579D Knuckleboom Loader

Gross Power
173 hp
Knuckleboom Length
32 ft
Operating Weight
36500 lb
Engine Model
Cat C4.4 ACERT

Engine

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

Operating Specifications

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

Weights

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

Hydraulic System

Cylinders – Main
one
Cylinders – Stick
one
Hydraulic Pressure – System
3625psi
Hydraulic Pressure – Swing
3625psi
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

Service Refill Capacities

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

Dimensions

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

Standards

OFPS
OFPS cab meets SAE J2267

Shipping Dimensions - Mounted Trailer

Width
101.3in
Height
159.1in

GLK Series Grapples – GLK55

Height (open/excluding rotation)
46.7in
Height (open/including rotation)
68in
Weight (excluding rotation)
1411lb
Weight (including rotation)
1911lb
Area (tip to tip)
3.8ft2
Open
54in
Close
5in
Note
All specifications are approximate.

GLK Series Grapples – GLK48

Height (open/excluding rotation)
45.1in
Height (open/including rotation)
66in
Weight (excluding rotation)
1407lb
Weight (including rotation)
1907lb
Area (tip to tip)
3.0ft2
Open
48in
Close
4.5in
Note
All specifications are approximate.

GLK Series Grapples - GLK48

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

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

Standard Equipment:

Optional Equipment: