579D Knuckleboom Loader
- Technical Specs
- Gross Power
- 173 hp
- Engine Model
- Cat C4.4 ACERT
- Gross Power at 1,800 rpm
- 173 hp
- Operating Weight
- 36500 lb
- Counterweight
- 1440 lb
- Operating Weight without Grapple
- 36500 lb
- Knuckleboom Length
- 32 ft
- Swing Speed
- 9.5 rpm
- Maximum Reach (standard boom)
- 32 ft
- Note
- *Theoretical
- Swing Bearing Diameter (ball path)
- 43.5 in
- Swing Torque*
- 73800 lbf-ft
- Tail Swing
- 108.2 in
- Hydraulic Tank
- 80 gal
- Fuel Tank
- 100 gal
- Engine Oil
- 2.1 gal
- Cooling System
- 7.5 gal
- Swing Drive
- 2.6 gal
- DEF Tank
- 5 gal
- Cylinders – Main
- one
- Cylinders – Stick
- one
- Hydraulic Pressure – System
- 3625 psi
- Hydraulic Pressure – Swing
- 3625 psi
- Cylinders – Stabilizers
- four
- Hydraulic Oil Flow @ 1,800 rpm
- 230/230 L/min (60/60 gal/min)
- Stabilizer Pad Size
- 508 × 711 mm (20 × 28 in)
- Stabilizer Reach Below Grade
- 15.5 in
- Stabilizer Spread at Maximum Down Reach
- 166.8 in
- Height to Top of Cab
- 159.1 in
- Stabilizer Spread at Grade
- 183.8 in
- Note
- 579D dimensions are on suspension trailer.
- OFPS
- OFPS cab meets SAE J2267
- Width
- 101.3 in
- Height
- 159.1 in
- Height (open/excluding rotation)
- 46.7 in
- Height (open/including rotation)
- 68 in
- Weight (excluding rotation)
- 1411 lb
- Weight (including rotation)
- 1911 lb
- Area (tip to tip)
- 3.8 ft2
- Open
- 54 in
- Close
- 5 in
- Note
- All specifications are approximate.
- Height (open/excluding rotation)
- 45.1 in
- Height (open/including rotation)
- 66 in
- Weight (excluding rotation)
- 1407 lb
- Weight (including rotation)
- 1907 lb
- Area (tip to tip)
- 3.0 ft2
- Open
- 48 in
- Close
- 4.5 in
- Note
- All specifications are approximate.