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Global-CE > Forestry Equipment(Track) > Cat Forestry Equipment(Track) > Cat Harvesters 501HD

Product Feature

Power Train

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Cat C6.6 Engine

The Cat C6.6 engine with ACERT™ Technology gives exceptional power and fuel efficiency, while meeting Tier 3, Stage IIIA emission requirements. This engine includes electronic governing, cold mode start strategy, automatic altitude compensation, electronic diagnostics and fault monitoring.

Exceptional Cooling Capability

A side by side antifreeze, hydraulic, and charge air cooling package allows efficient heat rejection. The cooling package is located away from the harvesting front where less debris and dust exposure minimizes cleaning requirements.

Cold Climate Capability

A thermal bypass in the hydraulic cooler line allows for quicker cold weather warm up of components by diverting oil back to the tank until the temperature of the oil requires cooling. An optional cold weather starting aid heats engine antifreeze and circulates it through the engine, hydraulic tank, and cab for easier start ups.

Large Fuel Carrying Capacity

The 378 L (100 gal) fuel capacity allows extended operating shifts and includes a lockable compartment lid for security.








Hydraulics

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Hydraulic Pump is Powerful, Responsive, Quiet

Designed for continuous, efficient and reliable operation, the harvester's axial piston hydraulic pump meets stringent requirements for noise, efficiency, controllability and durability.

Valves are Load Sensing, Pressure Compensated

The valve system has proven reliability in forestry applications with its fuel efficient load sensing pressure compensated technology. Each section is designed specifically for the flow and pressure of the function, therefore optimizing machine functionality and fuel efficiency. Ramped and proportional carrier functions save mechanical wear and tear on structures. Hydraulic valve configurations are available for operating either fixed or dangle style harvesting heads.

Automated control system

The IQAN computer based control system provides precise control of machine functions through fully proportional hydraulic valves.

Electric Hydraulic Oil Fill Pump

The hydraulic oil site gauge provides easy visibility to know when hydraulic oil needs to be added. An easy accessible service hose allows hydraulic oil to be pumped through the hydraulic filtering system and into the tank. This reduces maintenance time and helps to maintain oil cleanliness requirements.








Operator Station

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Safe Front Entry System

The unique front entry cab allows for easy and safe access onto the track frame. Foot pedals are attached to the door to swing out of the way and are deactivated when the door is open. The reverse slope front window keeps snow and debris from falling onto the window. Accumulated moisture can be removed with the front window wiper/washer.

Unobstructed Visibility

The engineered cab forward and rear engine design gives exceptional operator visibility, including to the boom side of the cab, so that potential trees to be harvested can be seen without swinging the cab for required visibility.

IQAN-MD3 control system

The carrier control system provides full function graphics display for easy monitoring of machine parameters. Operators can enter individual response preferences to customize the joystick controls.

Heated Air Suspension Seat

The heated air suspension seat features lumbar support and neck rests that provide optimum comfort. Armrests are adjustable in all directions and angles for full arm support, a reinforced seat structure designed for track machines absorbs added shock loads and optional four-way seat isolator provides additional vibration dampening.

Channeled Air Flow System

A 40,000 BTU air conditioning and heater system includes channeled air flow to louvered vents for full coverage of the operator and defrosting/defogging of windows. An automatic control system maintains consistent temperature for a constant comfort level.

Molded Consoles and Headliner

The molded consoles and headliner incorporated storage compartments and trays eliminate cab clutter. Two 12-volt power points provide flexibility in mounting additional electric and electronic equipment.








Structures and Undercarriage

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Strong X Body Design

The full length of the track frames are tied to the car body for strength and durability when maneuvering amongst stumps and rocks. The high walker design provides excellent ground clearance.

Easy to Clean

The rounded upper surfaces of the track frames shed dirt and debris for easier cleaning and reduced wear.

Integral Track Guards/Guides

Full length track guards provide complete chain support on uneven ground for reduced wear.

Final Drives

High torque final drives provide the carrier with a 1.1 to 1 tractive effort to weight ratio for easy mobility in the woods while maintaining good speed to efficiently navigate from tree to tree.

Rollers

The 2 top rollers and 8 bottom rollers are identical for parts commonality.

Engine Mounted Behind Boom

The rear mounted engine provides effective counter balance for lift capabilities at full reach.

Tanks Mounted in Counterweight

Fuel and hydraulic tanks are incorporated into the rear counterweight for increased balance on a low tail swing carrier.

Wide Boom Mounting Base

The base of the boom has been widened to provide the strength required for side loads when pulling trees out of the standing forest.

Heavy Duty Guarding

The engine and hydraulic compartments are well protected from falling debris and have sloped surfaces for easy cleaning.








Boom and Stick

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Fixed Linkage Boom

The fixed linkage boom provides 7.1 m (23.3 ft) reach to the tree with a PF-48 fixed head.

Telescopic Boom

The telescopic boom for dangle heads provides 8.2 m (27 ft) reach to the tree. The 5 sided “V” bottom stick design provides increased strength for higher lift capacity and extended wear pad life for long serviceability.

Steel Tube Lines

Steel tube hydraulic lines provide extended life and dissipate heat. Cover plates on the stick booms protect pipes from damage.








Versatility

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Attachments

From thinning to final cut harvesting, a selection of harvesting heads are available, including fixed and dangle styles.








Owning and Operating Costs

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ACERT Technology, Fuel Economy

Based on ongoing testing, the fuel economy of Cat engines with ACERT Technology is 3 to 5 percent better than current competing technologies. This fuel economy is directly related to the complete combustion of fuel due to the integration between the electronic control that monitors conditions, the air management system that controls air volume and the fuel injection system that delivers the amount of fuel as needed.

Designed for Forest Applications

The undercarriages are specifically designed for harvesting applications, providing the strength and durability that allows for a long service life. Engine and hydraulic canopies are durable to withstand working in the woods, and their sloped designs allow for easy shedding of debris for simplified cleaning.

Automatic Idle Down

The harvester control system includes an automatic engine idle down feature to reduce fuel consumption during periods of inactivity.








Serviceability

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Rear Mounted Fuel and Hydraulic Tanks

The fuel and hydraulic tanks are located within the counterweight, allowing the entire side of the machine to be opened to access the complete hydraulic system from pump to valves.

Forward Tilting Cab

The forward tilting cab allows easy access for under cab components and provides a platform for engine service.

Easy Fluid Changes

An electric refill pump to add oil into the hydraulic tank maintains system cleanliness by passing all oil through the filtering system.

Boom Grease Lines

Booms have grease lines extending from all pivot points down to the base of the main boom for on ground service.

Hinged Covers

The covers over the engine and hydraulic components open for easy access, and feature sloping surfaces for easy cleaning.

Debris Shedding Track Frames

The upper surfaces of the track frames are sloped for easier cleaning of dirt and debris.








Customer Support

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Caterpillar is known the world over for the quality of customer support from its dealer network - the industry's best. No matter where you are, the expertise of a Cat dealer is always nearby. Your local Cat dealer is your forestry consultant who can recommend the machines, work tools and services to maximize your operation and provide the support to keep you at top productivity.

  • 24-hour parts availability, where and when you need them, to minimize expensive downtime.

  • Customer Support Agreements to lower your operating costs.

  • State-of-the-art diagnostic programs, such as S·O·SSM oil analysis, inspection services and trend reporting to help avoid unscheduled repairs.

  • Financing programs for buying, renting or leasing Cat equipment.

  • Cat insurance to cover equipment losses from theft, collision, flood, upset or overturn, fire, vandalism and more.

  • Product Link to manage your equipment fleet through remote monitoring.

For more information on Cat products, dealer services and industry solutions, visit us at www.cat.com.









Sustainability

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Structures

Major structures and components are built to be rebuilt, reducing waste and replacement costs.

ACERT™ Technology

ACERT™ Technology reduces engine emissions at point of combustion with less moving parts for lower operating costs.


Product Parameter

Overview

Cat® track harvesters are equipped with dependable Cat engines, load sensing hydraulics and factory installed attachments. The forward-mounted cab and rear engine placement give the operator excellent visibility over the entire harvest area. The unique front entry cab allows for easy entry and exit and the cab tilts for servicing. The telescoping boom's V-shaped bottom extends the life of the wear pads and minimizes side-to-side movement as the boom telescopes in and out.

Engine

Units:

Gross Power163.0 HP 122.0 kWLess
Engine ModelCat® C6.6 ACERT™ Tier 3 Cat® C6.6 ACERT™ Tier 3Less
Gross Power - 1,800 rpm163.0 HP 122.0 kWLess

Hydraulic System

Hydraulic System Pressure5000.0 psi 344.0 barLess
Hydraulic Oil Flow at 2,200 rpm81.0 gal/min 307.0 l/minLess
Pump Size - Carrier and Implement8.54 in³ 140.0 cm³Less

Operating Specifications

Maximum Reach - With Head27.0 ft 8.23 mLess
Maximum Tractive Effort43400.0 lb 193.0 kNLess
Swing Speed7.0 r/min 7.0 r/minLess
Swing Torque30388.0 ft-lb 41200.0 N·mLess
Travel Speed - High1.9 mile/h 3.0 km/hLess
Travel Speed - Low1.1 mile/h 1.8 km/hLess

Service Refill Capacities

Cooling System6.25 gal (US) 23.6 lLess
Engine Oil4.0 gal (US) 15.0 lLess
Hydraulic System60.0 gal (US) 227.0 lLess
Hydraulic Tank60.0 gal (US) 228.0 lLess
Swing Drive1.0 gal (US) 3.78 lLess
Fuel Tank100.0 gal (US) 378.0 lLess

Weights

Operating Weight - Without Head40000.0 lb 18000.0 kgLess
Operating Weight - Without Attachment40000.0 lb 18000.0 kgLess

Standards

FOPS/OPS/ROPSCab meets FOPS/OPS/ROPS requirements Cab meets FOPS/OPS/ROPS requirementsLess

Undercarriage

Number of Rollers2 upper, 8 lower 2 upper, 8 lowerLess
Track Length156.0 in 3960.0 mmLess
Final Drive709BC 709BCLess
Ground Clearance26.0 in 660.0 mmLess
Size/Pitch (D-5 size)7.5 in 190.0 mmLess
Track Gauge88.0 in 2235.0 mmLess

Reach

Fixed Linkage Boom Reach - Pin19.85 ft 6.05 mLess
Telescopic Boom Reach - Pin26.0 ft 7.93 mLess

Power Train

Displacement403.0 in³ 6.6 lLess
Engine ModelCat® C6.6 ACERT™ Cat® C6.6 ACERT™Less
Gross Power - 1,800 rpm163.0 HP 122.0 kWLess
Rated Power - 2,200 rpm156.0 HP 116.5 kWLess
Torque - Maximum504.0 ft-lb 683.0 N·mLess

Operating Weights

Ground Pressure - Standard Pads7.11 psi 49.0 kPaLess
Operating Weight - With Attachment (est.)45000.0 lb 20411.0 kgLess
Operating Weight - Without Head40000.0 lb 18000.0 kgLess

Boom System

Fixed Linkage Lift Capacity - Gross - Maximum Reach8500.0 lb 3856.0 kgLess
Fixed Linkage Reach - Maximum19.8 ft 6.04 mLess
Reach with Dangle Head on Telescopic Boom27.0 ft 8.23 mLess
Reach with PF-48 Fixed Head on Fixed Linkage23.3 ft 7.1 mLess
Telescopic Boom Lift Capacity - Gross - Maximum Reach5071.0 lb 2300.0 kgLess
Telescopic Boom Reach - Maximum26.0 ft 7.93 mLess

Shipping Dimensions*

Height136.0 in 3454.0 mmLess
Width112.0 in


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