CAT 525C Skidder


Dimensions

Overall Width 11.15 ft in (3398.52 mm)
Ground Clearance 1.91 ft in (581.66 mm)
Decking Blade Lift Height 54.4 in (1381.76 mm)
Decking Blade Width 123.5 in (3136.9 mm)
Height 10.45 ft in (3183.89 mm)
Height – Top Of Cab 10.45 ft in (0.27 m)
Length 27.46 ft in (8369.05 mm)
Length – Overall, Grapple, Dual 300.2 in (7625.08 mm)
Rear Axle – Pin 70.8 in (1798.32 mm)
Top Roller Height – Cable 110 in (2794 mm)
Tread Width 103.2 in (2621.29 mm)
Turning Radius – Over Tires 19.69 ft in (0.5 m)
Axle Height 33.21 in (843.28 mm)
Wheel Base 11.6 ft in (0.3 m)
Decking Blade Dig Depth 17.95 in (455.93 mm)

Engine Details

Number Of Cylinders 6
Displacement 439 cu in (7.2 L)
Bore 4.4 in (110 mm)
Stroke 5 in (127 mm)
Net Power – Iso 9249 182 hp (135.8 kw)
Net Power – Sae J1349 182 hp (135.8 kw)
Gross Power – Sae J1995 196 hp (146.2 kw)
Engine Model Cat C7 ACERT
Net Flywheel Power 182 hp (135.8 kw)
Derating Altitude 7500 ft in (2286 m)
Air Cleaner Dry precleaner
Electrical System 24V
Battery Quantity 2
Battery – Volts 12V
Battery Capacity 950 CCA
Fan Type Blower
Starting System Direct electric
Maximum Torque At Rated Speed 896 N-m at 1400 RPM
Fan Speed 1620 rpm
Engine Make Caterpillar

Power Train

Brakes – Service Type Single disc WET enclosed
Brakes – Parking Type Drum brake on rear output of transmission drop box
Steering, Frame Articulation +/- 45 degrees
Travel Speed – Forward 1 4 mph (6.5 km/h)
Travel Speed – Forward 2 5.6 mph (9.1 km/h)
Travel Speed – Forward 3 6.8 mph (11 km/h)
Travel Speed – Forward 4 9.5 mph (15.3 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 11.6 mph (18.7 km/h)
Transmission Cooler Type Plate
Transmission 5 fwd / 3 rev countershaft, powershift
Travel Speed – Forward 5 17.1 mph (27.6 km/h)
Torque Converter Type Lock-up clutch

Weights

Est. Operating Weight 39045 lb (17710.6 kg)

Hydraulic System

Pump Type Axial piston
Relief Valve Setting 3045 psi
Circuit Type Closed center, variable flow
Steering Valve Direct link, non-follow
Steering Cylinder – Bore 3.5 in (88.9 mm)
Steering Cylinder – Stroke 17.3 in (437.4 mm)
Steering Cylinder – Rod Diameter 2 in (50.8 mm)
Dozer Valve Electro-hydraulic
Dozer Cylinder – Bore 4 in (101.6 mm)
Dozer Cylinder – Stroke 18.5 in (469.9 mm)
Dozer Cylinder – Rod Diameter 2.3 in (57.2 mm)
Grapple Valve 4 or 5 stack, pilot
Pump Output 46 gal/min
Reservoir Tank Capacity 14.3 gal (54.1 L)

Service Refill

Fuel Tank Capacity 83.2 gal (315 L)
Differential – Final Drives – Front 13.7 gal (51.9 L)
Differential – Final Drives – Rear 13.7 gal (51.9 L)
Transmission – Torque Converter 14.2 gal (53.8 L)
Mechanical Winch 6.5 gal (24.7 L)
Cooling System 15 gal (56.8 L)
Hydraulic System – Total 29.6 gal (112.1 L)
Engine Oil 7.1 gal (26.9 L)
Hydraulic System – Tank 14.3 gal (54.2 L)

Msc Comments

Spec Date 5/06

Arch

Dual Function – Reach Maximum 52.6 in (1336.1 mm)
Single Function – Reach Maximum 52.6 in (1336.1 mm)

Grapple

Bunching – Capacity 12.5 ft2 (1.2 m2)
Sorting Capacity 9 ft2 (0.9 m2)
Thinning – Capacity 14.4 ft2 (1.4 m2)

Winch – Grapple Skidder

Maximum Line Pull – Bare Drum 39342 lb (17845.3 kg)
Maximum Line Speed 132 ft/min
Drum Capacity – 19.0 Mm (3/4 In) 154 ft in (47 m)
Drum Diameter 9 in (228.6 mm)
Drum Width 11 in (279.4 mm)
Drum Capacity – 22.2 Mm (7/8 In) 97 ft in (29.6 m)
Drum Capacity – 25.4mm (1 In) 91 ft in (27.8 m)

Arch, Dual Function

Lift Highest, Farthest 76.5 in (1943.1 mm)
Reach – Lowest, Retracted 57.8 in (1468.2 mm)
Reach – Lowest, Farthest 98 in (2489.2 mm)
Reach – Highest, Farthest 108.9 in (2766.1 mm)
Reach – Maximum 113.4 in (2880.4 mm)
Lift Highest, Retracted 103.3 in (2623.9 mm)
Lift Maximum Reach 52.6 in (1336.1 mm)
Lift Lowest, Retracted 29.6 in (751.9 mm)
Lift Lowest, Farthest 10.2 in (259.1 mm)
Loaded Tire Radius 33.2 in (843.3 mm)
Reach – Highest, Retracted 59.6 in (1513.9 mm)

Arch, Single Function

Lift Highest, Retracted 87.1 in (2212.4 mm)
Lift Lowest, Farthest 23.6 in (599.5 mm)
Reach – Highest, Retracted 64.2 in (1630.7 mm)
Reach – Lowest, Farthest 99.3 in (2522.3 mm)
Loaded Tire Radius 33.2 in (843.3 mm)

Grapple, Cr – Bunching

Grapple Capacity 12.5 ft2 (1.2 m2)
Tip To Tip Height 75.6 in (1920 mm)
Tong Ppening 120.1 in (3050.1 mm)
Full Open Height 66.1 in (1677 mm)
Minimum Stem Diameter 6.1 in (155 mm)
Full Closed Height 50.6 in (1285 mm)

Grapple, Cr – Thinning

Grapple Capacity 14.5 ft2 (1.4 m2)
Tip To Tip Height 78 in (1981 mm)
Tong Ppening 123 in (3124 mm)
Full Closed Height 54 in (1371.1 mm)
Full Open Height 72.2 in (1832.2 mm)
Minimum Stem Diameter 7.5 in (190 mm)

Winch – Cable Skidder

Maximum Line Pull – Bare Drum 41270 lb (18719.8 kg)
Maximum Line Speed 360 ft/min
Drum Capacity – 19.0 Mm (3/4 In) 148 ft2 (13.8 m2)
Drum Capacity – 22.2 Mm (7/8 In) 105 ft2 (9.8 m2)
Drum Capacity – 25.4mm (1 In) 82 ft in (25 m)
Drum Diameter 10 in (254 mm)
Drum Width 11 in (279.4 mm)
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