527

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.


SPECIFICATIONS
Engine
Net Flywheel Power 150 HP
Engine Model Cat® 3304 DIT
Gross Power 166 HP
Displacement 425 in³


Service Refill Capacities
Cooling System 9.7 gal (US)
Engine Crankcase and Oil Filter 5.8 gal (US)
Final Drive - Each 1.7 gal (US)
Fuel Tank 75.3 gal (US)
Hydraulic Tank 10.5 gal (US)
Recoil Spring Housing - Each 7.1 gal (US)
Transmission 39.1 gal (US)
Winch Sump (527 Winch) 19.5 gal (US)


Weights
Operating Weight - Cable 41217 lb
Operating Weight - Grapple 48281 lb


527CA Winch with Freespool
Cable Size - Optional 0.88 in
Cable Size - Recommended 0.75 in
Drum Capacity - Optional Cable 180 ft
Drum Capacity - Recommended Cable 267 ft
Drum Diameter 10 in
Drum Width 13 in
Maximum Linepull 69200 lb
Maximum Linespeed 143 ft/min
Weight 2600 lb


Undercarriage - Cable
Grouser Height 2.56 in
Shoes/Side 41
Track Gauge 85.04 in
Track Rollers/Side 7
Track on Ground 112.05 in
Width - Shoe 22.01 in
Width - Shoe - Optional 24.02 in


Undercarriage - Grapple
Grouser Height 2.56 in
Shoes/Side 43
Track Gauge 85.04 in
Track Rollers/Side 8
Track on Ground 126.34 in
Width - Shoe 29.92 in


Transmission
Steering Clutch/Brake
Torque Converter Type Skidder
Travel Speed - Forward 1 2.3 mile/h
Travel Speed - Forward 2 4.1 mile/h
Travel Speed - Forward 3 7.1 mile/h
Travel Speed - Reverse 1 2.8 mile/h
Travel Speed - Reverse 2 5.1 mile/h
Travel Speed - Reverse 3 9 mile/h


Blades
527 PAT - Blade Capacity* 3.07 yd³
527 PAT - Blade Height 36.3 in
527 PAT - Blade Width 136.22 in
5P-PAT - Blade Capacity* 4.93 yd³
5P-PAT - Blade Height 47.24 in
5P-PAT - Blade Width 128.82 in
Blade Type 5P-PAT, 527 PAT


Dimensions
CA - Overall Width without Blade and with 559 mm (22 in) Shoes 107.09 in
GR - Overall Width without Blade and with 760 mm (30 in) Shoes 118.9 in


BENEFITS & FEATURES
Power Train



Undercarriage



Application Flexibility



Operator Station



Hydraulics



Customer Support



Serviceability



EQUIPMENT
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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