527

Heavy Equipment

527

Net Flywheel Power
150 HP / 112 kW
Gross Power
166 HP / 124 kW
Displacement
425 in³ / 7 l

The Cat 527 Skidder is designed and built specifically for log skidding applications. The 527's extended track roller frame and weight-forward bias make it well suited for mountainous and soft underfoot logging operations. The skidder's ergonomic and spacious operator's environment allow for increased comfort and production. The 527's standard forestry guarding and undercarriage design ensure the durability required in logging applications. Both Cable and Swing-boom Grapple configurations are provided to suit a wide range of skidding applications.

Engine
Net Flywheel Power 150 HP / 112 kW
Engine Model Cat® 3304 DIT
Gross Power 166 HP / 124 kW
Displacement 425 in³ / 7 l
Service Refill Capacities
Cooling System 9.7 gal (US) / 36.9 l
Engine Crankcase and Oil Filter 5.8 gal (US) / 22 l
Final Drive - Each 1.7 gal (US) / 6.5 l
Fuel Tank 75.3 gal (US) / 285 l
Hydraulic Tank 10.5 gal (US) / 39.8 l
Recoil Spring Housing - Each 7.1 gal (US) / 27 l
Transmission 39.1 gal (US) / 148 l
Winch Sump (527 Winch) 19.5 gal (US) / 74 l
Weights
Operating Weight - Cable 41217 lb / 18696 kg
Operating Weight - Grapple 48281 lb / 21900 kg
527CA Winch with Freespool
Cable Size - Optional 0.88 in / 22 mm
Cable Size - Recommended 0.75 in / 19 mm
Drum Capacity - Optional Cable 180 ft / 55 m
Drum Capacity - Recommended Cable 267 ft / 81 m
Drum Diameter 10 in / 254 mm
Drum Width 13 in / 330 mm
Maximum Linepull 69200 lb / 31389 kg
Maximum Linespeed 143 ft/min / 44 m/min
Weight 2600 lb / 1180 kg
Undercarriage - Cable
Grouser Height 2.56 in / 65 mm
Shoes/Side 41
Track Gauge 85.04 in / 2160 mm
Track Rollers/Side 7
Track on Ground 112.05 in / 2846 mm
Width - Shoe 22.01 in / 559 mm
Width - Shoe - Optional 24.02 in / 610 mm
Undercarriage - Grapple
Grouser Height 2.56 in / 65 mm
Shoes/Side 43
Track Gauge 85.04 in / 2160 mm
Track Rollers/Side 8
Track on Ground 126.34 in / 3209 mm
Width - Shoe 29.92 in / 760 mm
Transmission
Steering Clutch/Brake
Torque Converter Type Skidder
Travel Speed - Forward 1 2.3 mile/h / 3.7 km/h
Travel Speed - Forward 2 4.1 mile/h / 6.6 km/h
Travel Speed - Forward 3 7.1 mile/h / 11.5 km/h
Travel Speed - Reverse 1 2.8 mile/h / 4.6 km/h
Travel Speed - Reverse 2 5.1 mile/h / 8.3 km/h
Travel Speed - Reverse 3 9 mile/h / 14.6 km/h
Blades
527 PAT - Blade Capacity* 3.07 yd³ / 2.35 m³
527 PAT - Blade Height 36.3 in / 922 mm
527 PAT - Blade Width 136.22 in / 3460 mm
5P-PAT - Blade Capacity* 4.93 yd³ / 3.77 m³
5P-PAT - Blade Height 47.24 in / 1200 mm
5P-PAT - Blade Width 128.82 in / 3272 mm
Blade Type 5P-PAT, 527 PAT
Dimensions
CA - Overall Width without Blade and with 559 mm (22 in) Shoes 107.09 in / 2720 mm
GR - Overall Width without Blade and with 760 mm (30 in) Shoes 118.9 in / 3020 mm

Standard Equipment

  • ANTIFREEZE
    • 50% concentration of extended life coolant, freeze protection to –37° C (–34° F), anti-boil protection to 108° C (226° F)
  • ELECTRICAL
    • Hour meter
    • Work lamps, Halogen, 3-front and 2-rear
    • Back-up alarm
    • Warning horn
  • HYDRAULICS
    • Load sensing hydraulics
    • Single lever blade control
  • GUARDS
    • Engine enclosures, heavy-duty
    • Fenders, heavy-duty
    • Extreme-service crankcase
    • Fuel tank, heavy-duty
    • Radiator, heavy-duty punched hole
    • Front brush sweeps
    • Precleaner guard
  • OPERATOR ENVIRONMENT
    • Decelerator
    • Electronic Monitoring System
    • Gauges:
    • Seat, Angled suspension
    • Seat belt
  • POWER TRAIN
    • 3304 DIT engine
    • 24-volt direct electric start torque converter
    • 3-speed Powershift transmission
    • Precleaner with prescreener
    • Muffler
    • Fuel priming pump
  • UNDERCARRIAGE
    • End guiding guards
    • Hydraulic track adjusters
    • Segmented Sprocket

Optional Equipment

  • BULLDOZER
    • 5P PAT Blade (Power Angle Tilt)
    • 527 Power Angle Tilt (527CA only)
  • ELECTRICAL
    • Alternator, 50-amp 24-volt (527CA)
    • Alternator, 75-amp 24-volt (527GR)
  • GRAPPLE – (527GR)
    • Swing Boom
    • Grapple Bunching, 0.93 m² (10 ft²)
    • Grapple Sorting, 0.83 m² (9 ft²)
  • GUARDS
    • Vandalism Protection, Canopy
    • Vandalism Protection, Cab
    • Track Guard, 7 Roller
    • Track Guard, 8 Roller
    • Track Guard, Rear
    • Sweep Screen
  • OPERATOR ENVIRONMENT
    • Canopy, Open ROPS
    • Cab, Enclosed ROPS/FOPS
  • UNDERCARRIAGE
    • 7-Roller track frames
    • 8-Roller track frames
  • WINCH – (527CA)
    • 31 388 kg-force (69,200 lb-force) Line pull
    • Winch w/Freespool and 4 Roller Fairlead
    • Winch w/Freespool and Raised 4 Roller Fairlead
    • Winch Omission
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