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Cat Specs
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Engine

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

Operating Specifications

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

Weights

Operating Weight
36500 lb
Operating Weight - Without Grapple
36500 lb

Hydraulic System

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

Dimensions

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

Service Refill Capacities

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

Shipping Dimensions - Mounted Trailer

Height
159.1 in
Width
101.3 in

Standards

OFPS
OFPS cab meets SAE J2267