS OFPS cab meets SAE J2267

Shipping Dimensions - Mounted Trailer

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Width 101.3in
Height 159.1in

GLK Series Grapples - GLK48

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Area (tip to tip) 3ft²
Close 4.5in
Height - Open - Excluding Rotation 45.1in
Height - Open - Including Rotation 66in
Note All specifications are approximate.
Open 48in
Weight - Excluding Rotation 1407lb
Weight - Including Rotation 1907lb

GLK Series Grapples - GLK55

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Area (tip to tip) 3.8ft²
Close 5in
Height - Open - Excluding Rotation 46.7in
Height - Open - Including Rotation 68in
Note All specifications are approximate.
Open 54in
Weight - Excluding Rotation 1411lb
Weight - Including Rotation 1911lb