A robust, reliable undercarriage utilizes proven components, customized for the most rugged forestry conditions. The unique boom design provides industry leading lift capacity throughout full reach range, a benefit in large timber. Three models are available with just the right horsepower, track size and hydraulic configurations to fit your application needs.

Gross Power 305.0 hp
Engine Model Cat® C9 ACERT™
Rated Power 282.0 hp
Displacement 537.0 in3

Operating Specifications
Max Reach w/ Head 37.0 ft
Bare Pin Lift at Max Reach w/o Head 4300 kg (9,500 lb) @ 10.7 m (35 ft)
Ground Clearance 35.0 in
Maximum Drawbar Pull 72430.0 lb

Operating Weight w/o Head 64000.0 lb
Est Operating Weight 67267.0 lb

Number of Rollers 9 per side
Track Gauge 2591 mm to 2870 mm (102 in to 113 in)
Track Length 189.0 in
Undercarriage (size/pitch) 330 HEX/215.9 mm (8.5 in)

Service Refill Capacities
Cooling System 16.1 gal
Engine Oil 10.3 gal
Hydraulic System 97.7 gal
Hydraulic Tank 85.33 gal
Swing Drive 2.6 gal
Fuel Tank 312.0 gal

Built for power, reliability, low maintenance, excellent fuel economy and low emissions.

Powerful Performance
The Cat® C9 electronically controlled ACERT delivers power while meeting all current Tier 2 emission standards. All models contain a fuel/water separator, engine air intake heater and a dual-stage combination air cleaner with pre-cleaner.

High Capacity Cooling System
The side-by-side radiator/oil cooler gives excellent cooling capacity for high production bunching and harvesting. On-demand Flexxaire™ fan activates only when required and allows the cooling fan to purge debris from the radiator area, keeping a cleaner cooling system. The IQAN control system infinitely controls blade pitch angle to reduce horsepower demand from the cooling package, and lower operating costs.

Engine Oil
Caterpillar engine oil is formulated to optimize engine life and performance and is recommended for use in Cat diesel engines. The engine oil change interval has been increased to 500 hours.

The clamshell engine compartment provides easy access to oil filters, oil dipstick, hydraulic fill pump and hoses reducing maintenance time.

Low Exhaust Emissions
The Cat C9 ACERT engine is a low emission engine designed to meet US EPA off-road Tier 2 emission regulations.

Hydraulic Packages
Powerful hydraulic system combined with a powerful boom and stick maximize productivity in any felling or harvesting job.

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 wand allows hydraulic oil to be pumped through the hydraulic filtering system and into the tank. This reduces maintenance down time and helps to maintain oil cleanliness requirements.

Variable Displacement Pump
All Cat® 500 series FTS Track Feller Bunchers are equipped with 200 cc variable displacement pump for travel, a 200 cc boom and implement functions, and a dedicated 55 cc variable displacement pump for felling attachments. Optional hydraulics for dangle harvesting or processor heads and intermittent saw heads are available for all models.

Caterpillar® Hydraulic Oil
Provides maximum protection against mechanical and corrosive wear in all hydraulic systems. It’s high zinc content reduces wear, and extends pump life. Provided certain requirements are met (e.g. S•O•SSM analysis every 500 hours), the hydraulic oil change interval is extended from 2,000 hours to 4,000 hours.

Biodegradable Hydraulic Oil
The optional biodegradable hydraulic oil (HEES) is formulated to provide excellent high-pressure and high-temperature characteristics and is fully compatible with the all hydraulic components. HEES is fully decomposed by soil or water microorganisms, providing a more environmentally-sound alternative to mineral-based oils.

ToughGuard Hoses™
Abrasion resistant hoses along the boom and stick provide strength and flexibility. The ToughGuard cover consists of a thin layer of UHMW polyethylene bonded to the rubber cover, providing exceptional abrasion resistance. In many applications, it eliminates the need for external guarding.

Operator Comfort
The interior layout maximizes operator space, provides exceptional comfort and reduces operator fatigue.

Cab design optimizes post structures and window placement to provide excellent operator visibility to front, sides and rear. Standard 1.25" thick “Margard” front window maximizes operator protection. All purpose built forestry cabs are designed with heavy-duty guarding, meeting FOPS/ROPS/OPS requirements.

Fresh Air
Large sliding side window with screen to allow fresh air into cab.

Interior Operator Station
The operator station is quiet with conveniently placed controls, joysticks and an ergonomically designed seat reducing operator fatigue.

Quiet Operation
Isolation mounted cab and engine reduces sound levels and vibration for quiet and comfortable operation.

Large Storage Compartment
A large storage space behind the seat, provides sufficient room for a lunch box, hard hats and work tools.

IQAN display allows the operator to continuously monitor the operating systems of the machine. This provides early warning for potential problems, and allows the operator to adjust control parameters maximizing performance and productivity.

Control Convenience
Each control is placed within easy reach of the operator. Joysticks control the implement and attachment functions, providing easy operation.

Foot Pedals
Ergonomically located pedals with side-by-side foot rests provide for maximum operator comfort while operating machine travel.

A unique large polycarbonate skylight provides excellent upward visibility, and acts as an alternate escape hatch.

Electrical System
24-volt electrical system with in-cab 24-12 volt converter, dual in-cab 12 volt power points and one 24 volt power point. Power is provided by two 12 volt maintenance free batteries and 95 amp alternator. An optional cold weather starting attachment may be selected to provide two additional batteries, a HD starter, and HD cables.

Leveling System
Tilting mechanism provides stability and comfort in steep slope conditions.

Tilt Mechanism
With the most robust tilt mechanism in the industry, the FTS 552 tilter has a patented 3-cylinder tilt mechanism with simultaneous tilting forward and side-to-side. Trunion cylinders are mounted on 2" (51 mm) steel plates and transfer vertical loads down to the interface of the track frames and carbody, putting the load into the track and ground.

Three-cylinder tilt mechanism with simultaneously 20 degree forward tilt and 11 degree side-to-side tilt.

Ground Clearance
FTS machines have excellent ground clearance and open carbody design. This provides increased mobility by eliminating debris interference and other obstacles encountered in rugged working conditions.

High quality custom engineered, heavy duty forestry undercarriage.

Precision welded, high-wide carbody has strong frames that reduce flexing and increase reliability of rollers and track links throughout the life of the machine. Nine bottom rollers per side.

Travel Motor
Proven final drives and travel motors provide up to 104,000 lb (47174 kg) of tractive effort on the 552 giving excellent traction and power to the ground.

Track Guards
All models contain bolt-on track guards.

Leveling 552 model features a bolted track frame to carbody design. This provides a standard gauge width, or allows adjustment to a wide gauge width to improve machine stability, and increase productivity on steep slope applications.

Boom and Stick
Designed for maximum reach and lift capacity.

With up to 21,800 lbs (9400 kg) of bare pin lift capacity at 21.5' (6.6 m) on the 552 track feller buncher (with the standard linkage), the 500 series machines are dominant over competitors in their size classes. With market leading lift capacity, 28.8' (8.6 m) of reach, and tight stick tuck-in capabilities, these machines deliver high performance felling in all applications. The 552 track harvester delivers the same high performance with 12,500 lbs (5700 kg) of bare pin lift capacity and 37' (11.3 m) of maximum reach, while the 552 long felling linkage delivers 16,900 lbs (7700 kg) of bare pin lift capacity at 32' (9.7 m).

Caterpillar® disc saw attachments are available to meet felling needs.

From plantation thinning to select cut of large diameter wood, Cat felling attachments provide reliable productive felling solutions. These range in cut capacity from 22" to 24". Designed to allow maximum visibility of the cutting area, all saws utilize high pressure hydraulics for fast saw recovery and quick arm speed. This provides a positive impact on production and better tree control.

All models are available with a standard 40 degree partial lateral tilt, or an optional 220 degree full lateral tilt.

Owning and Operating Costs
Cat® 500 Series Track Feller Bunchers and Track Harvesters provide the best value for your operation.

ACERT Technology Fuel Economy
Based on Caterpillar® 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 just the right amount of fuel as needed.

Clam-Shell Service Doors
The hydraulically actuated clam-shell service doors provide easy and quick access reducing machine maintenance time. Less service time means less down time, more work time and greater productivity.

Extended Service intervals and easy access reduce operating costs.

Extended Service Intervals
Caterpillar® service and maintenance intervals have been extended to reduce machine service time, increase machine availability and reduce operating costs. Hydraulic oil change intervals can be extended from 2,000 hours to 4,000 hours. Engine coolant change intervals are 12,000 hour with Cat Extended Life Coolant/Anti-freeze. Regularly scheduled maintenance extends machine service life and lowers overall operating costs. 500-hour oil change interval reduces overall maintenance costs.

Flexxaire™ Fan
Standard Flexxaire fan operates only when required and allows the cooling fan to purge debris from the radiator area, reducing cleaning maintenance time.

Clam-Shell Service Doors
The hydraulically actuated clam-shell service doors provide easy and quick access reducing maintenance down time.

Customer Focus
Cat® dealer services help you operate longer with lower costs.

Product Support
Your Cat® dealer will help provide you with parts quickly and efficiently by utilizing the Cat worldwide dealer network parts system, minimizing downtime.

Machine Selections
Make detailed comparisons of the machines you are considering before you buy. What are job requirements, machine attachments and operating hours? What production is needed? Your Cat dealer can provide recommendations.

Consider the financing options available as well as day-to-day operating costs. This is also the time to look at dealer services that can be included in the cost of the machine to yield lower equipment owning and operating costs over the long run.

Customer Support Agreements
Cat dealers offer a wide variety of product support agreements, and work with customers to develop a plan that best meets specific needs. These plans can help protect your investment.

Improving operating techniques can boost your profits. The Cat Forest Products Consulting Services Group offers certified operator training classes to help maximize the return on your machine investment.

Maintenance Services
Repair option programs guarantee the cost of repairs up front. Diagnostic programs such as S•O•SSM Analysis and Coolant Sampling and Technical Analysis help avoid unscheduled repairs.

Repair, rebuild or replace? Your Cat dealer can help you evaluate the cost involved so you can make the right choice.

Standard Equipment

  • 24-volt electrical system
  • 2-12 volt maintenance free batteries
  • 95 Amp alternator
  • IQAN programmable controls
  • MDL large screen display
  • Twin hydraulically actuated hinged engine enclosure with warning alarm
  • Engine fan guard
  • Bottom guards
  • Isolation mounted cab and engine
  • Heavy duty radiator guard door
Operator Environment
  • Dual joystick control
  • Reverse slope windshield
  • Air ride seat
  • Skylight - alternate escape hatch
  • Top escape hatch
  • 3 inch retractable seat belt
  • Heater/air conditioner w/climate control
  • DIN mount radio ready with speakers
  • Operator sound suppression to standards
  • Travel alarm
  • Cup holders (2)
  • 2-12 volt and 1-24 volt power outlets
  • Front Window, 1.25 in Thick Margard
  • C9 ACERT engine meets Tier 2 emissions requirements
  • Infinitely variable travel speed
  • Under hood centrifugal precleaner and primary air filter
  • Heavy-duty cooling package
  • Electric fuel priming pump
  • Track roller guards with access holes
  • Hydraulic track adjusters
  • Double flange bottom rollers
  • Caterpillar® 330 HEX bolted, non-leveling carbody, variable gauge
  • GFT 80 final drives
Other Standard Equipment
  • Vandalism protection
  • Spare hose storage area
  • Storage area
  • Flexxaire™ Fan
  • Fuel water separator
  • 312 US gallon fuel tank
  • Dedicated fixed displacement pilot pump
  • Dedicated variable displacement pumps for track and implement functions
  • 30 gpm variable displacement saw pump
  • Cat® 325C swing drive and swing motor
  • Electric hydraulic oil fill pump
  • 84 US gal hydraulic tank
  • 50% concentration extended life coolant

Optional Equipment

Track Systems
  • 24" SG pads, clipped corners, with mud/snow reliefs
  • 28" SG pads, clipped corners, with mud/snow reliefs
  • 28" DG pads, with mud/snow reliefs
  • Star carrier Rollers
  • Standard Single Flange carrier Rollers
Other Equipment
  • Starting Aid, Cold Weather
  • Starting Aid, Arctic - Includes engine and hydraulic heaters
Field Installed Attachments
  • CD Player with AM/FM Stereo - remote capable
  • Skylight, peaked, removable
  • Loose Linkage Arrangements



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