527 Track Skidder

Overview
Net Flywheel Power
150 hp
Engine Model
Cat® 3304 DIT
Gross Power
166 hp

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
Engine Model
Cat® 3304 DIT
Gross Power
166 hp
Displacement
425 in3
Net Flywheel Power
150 mm H2O
Engine Model
Cat® 3304 DIT
Gross Power
166 mm H2O
Displacement
425 in³

Transmission

Travel Speeds – Fwd. 1st
2 mph
Travel Speeds – Fwd. 2nd
4 mph
Travel Speeds – Fwd. 3rd
7 mph
Travel Speeds – Rev. 1st
3 mph
Travel Speeds – Rev. 2nd
5 mph
Travel Speeds – Rev. 3rd
9 mph
Steering
Clutch/Brake
Torque Converter Type
Skidder
Travel Speed - Forward 1
2 mile/h
Travel Speed - Forward 2
4 mile/h
Travel Speed - Forward 3
7 mile/h
Travel Speed - Reverse 1
3 mile/h
Travel Speed - Reverse 2
5 mile/h
Travel Speed - Reverse 3
9 mile/h

Blades

Blade Types
5P-PAT, 527 PAT
527 PAT - Blade Capacity*
3 yd³
527 PAT - Blade Height
36 in
527 PAT - Blade Width
136 in
5P-PAT - Blade Capacity*
5 yd³
5P-PAT - Blade Height
47 in
5P-PAT - Blade Width
129 in
Blade Type
5P-PAT, 527 PAT

Service Refill Capacities

Cooling System
10 gal
Final Drive (each side)
2 gal
Fuel Tank
75 gal
Hydraulic Tank
11 gal
Transmission
39 gal
Engine Crankcase and Oil Filter
6 gal (US)
Recoil Spring Housing - Each
7 gal (US)
Winch Sump (527 Winch)
20 gal (US)
Cooling System
10 gal (US)
Final Drive - Each
2 gal (US)
Fuel Tank
75 gal (US)
Hydraulic Tank
11 gal (US)
Transmission
39 gal (US)

Weights

Operating Weight - Cable
41,217 lb
Operating Weight - Grapple
48,281 lb

Dimensions

CA - Overall Width without Blade and with 559 mm (22 in) Shoes
107 in
GR - Overall Width without Blade and with 760 mm (30 in) Shoes
119 in

Undercarriage - Grapple

Grouser Height
3 in
Shoes/Side
43
Track Gauge
85 in
Track Rollers/Side
8
Track on Ground
126 in
Width - Shoe
30 in

527CA Winch with Freespool

Cable Size - Optional
1 in
Cable Size - Recommended
1 in
Drum Capacity - Optional Cable
180 ft
Drum Capacity - Recommended Cable
267 ft
Drum Diameter
10 in
Drum Width
13 in
Maximum Linepull
69,200 lb
Maximum Linespeed
143 ft/min
Weight
2,600 lb

Undercarriage - Cable

Grouser Height
3 in
Shoes/Side
41
Track Gauge
85 in
Track Rollers/Side
7
Track on Ground
112 in
Width - Shoe
22 in
Width - Shoe - Optional
24 in

Power Train

Power Train

Power Train

Power Train

Undercarriage

Undercarriage

Undercarriage

Undercarriage

Undercarriage

Application Flexibility

Application Flexibility

Application Flexibility

Application Flexibility

Operator Station

Hydraulics

Hydraulics

Hydraulics

Customer Support

Customer Support

Customer Support

Customer Support

Customer Support

Serviceability

  • 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
  • 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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