CAT 525 Skidder


Dimensions

Overall Length 19.69 in (6000 mm)
Overall Width 10.27 ft in (3129.28 mm)
Height To Top Of Cab 10.01 ft in (3050 mm)
Ground Clearance 1.73 ft in (527.05 mm)
Wheelbase 11.49 ft in (3500 mm)
Reach Of Grapple At Ground Level 8.26 ft in (2517.1 mm)
Tong Opening At Tips 8.34 ft in (2540 mm)
Wheel Base 11.5 ft in (0.3 m)
Max Line Pull – Bare Drum 19800 lb (88.08 kN)
Drum Diameter 10 in (254 mm)
Grapple Capacity – Tongs Tip To Tip 9.05 ft2 (0.84 m2)
Height 10.13 ft in (3086.1 mm)
Length 18.2 ft in (5544.82 mm)
Blade Width 7.09 ft in (2160 mm)
Max Line Speed 95.97 ft/min (29.25 m/min)

Engine Details

Number Of Cylinders 4
Engine Make CAT
Engine Model 3304 DIT
Gross Power 175 hp (130.5 kw)
Net Power 160 hp (119.4 kw)
Power Measured @ 2200 rpm
Displacement 425 cu in (7 L)
Bore 4.8 in (121 mm)
Stroke 6 in (152.4 mm)
Aspiration Turbocharged
Net Power – Iso 9249 160 hp (119.4 kw)
Net Power – Sae J1349 158 hp (117.9 kw)
Gross Power – Sae J1995 179 hp (133.5 kw)
Engine Model Cat 3304 DIT Diesel
Net Power – Eec 80/1269 160 hp (119.4 kw)
Net Flywheel Power 160 hp (119.4 kw)
Derating Altitude 7500 ft in (2286 m)
Governed Speed At Rated Power 2200 rpm
Air Cleaner dry, dual element
Electrical System 24 V
Battery Quantity 2
Battery – Volts 12 V
Battery Capacity 93 Amp-hr
Fan Type blower
Starting System 24 V

Operational Specs

Operating Weight 33510.3 lb (15200 kg)
Fuel Tank Capacity 70.1 gal (265 L)
Cooling System Fluid Capacity 9.6 gal (36 L)
Engine Oil Capacity 5.1 gal (19 L)
Front Diff Fluid Capacity 11.1 gal (42 L)
Rear Diff Fluid Capacity 11.1 gal (42 L)
Transmission Fluid Capacity 14.1 gal (53 L)
Hydraulic System Fluid Capacity 19.6 gal (74 L)
Operational Voltage 24 V
Alternator Supplied Amperage 75 amps
Axle Oscillation 15 degrees
Tire Size 23.1-26

Power Train

Brakes – Service Type hydraulic actuated, oil disc
Brakes – Parking Type mechanical shoe
Steering, Frame Articulation fully hydraulic control
Maximum Drawbar Pull 43500 lb (19731.3 kg)
Travel Speed – Forward 1 3.9 mph (6.3 km/h)
Travel Speed – Forward 2 6.5 mph (10.5 km/h)
Travel Speed – Forward 3 9.2 mph (14.9 km/h)
Travel Speed – Forward 4 16 mph (25.8 km/h)
Travel Speed – Reverse 1 3.9 mph (6.3 km/h)
Travel Speed – Reverse 2 6.5 mph (10.5 km/h)
Travel Speed – Reverse 3 11.8 mph (19 km/h)
Transmission Cooler Type plate
Transmission 4 fwd/3 rev

Transmission

Number Of Forward Gears 4
Number Of Reverse Gears 3
Max Speed – Forward 16.9 mph (27.2 km/h)
Max Speed – Reverse 12 mph (19.3 km/h)

Weights

Est. Operating Weight 29891 lb (13558.4 kg)
Dozer – Extended Width 630 lb (285.8 kg)
Enclosed Cab 100 lb (45.4 kg)
Grapple – Bunching 1.04 M2 / 11.2 Ft2 2350 lb (1066 kg)
Grapple – Bunching 1.16 M2 / 12.5 Ft2 2460 lb (1115.9 kg)
Grapple – Sorting .84 M2 / 9.0 Ft2 1550 lb (703.1 kg)
Tires – 24.5 X 32, 16 Pr 710 lb (322.1 kg)
Tires – 30.5l X 32, 16 Pr 1476 lb (669.6 kg)
Winch 1630 lb (739.4 kg)

Hydraulic System

Pump Type axial piston
Relief Valve Setting 3000 psi
Circuit Type closed-cntr, var flow
Steering Valve direct link, non-follow
Steering Cylinder – Bore 3 in (76.2 mm)
Steering Cylinder – Stroke 17 in (431.8 mm)
Steering Cylinder – Rod Diameter 1.8 in (45 mm)
Dozer Valve direct linkage
Dozer Cylinder – Bore 4 in (101.6 mm)
Dozer Cylinder – Stroke 14 in (355.6 mm)
Dozer Cylinder – Rod Diameter 2 in (50.8 mm)
Grapple Valve 3 or 4 stack, pilot
Pump Output 45.5 gal/min
Reservoir Tank Capacity 12.9 gal (48.9 L)

Service Refill

Fuel Tank Capacity 68 gal (257.5 L)
Differential – Final Drives – Front 11 gal (41.7 L)
Differential – Final Drives – Rear 11 gal (41.7 L)
Transmission – Torque Converter 14 gal (53 L)
Mechanical Winch 5.1 gal (19.4 L)
Cooling System 9 gal (34.1 L)
Hydraulic System – Total 18 gal (68.2 L)
Engine Oil 4 gal (15.2 L)
Hydraulic System – Tank 14 gal (53 L)

Arch

Arch Types single/dual/cable
Dual Function – Lift Maximum Reach 44.3 in (1125.3 mm)
Dual Function – Lift Highest, Farthest 72 in (1828.8 mm)
Dual Function – Lift Highest, Retracted 106.1 in (2695 mm)
Dual Function – Lift Lowest, Farthest 14.9 in (378.5 mm)
Dual Function – Lift Lowest, Retracted 44.3 in (1125.3 mm)
Dual Function – Reach Highest, Farthest 107.3 in (2725.5 mm)
Dual Function – Reach Highest, Retracted 48.9 in (1242.1 mm)
Dual Function – Reach Lowest, Farthest 104.5 in (2654.3 mm)
Dual Function – Reach Lowest, Retracted 58.7 in (1491 mm)
Single Function – Lift Highest, Retracted 85.4 in (2169.2 mm)
Single Function – Reach Minimum 65.6 in (1666.3 mm)
Single Function – Lift Lowest 13.5 in (342.9 mm)
Dual Function – Reach Maximum 107.3 in (2725.5 mm)
Single Function – Reach Maximum 99.1 in (2517.2 mm)

Grapple

Bunching – Full Open Height 73.8 in (1874.6 mm)
Bunching – Fully Closed Height 60.4 in (1532.2 mm)
Bunching – Minimum Stem Diameter 5.3 in (134.7 mm)
Bunching – Reach At Full Open 28 in (711.2 mm)
Bunching – Tip To Tip Height 89.1 in (2263.2 mm)
Bunching – Tong Opening 120 in (3048 mm)
Sorting – Full Open Height 61.5 in (1562.1 mm)
Sorting – Fully Closed Height 72 in (1828.8 mm)
Sorting – Minimum Stem Diameter 3 in (76.2 mm)
Sorting – Tip To Tip Height 86.5 in (2197.1 mm)
Sorting – Tong Opening 100 in (2540 mm)
Bunching – Capacity 12.5 ft2 (1.2 m2)
Sorting Capacity 9 ft2 (0.9 m2)

Winch – Grapple Skidder

Maximum Line Pull – Bare Drum 38200 lb (17327.3 kg)
Maximum Line Speed 502 ft/min
Drum Capacity – 19.0 Mm (3/4 In) 199 ft in (60.7 m)
Drum Diameter 12 in (304.8 mm)
Drum Width 7.9 in (200.7 mm)
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