Caterpillar 525B Skidder

Arch

Arch Types 45.3
Dual Function – Lift Highest, Farthest 106 in (269 cm)
Dual Function – Lift Highest, Retracted 107 in (273 cm)
Dual Function – Lift Lowest, Farthest 44 in (113 cm)
Dual Function – Lift Lowest, Retracted 105 in (265 cm)
Dual Function – Lift Maximum Reach 72 in (183 cm)
Dual Function – Reach Highest, Farthest 49 in (124 cm)
Dual Function – Reach Highest, Retracted 107 in (273 cm)
Dual Function – Reach Lowest, Farthest 59 in (149 cm)
Dual Function – Reach Lowest, Retracted 110 in (280 cm)
Dual Function – Reach Maximum 74 in (187 cm)
Single Function – Lift Highest, Retracted 99 in (252 cm)

Dimensions

Cable Width 148 in (375 cm)
Drum Capacity at Cable Width 39,342 ft (11,991 m)
Grapple Capacity – tongs tip to tip 10 cu ft (3 cu m)
Height 6 ft (2 m)
Height – Top of Cab 2 ft (0 m)
Length 12 ft (4 m)
Max Blade Height 9 in (23 cm)
Max Height of Boom 9 ft (3 m)
Max Line Pull – bare drum 340 lbs (154 kg)
Max Line Speed 4 ft/min (1 m/min)
Overall Length 11 ft (3 m)
Overall Width 11 ft (3 m)
Wheel Base 83 ft (25 m)
Wheelbase 10 ft (3 m)

Engine

Air Cleaner 24 V
Aspiration 35800
Battery – Volts 950 CCA
Battery Capacity blower
Battery Quantity 12 V
Bore 5 in (13 cm)
Derating Altitude 2,200 ft (671 m)
Electrical System 2
Engine Model 180
Fan Speed hydraulic, wet disc rpm
Fan Type direct electric
Governed Speed at Rated Power dry centrifugal precleaner rpm
Gross Power 160 hp (119 kw)
Maximum Torque at Rated Speed 1909
Net Flywheel Power 10,663 hp (7,952 kw)
Net Power – EEC 80/1269 160 hp (119 kw)
Net Power – ISO 9249 160 hp (119 kw)
Net Power – SAE J1349 180 hp (134 kw)
Power Measured @ 441.8 rpm
Starting System 779.1 @ 1400 Nm
Stroke 160 in (406 cm)
Torque Measured @ 83.2 rpm

Grapple

Bunching – Capacity 9 cu ft (3 cu m)
Bunching – Full Open Height 60 in (153 cm)
Bunching – Fully Closed Height 5 in (13 cm)
Bunching – Minimum Stem Diameter 89 in (226 cm)
Bunching – Tip to Tip Height 120 in (305 cm)
Bunching – Tong Opening 62 in (156 cm)
Sorting – Full Open Height 72 in (183 cm)
Sorting – Fully Closed Height 3 in (8 cm)
Sorting – Minimum Stem Diameter 87 in (220 cm)
Sorting – Tip to Tip Height 100 in (254 cm)
Sorting – Tong Opening 13 in (32 cm)
Sorting Capacity 39,300 cu ft (11,979 cu m)

Hydraulic System

Circuit Type direct link, non-follow
Dozer Cylinder – Bore 18 in (47 cm)
Dozer Cylinder – Rod Diameter 3 in (8 cm)
Dozer Cylinder – Stroke 2 in (6 cm)
Dozer Valve 4
Grapple Valve 50
Pump Output 17 gpm (62 lpm)
Pump Type 3045
Relief Valve Pressure 11.6 psi
Relief Valve Setting closed cntr, load sensing psi
Reservoir Tank Capacity 11 gal (40 l)
Steering Cylinder – Bore 17 in (43 cm)
Steering Cylinder – Rod Diameter direct linkage control in
Steering Cylinder – Stroke 2 in (5 cm)
Steering Valve 3

Operating Specifications

Axle Oscillation 85.4 degrees
Cooling System Fluid Capacity 7 gal (27 l)
Engine Oil Capacity 14 gal (52 l)
Front Diff Fluid Capacity 14 gal (52 l)
Fuel Capacity 13 gal (50 l)
Rear Diff Fluid Capacity 14 gal (54 l)
Steering Angle 30.5 volts
Tire Size 8.8
Transmission Fluid Capacity 33 gal (123 l)

Power Train

Brakes – Parking Type hydraulic control
Brakes – Service Type drum
Maximum Drawbar Pull 4 lbs (2 kg)
Steering, Frame Articulation 38730
Torque Converter Type 35800
Transmission 17.1
Transmission Cooler Location sngl stg, rotating housing
Transmission Cooler Type Countershaft 5fwd/3rev
Travel Speed – Forward 1 6 mph (9 kph)
Travel Speed – Forward 2 7 mph (11 kph)
Travel Speed – Forward 3 10 mph (15 kph)
Travel Speed – Forward 4 4 mph (6 kph)
Travel Speed – Forward 5 3308 Lock-up
Travel Speed – Reverse 1 7 mph (10 kph)
Travel Speed – Reverse 2 12 mph (19 kph)
Travel Speed – Reverse 3 Plate mph

Service Refill

Cooling System 33 gal (123 l)
Differential – Final Drives – Front 14 gal (52 l)
Differential – Final Drives – Rear 14 gal (54 l)
Engine Oil 17 gal (62 l)
Fuel Tank 14 gal (52 l)
Hydraulic System – Total 7 gal (27 l)
Mechanical Winch 13 gal (50 l)
Transmission – Torque Converter 7 gal (25 l)

Transmission

Max Speed – Forward 12 mph (19 kph)
Number of Forward Gears 3
Number of Reverse Gears 17.1
Transmission Type 5

Undercarriage

Ground Contact Area Axial Piston cu in
Length of Track on Ground Cat 3126 DITA diesel ft

Weights

Open ROPS axial piston lbs

Winch – Grapple Skidder

Drum Capacity – 19.0 mm (3/4 in) 10 ft (3 m)
Drum Capacity – 22.2 mm (7/8 in) 82 ft (25 m)
Drum Diameter 7 in (17 cm)
Drum Width 106 in (269 cm)
Maximum Line Pull – Bare Drum 340 lbs (154 kg)
Maximum Line Speed 148 ft/min (45 m/min)
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