579C Knuckleboom Loader

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579C Knuckleboom Loader

Cat knuckleboom loaders are known for superior multifunction capability, excellent visibility and heavy-duty booms and structures. Now the Cat C Series knuckleboom loaders feature a new more fuel ...
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Engine

Gross Power
174HP
Engine Model
Cat® C6.6 ACERT™ Tier 4 Interim
Gross Power - 1,800 rpm
174HP

Operating Specifications

Knuckleboom Length
32ft
Swing Speed
9.5r/min
Swing Torque
73800ft-lb
Maximum Reach - Standard Boom
32ft
Standard Knuckleboom Reach to Pin
32ft
Swing Bearing - Diameter - Ball Path
43.5in
Tail Swing
108.2in

Weights

Operating Weight
36480lb
Counterweight
1440lb
Operating Weight - Less Grapple
36480lb
Operating Weight - Without Grapple
36480lb

Hydraulic System

Cylinders - Main
two
Cylinders - Stick
one
Hydraulic Pressure - Swing
3500psi
Hydraulic Pressure - System
3500psi
Cylinders - Stabilizers
four
Hydraulic Oil Flow at 1,800 rpm
230/230 L (60/60 gal)

Service Refill Capacities

Hydraulic Tank
80gal (US)
Fuel Tank
100gal (US)
Swing Drive
2.6gal (US)
Engine Oil
4gal (US)
Cooling System
7.5gal (US)

Dimensions

Stabilizer Pad Size
508 × 711 mm (20 × 28 in)
Stabilizer Reach Below Grade
12.8in
Stabilizer Spread - Maximum Down Reach
166.8in
Stabilizer Spread - Grade
183.8in
Height - Top of Cab
161.9in

Standards

OFPS
cab meets SAE J2267

Shipping Dimensions - Mounted Trailer

Height
161.9in
Width
101.3in

Standard Equipment:

Optional Equipment:

    Ds Systems
    • Suspension trailer with hydraulic landing gear
    • CTR 320 three-knife delimber
    • CTR 426 four-knife delimber
    Other Equipment
    • Cat Product Link
    • AM/FM/CD/Satellite radio receiver
    • Long-range front lights on cab
    • Engine compartment lights
    • Additional subframe ladders
    • Auxiliary light package
    • Slasher port adapter fittings
    • Single “V” and double “VV” bolt on heels
    • Single “V” extended and double “VV” extended bolt on heels
    • 305 mm (12 in) grapple mounting knuckle
    • Grapples