527 Track Skidder

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527 Track Skidder

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.
  • Standard Equipment
  • Optional Equipment
  • Specs

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

Specs

Overview

Long Name:
527 Track Skidder
Name:
527
Brand:
Caterpillar
Status:
Current

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