FM528 GF/FM528 LL

FM528GF/FM528 LL

The Cat® FM528 forest machine offers a fixed heel or live heel and blade for versatile application. Includes a processor, roadbuilder, log loader and knckleboom loader.

Cat® FM528 General Forestry and Log Loader Machine

DESCRIPTION

The Cat® FM528 handles clearing, mulching, and timber with stability and comfort. VisionLink™ and Cat forestry tools boost uptime, backed by dealer service and parts support.

The Cat® FM528 General Forestry (GF)/FM528 Log Loader (LL) Forest Machine is a versatile forestry excavator engineered for the lumberjack of all trades. From land clearing to fire clean-up, chipper + grinder loading, mulching, processing, and more, this adaptable forest machine is ready to go to work for your fleet. Built for the operator, it is equipped with the Next Gen side-entry forestry cab for premium visibility and optimum protection.

Loren Wirkkla, second-generation owner of Southwest Concrete, shares his thoughts on the new Cat(R) FM528 Forest Machine. With decades of experience in the industry, Loren highlights how the FM528 delivers where it matters most. He appreciates its narrow transport width, making it ideal for navigating tight roads, along with its impressive fuel efficiency and agility. Loren explains why the FM528 is a great fit for their operation and how it’s setting new standards in productivity and versatility.

Jake Wirkkla, an experienced third-generation operator at Southwest Concrete in Cathlamet, Washington, gives his thoughts on the new Cat FM528 Forest Machine after putting it to the test. Jake praises the FM528 for its impressive travel power, strong swing torque, and exceptional operator comfort and visibility. In this video, Jake explains how these features make a real difference in day-to-day operations, offering operators a smoother and more efficient experience in demanding forestry and material handling tasks.

Join us as we visit Eddie Harrison, owner of Eddie, Inc., a family-owned logging operation based in Scott, Mississippi, that has been thriving since 1991. Hear from Eddie himself about how the Cat® FM528 has improved efficiency and kept his family operation running smoothly.

Meet Grady Embry, an experienced operator at Eddie, Inc. in Forest, Mississippi, who’s logged over 450 hours on the new Cat(R) FM528 Forest Machine. In this video, Grady shares his firsthand experience using the FM528 for log processing and loading. Grady highlights the machine’s stout build, impressive speed, and outstanding maneuverability, making it a reliable and efficient option for demanding forestry operations. Hear why the FM528 stands out in the field and how it performs under real-world conditions.

Join Sean Doyle, Forestry Sales Manager at Puckett Machinery in Mississippi, as he highlights the impressive design of the new FM528 Forest Machine. In this video, Sean discusses how the Cat Field Follow Program ensures real-world feedback to fine-tune equipment for peak performance, reliability, and efficiency. He also dives into the FM528’s versatile design, which adapts seamlessly to the challenging demands of forestry operations, making it a standout choice for industry professionals.

Alden Rogers, an experienced operator at Irish Family Logging in Rumford, Maine, shares his thoughts on the new Cat® FM528 Forest Machine. With its nimble design, Alden praises the FM528 for easily processing both hard and soft woods and handling impressive loads. One of his favorite features? How quickly the FM528 reaches operating temperature—this machine is ready to go when you are. Hear why Alden believes the FM528 is a game-changer for demanding forestry operations.

JR Hendershott, Forest Products and Development Manager for Peterson Cat, shares his insights on how the new Cat® FM528 fits seamlessly into the forestry lineup. Designed for tight work areas, the FM528 offers exceptional maneuverability without sacrificing the power needed to handle large logs, making it a versatile and reliable machine for any operation. JR also emphasizes Peterson Cat’s customer-first philosophy—building a trusted team that customers can rely on to keep their equipment running and their operations productive. Discover how the FM528 and Peterson Cat are setting new benchmarks for forestry solutions and customer service.

Founded in 1925, Caterpillar established the standard for tractors and construction equipment from the outset. Over the years, the company’s leaders have gained a great deal of knowledge about what works and what doesn’t. Caterpillar has grown alongside its customers, developing new products for hardworking individuals who want to push the limits. With that history comes innovation, change, creation, and learning. Caterpillar has partnerships across multiple industries and companies, continually developing and refining its understanding of how equipment should operate. Our commitment to designing and building the world’s best equipment is evident in every single product.

Latest Features

        
  • Bluetooth connectivity allows pairing mobile phone or other bluetooth device to the cab monitor and sound system.
    •     
  • Pitch and roll indicator displays the machines fore and aft position and side to side position.
    •     
  • Configuration setup for auxiliary is a breeze with assigning functions on the Cat® control handles such as radio mute, call answer, and wiper control.

Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area. Build Number: 07H

Cat® FM528GF/FM528 LL/FM528 KBL - Latest Features
Cat® FM528GF/FM528 LL/FM528 KBL - Take the Guesswork Out of Managing Your Equipment

Take the Guesswork Out of Managing Your Equipment

        
  • The latest operator oriented User Interface (UI) has been designed to maximize uptime by allowing operators to easily reorder work tool lists and quickly create new work tool combinations makes it manageable for a single person to check and adjust for bucket wear. 
    •     
  • VisionLink™ provides actionable data insights for all assets – regardless of fleet size or equipment manufacturer.* Review equipment data from your desktop or mobile device to maximize uptime and optimize assets. Equipment management features provide up-to-date asset tracking of your entire fleet. You can track asset location, operating hours, fuel level, health issues, and overall utilization. Monitor equipment health with fault codes, fluid analysis, and inspection due dates. It's all about making informed, data-based decisions to help reduce operating costs. 
    •     
  • Cat® Inspect is a mobile application that allows you to easily perform digital preventative maintenance (PM) checks, inspections, and daily walkarounds. Inspections can easily be integrated with other Cat data systems like VisionLink so you can keep a close eye on your fleet.
    •     
  • Remote Troubleshoot is a mobile application that allows your Cat dealer to perform diagnostic testing on your connected machine remotely to help resolve issues quickly and with less downtime.
    •     
  • Remote Flash is a mobile application that allows you to update onboard software without a technician being present, allowing you to initiate software updates when convenient, increasing your overall operating efficiency.
    •     
  • The Cat PL161 attachment locator allows you to track attachments across all worksites, reduce the number of lost attachments, and plan for attachment maintenance and replacement. The work tool recognition** feature automatically adjusts machine settings based on the selected tool.
    •     
  • * Data field availability can vary by equipment manufacturer.
    •     
  • ** Recognition feature available on select excavator models. Consult your Cat dealer for details.

Superior Performance

        
  • The Cat C4.4 173 hp (129 kW) engine and electrohydraulic system help drive fuel reduction and enable high-performance responses within the system to optimize operations.
    •     
  • This high-torque motor provides high power at low RPMs, minimizes downtime, reduces maintenance costs, and increases job site precision.
    •     
  • The efficient engine and hydraulic system cooling E-Fans with reversing function help remove debris, improve engine efficiency, and accurately control temperatures.
    •     
  • The e-fans provide greater coverage, so the air flows evenly over the radiator and charges the air cooler.
    •     
  • Long-life fuel and hydraulic oil filters with extended service intervals work well with the FM528’s extended service and maintenance intervals.
    •     
  • Shares common parts and services with Cat Next Generation Excavators, reducing downtime with more readily available parts.
    •     
  • Support of a world-class dealer network backed by a range of flexible solutions, technology, tools, and more.

Cat® FM528GF/FM528 LL/FM528 KBL - Superior Performance
Cat® FM528GF/FM528 LL/FM528 KBL - Unmatched Operator Comfort

Unmatched Operator Comfort

        
  • Next Generation Certified Forestry ROPS side-entry cab is engineered for operator safety and features a wide door and a tilt-up armrest.
    •     
  • 32mm (1.25”) polycarbonate front safety window and smaller cab pillars enhance jobsite and work task visibility.
    •     
  • The dual HVAC system keeps operators comfortable in cold and warm weather.
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  • A wide heated and cooled air-suspension seat makes year-round work more pleasant.
    •     
  • All controls are within easy reach to reduce twisting and turning and keep you focused on the work area.
    •     
  • Cab risers — 165 mm (6.5") fixed or 1219 mm (48”) hydraulic tilt — are available to meet your work needs.
    •     
  • Stow your gear with in-cab storage beneath, behind the seat, and in the consoles.
    •     
  • Use the standard radio’s USB ports and Bluetooth® technology to connect personal devices and make hands-free calls.

Simple Operation

        
  • Cat® continues to improve user interface functionality for operators of all skill levels. The touchscreen monitor is an easy-to-use operating tool that presents the jobsite dashboard with an intuitive format. 
    •     
  • The Cat PL161 attachment locator is a Bluetooth device designed to let users know where their attachments are across all worksites, reduce the number of lost attachments, and plan for attachment maintenance and replacement. The PL161 integrates easily into VisionLink™ for full fleet management of machines and attachments from one smartphone or tablet dashboard to view location and tracking details.
    •     
  • Start the engine with a push button or use a Bluetooth key fob or the unique Operator ID function.
    •     
  • Navigate quickly on the optional high-resolution 203 mm (8 in) or 254 mm (10 in) touchscreen monitor.
    •     
  • Make moving the excavator much easier with the optional Cat® Stick Steer. Push a button and use one hand to travel and turn instead of both hands or feet on levers or pedals.
    •     
  • Not sure how a function works or how to maintain the machine? Always have the operator’s manual at your fingertips in the touchscreen monitor.
    •     
  • Optional auxiliary relay powers on and turns off CB radios and other attachments without you taking your hands off the joysticks.

Cat® FM528GF/FM528 LL/FM528 KBL - Simple to Operate
Cat® FM528GF/FM528 LL/FM528 KBL - Versatile Configuration

Versatile Configurations

        
  • A handy addition to any fleet, the FM528 is the first Cat Forest machine to offer a fixed or live heel and blade option for versatile application.
    •     
  • This multi-configuration machine includes a processor, roadbuilder, log loader, and provides optional knuckle boom controls. It can go to work in the woods or the millyard to boost productivity and profitability.
    •     
  • The optional narrow, high, long undercarriage allows easy transport and in-woods travel between worksites and improves productivity.
    •     
  • General Forestry
        
  1. The General Forestry model is ideal for road work, grappling, processing, and delimbing.
    2.     
  2. With a reach boom and quick coupler, you can equip the FM568 with a processor, bucket, thumb, mulcher, and other attachments to get work done quickly and efficiently.
    3.     
  3. A frontless option allows you to customize the machine to fit your applications.
        
  • Log Loader
        
  1. The log loader configuration is ideal for truck loading, Butt-n-Top loading, power clam applications, and millyard work.
    2.     
  2. An under-mounted heel cylinder provides maximum force for shovel logging with a Cat grapple. A variable displacement pump delivers high-flow rotating capability for heel and log grapples and Power Clam and Butt-n-Top grapples.
    3.     
  3. An overmounted heel cylinder provides maximum clearance to load trucks and increases lift height for millyard applications.
    4.     
  4. The optional fixed heel log loader with integrated drop nose stick effectively extends your reach from a stationary point, allowing the operator to lift logs without needing to move the machine.
        
  • Rugged, reliable, simple-to-service Cat forestry grapples range in size from 1322 mm (52") to 1524 mm (60").
    •     
  • Triple grouser shoes are available to provide high maneuverability while minimizing disturbance in soft, wet underfoot conditions.

Easy Maintenance

        
  • Boost productivity with proactive service reminders. The Integrated Vehicle Health Management system alerts the operator with step-by-step service guidance and the parts needed so you don't experience unnecessary downtime.
    •     
  • Using Cat® genuine oil and filters and doing typical  S∙O∙SSM monitoring will extend the current service interval, giving you greater uptime to do more work.
    •     
  • S·O·S ports simplify maintenance and allow for quick, easy extraction of fluid samples for analysis.
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  • The diesel particulate filter requires no maintenance.
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  • Fuel and engine oil filters are synchronized to be changed at 1,000 hours.
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  • The latest hydraulic oil filter provides high-quality filtration performance, anti-drain valves to keep oil clean when the filter is replaced, and the extended replacement interval offers efficiency and convenience.

Cat® FM528GF/FM528 LL/FM528 KBL - Easy Maintenance
Cat® FM528GF/FM528 LL/FM528 KBL - Safely Home Every Day

Safely Home Every Day

        
  • The cab meets applicable industry standards for ROPS/FOPS/OPG and protects the operator inside the cab.
    •     
  • Access most routine maintenance points at ground level.
    •     
  • The right-hand service platform design provides easy, safe, and quick access to the upper service platform; the service platform steps use an anti-skid punch plate to prevent slipping. Handrails are provided for easy access.
    •     
  • 32mm (1.25”) polycarbonate safety front window and smaller cab pillars enhance jobsite and work task visibility.
    •     
  • Standard rearview camera enhances jobsite visibility; right-hand-sideview camera is optional.
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  • The monitor’s slope and grade indicator tell you the machine's position to help optimize its performance.
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  • A signaling/warning horn and travel alarm enhance jobsite safety.
    •     
  • Add optional inspection lighting to illuminate the engine, pump, battery, and cooling compartments, making service work more accessible.

Attachments

Tackle your jobs with a complete Cat® solution. Cat attachments are not just accessories – they are essential tools that define what your machine can do. When you pair a Cat excavator with Cat attachments, you unlock a fully integrated system built for performance, durability, and efficiency. Whether you are clearing land, breaking concrete, or compacting soil, the right attachment transforms your excavator into a powerful, multi-purpose tool ready for any challenge. Depending on your project or application, you could benefit from excavator attachments such as:

        
  • Buckets: Handle everything from digging and grading to cleanup and debris removal with your excavator. Caterpillar® offers general duty, heavy duty, extreme duty, and severe duty buckets, as well as specialized designs for ditch cleaning, rock, and finishing work. Reinforced edges and wear-resistant materials ensure long-lasting performance in tough conditions.
    •     
  • Pin Grabber: Offer fast, secure attachment changes and are compatible with a wide range of tools. Ideal for operators who need flexibility on the job site, they allow switching between buckets, hammers, and grapples. Features a redundant locking system to keep your attachments in place and protect them from damage.
    •     
  • CW Quick Couplers: Rugged, wedge-style quick couplers built to increase the utilization of your excavator. Designed to fit your machine and application needs, Caterpillar® offers a series of CW couplers in mechanical and hydraulic versions. Ideal for contractors who prioritize a strong, simple locking system for frequent attachment changes.
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  • S-Type Couplers: A pin grabber-style dedicated coupler, S-Type Couplers feature a narrow, lightweight design for improved performance. They offer precision, flexibility, and are ideal for fleets needing consistent attachment interchangeability.
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  • Hydraulic Connecting S-Type (HCS) Couplers: HCS Couplers offer automatic hydraulic connection with the compact, low-profile design of the S-Type. With advanced functionality such as full hydraulic and electronic connection, hydromechanical attachments are connected and ready to operate in seconds.
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  • Performance Hammers: Built for high-demand applications, performance hammers deliver maximum impact energy and fast cycle times for breaking concrete, rock, and asphalt. Ideal for heavy-duty demolition, quarrying, and production environments where speed and power are critical.
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  • GC S Hammers: Simplified, silenced models designed for noise-sensitive environments. They maintain solid performance while reducing sound levels, making them ideal for urban job sites, residential areas, and regulated zones. Ideal for site prep, light demolition, foundry and quarry applications.
    •     
  • Mulchers: Ideal for forestry and agriculture applications. Mulchers clear land and manage vegetation by shredding brush, trees, and undergrowth into fine mulch. Their high-speed rotors deliver fast, consistent results, with interchangeable teeth to suit different materials and desired final mulch size.
    •     
  • Orange Peel Grapples: Built for scrap and bulk material handling, Orange Peel Grapples excel with irregular, heavy loads like metal, rock, and waste. Their hydraulic tines provide superior grip and penetration. High-capacity and continuous rotation are perfect for scrap yards and transfer stations. Caterpillar® offers these grapples with a choice of different shell designs and tine options suited to various applications.

Cat® attachments are engineered to maximize your excavator’s productivity, helping you get more work done with greater efficiency and confidence. Choosing the right attachment is not just about compatibility, it is about unlocking your machine’s full potential while avoiding equipment damage or safety risks. Connect with your Cat Dealer to find the optimal attachments for your specific machine and application needs.
​​​​​​
Not all attachments are available in all regions. Contact your Cat Dealer for details.
 

Cat® FM528GF/FM528 LL/FM528 KBL - Attachments
Cat® FM528GF/FM528 LL/FM528 KBL - Sustainability

Sustainability

        
  • The Cat® C4.4 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
    •     
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
    •     
  • Auto Engine Speed Control reduces unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
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  • Extended maintenance intervals reduce downtime and decrease the amount of fluid and filters that are replaced over the machine's life.
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  • Cat® VisionLink displays the CO2 emissions for monitored assets, calculated by fuel type for the Runtime Fuel Burned each day in a selected date range.
    •     
  • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.

*While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. 
**Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. 
***Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of  blends higher than 20% biodiesel, consult your Cat dealer).

  • Standard Equipment
  • Optional Equipment
  • Specs
  • Docs

Standard Equipment

  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • CAB
    • ROPS Forestry cab with polycarbonate windows
    • 4-point harness seat belt
    • Heated and cooled seat with air-adjustable suspension
    • Integrated joysticks
    • Tilt-up left-side console
    • Bluetooth® integrated radio (including USB, aux port and microphone)
    • 12V DC outlets
    • Keyless push-to-start engine control
    • Automatic bi-level air conditioner
    • LED dome and floor lights
    • Windshield wiper and washer
    • Behind seat storage
  • CAT TECHNOLOGIES
    • VisionLink™
    • Remote Flash
    • Remote Troubleshoot
  • ELECTRICAL SYSTEM
    • Maintenance-free 1000 CCA batteries (x4)
    • Centralized electrical disconnect switch
    • 200-amp alternator
    • 24-volt electric starting
    • Pre-start monitoring system
    • Horn and travel alarm
    • Tool control software
    • Secondary engine shut off switch
  • ENGINE
    • Electric fuel priming pump
    • Three selectable modes: Power, Smart, Eco
    • Automatic engine speed control
    • Automatic engine idle shutdown
    • Up to 4600m (15,092 ft) altitude capability
    • 48° C (118° F) high-ambient cooling capacity
    • -32° C (-25° F) cold start capability
    • Hydraulic reverse fan
    • Two-stage fuel filter system
    • Double element air filter with integrated pre-cleaner
  • HYDRAULIC SYSTEM
    • Boom and stick regeneration circuits
    • Boom and stick drift reduction valve
    • Electronic main control valve
    • Automatic hydraulic oil warm up
    • Automatic swing parking brake
    • High performance hydraulic return filter
    • Automatic two speed travel
    • Bio hydraulic oil capability
    • Swing cushion valve
    • Tool control software
    • Tandem type electronic main pump
    • Fully pressurized hydraulic system
  • SAFETY AND SECURITY
    • Caterpillar One Key security system
    • Lockable service doors
    • Lockable fuel cap and hydraulic tank
    • Right-hand rail and hand hold
    • Signaling/warning horn
    • Ground-level secondary engine shutoff switch
    • Reaview camera
    • Hydraulic lock out lever
  • SERVICE AND MAINTENANCE
    • Side-entry service platform
    • Grouped location for engine oil and fuel filters
    • Ground level dipstick for engine oil
    • Scheduled Oil Sampling (S·O·S℠) ports
  • UNDERCARRIAGE AND STRUCTURES
    • Tie down points
    • Heavy-duty travel motor guards
    • Heavy-duty bottom guards
    • Full length track guiding guards
    • Heavy-duty recoil springs
    • Heavy-duty hydraulic swivel guard
    • Straddle mounted carrier rollers

Optional Equipment

  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • BOOMS AND STICKS
    • 5.7 m (18'7") Reach boom
    • 5.9 m (19'6") Straight boom
    • 2.9 m (9'6") Thumb-ready stick
    • 3.7 m (12'2") Drop Nose stick
    • 3.5 m (11'6") Under/Under stick
    • 3.8 m (12'6") Over/Under stick
    • 5.8 m (19'2") MH stick
  • CAB
    • Side entry with 165 mm (6.5") fixed riser
    • Side entry 1219 mm (48") tilting riser
    • High-resolution touchscreen monitor 203 mm (8")
    • High-resolution touchscreen monitor 254 mm (10")
    • CB radio mounts
    • Rear sunshade
  • ELECTRICAL SYSTEM
    • Premium lighting - General Forestry - 6 additional LED lights
    • Premium lighting - Log Loader - 10 additional LED lights
  • ENGINE
    • Cold start package with block heaters and ether assist
  • HYDRAULIC SYSTEM
    • Medium pressure circuit
  • SAFETY AND SECURITY
    • Storage tray in pump room
    • Right-hand sideview camera
  • UNDERCARRIAGE AND STRUCTURES
    • Severe Duty - Long undercarriage
    • High - Long undercarriage (with 7.5" pitch)
    • Catwalks
    • 600 mm (24 in) Double grouser shoes, for High-LC (D5 type link)
    • 700 mm (28 in) Triple and Double grouser shoes, for High-LC (D5 type link)
    • 700 mm (28 in) Triple and Double grouser shoes, for SD-LC (326 track link)
    • 760 mm (30 in) Triple grouser shoes, for High-LC (D5 type link)
    • 2980 mm (9'9") blade
    • 3170 mm (10'5") blade

Specs

Overview

Long Name:
FM528GF/FM528 LL
Name:
FM528 GF/FM528 LL
Brand:
Caterpillar
Status:
Current

Engine

Engine Model
Cat C4.4
Net Power - ISO 9249
170 hp / 127 kW
Engine Power - ISO 14396
173 hp / 129 kW
Net Power - ISO 9249 (DIN)
173 hp (metric) / 173 hp (metric)
Engine Power - ISO 14396 (DIN)
175 hp (metric) / 175 hp (metric)
Bore
4 in / 105 mm
Stroke
5 in / 127 mm
Displacement
269 in³ / 4.4 l
Biodiesel Capability
B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Note (1)
Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 2,200 rpm. Advertised power is tested per the specified standard in effect at time of manufacture.
Note (2)
¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *** Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).

Drive

Maximum Travel Speed
3.5 mile/h / 5.7 km/h
Maximum Drawbar Pull
45187 lbf / 201 kN

Hydraulic System

Main System - Maximum Flow
113 gpm / 429 L/min
Maximum Pressure - Equipment
5076 psi / 35000 kPa
Maximum Pressure - Equipment - Lift Mode
5511 psi / 38000 kPa
Maximum Pressure - Travel
5076 psi / 35000 kPa
Maximum Pressure - Swing
3989 psi / 27500 kPa

Swing Mechanism

Swing Speed
11 r/min / 11 r/min
Maximum Swing Torque
60480 lbf·ft / 82 kN·m

Weights

General Forestry
59700 lb / 27100 kg
Note (1)
High long undercarriage (High LC), 165 mm (6.5") fixed riser side entry cab (SEC) 5.7 m (18'7") reach boom, R3.7 m (12’2”) drop nose stick, 700 mm (28”) double grouser (DG) shoes, no processor head
Log Loader (U/U)
63300 lb / 28700 kg
Note (2)
High LC, 1219 mm (48") tilting riser SEC, 5.9 m (19’6”) straight boom, 3.5m (11'6") u/u stick with live heel, 700mm (28") double grouser (DG) shoes, no grapple
Forestry Road Builder
62170 lb / 28200 kg
Note (3)
High LC, 165 mm (6.5”) fixed riser SEC, 5.7 m (18'7") reach boom, R2.9 (9'7") thumb ready stick, 700mm (28") double grouser shoes, 1.2 m³ (1.6 yd³) HD bucket.
Log Loader (MH Stick)
63050 lb / 28600 kg
Note (4)
High LC, 1219 mm (48") tilting riser SEC, 5.9 m (19’6”) Straight boom, 5.8 m (19') drop nose log loader stick, 700mm (28") double grouser shoes, no grapple

Service Refill Capacities

Fuel Tank
91.1 gal (US) / 345 l
Cooling System
6.6 gal (US) / 25 l
Engine Oil
4 gal (US) / 15 l
Swing Drive
1.3 gal (US) / 5 l
Final Drive - Each
1.3 gal (US) / 5 l
Hydraulic System - Including Tank
65.6 gal (US) / 248 l
Hydraulic Tank
34.1 gal (US) / 129 l
DEF Tank
6.9 gal (US) / 26 l

Dimensions

Note (1)
General Forestry configuration with High LC, SEC with 165 mm (6.5") fixed riser, 5.7 m (18'7") Reach boom, 2.8 m (9'7") Thumb ready stick, 700 mm (28") double grouser (DG) shoes
Shipping Height - Tilted Cab
11.3 ft / 3420 mm
Handrail Height
9.8 ft / 2990 mm
Length: General Forestry - Boom Stretched Out
38.3 ft / 11690 mm
Length: Log Loader - Boom Stretched Out
44.1 ft / 13430 mm
Tail Swing Radius
9.3 ft / 2830 mm
Counterweight Clearance
3.4 ft / 1040 mm
Ground Clearance for Standard Undercarriage
1.4 ft / 435 mm
Ground Clearance for High Undercarriage
2 ft / 610 mm
Track Length
14.7 ft / 4460 mm
Track Length to Center of Rollers
11.9 ft / 3620 mm
Track Gauge
7.8 ft / 2380 mm
Transport Width
11 ft / 3350 mm

Working Ranges

Max Reach at Stick Nose at Ground Level - General Forestry Road Builder
32.3 ft / 9830 mm
Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under
36 ft / 10970 mm
Max Reach at Stick Nose at Ground Level - General Forestry Processor
29.1 ft / 8860 mm
Max Reach at Stick Nose at Ground Level – Log Loader MH Stick
38.1 ft / 11620 mm

Air Conditioning System

Note (1)
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.1 (22" Riser CAB)/2.2 (48"/72" Riser CAB) kg of refrigerant, which as a CO2 equivalent of 3.003/3.146 metric tonnes.

SEE HOW FM528 GF/FM528 LL COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.

Forest Machines
FM528 GF/FM528 LL
Cat® FM528 General Forestry and Log Loader Machine
Brand
Caterpillar
Status
Current
Engine Model
Cat C4.4
Net Power - ISO 9249
170 hp / 127 kW
Engine Power - ISO 14396
173 hp / 129 kW
Net Power - ISO 9249 (DIN)
173 hp (metric) / 173 hp (metric)
Engine Power - ISO 14396 (DIN)
175 hp (metric) / 175 hp (metric)
Bore
4 in / 105 mm
Stroke
5 in / 127 mm
Displacement
269 in³ / 4.4 l
Biodiesel Capability
B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Note (1)
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.1 (22" Riser CAB)/2.2 (48"/72" Riser CAB) kg of refrigerant, which as a CO2 equivalent of 3.003/3.146 metric tonnes.
Note (2)
High LC, 1219 mm (48") tilting riser SEC, 5.9 m (19’6”) straight boom, 3.5m (11'6") u/u stick with live heel, 700mm (28") double grouser (DG) shoes, no grapple
Maximum Travel Speed
3.5 mile/h / 5.7 km/h
Maximum Drawbar Pull
45187 lbf / 201 kN
Main System - Maximum Flow
113 gpm / 429 L/min
Maximum Pressure - Equipment
5076 psi / 35000 kPa
Maximum Pressure - Equipment - Lift Mode
5511 psi / 38000 kPa
Maximum Pressure - Travel
5076 psi / 35000 kPa
Maximum Pressure - Swing
3989 psi / 27500 kPa
Swing Speed
11 r/min / 11 r/min
Maximum Swing Torque
60480 lbf·ft / 82 kN·m
General Forestry
59700 lb / 27100 kg
Log Loader (U/U)
63300 lb / 28700 kg
Fuel Tank
91.1 gal (US) / 345 l
Cooling System
6.6 gal (US) / 25 l
Engine Oil
4 gal (US) / 15 l
Swing Drive
1.3 gal (US) / 5 l
Final Drive - Each
1.3 gal (US) / 5 l
Hydraulic System - Including Tank
65.6 gal (US) / 248 l
Hydraulic Tank
34.1 gal (US) / 129 l
DEF Tank
6.9 gal (US) / 26 l
Shipping Height - Tilted Cab
11.3 ft / 3420 mm
Handrail Height
9.8 ft / 2990 mm
Length: General Forestry - Boom Stretched Out
38.3 ft / 11690 mm
Length: Log Loader - Boom Stretched Out
44.1 ft / 13430 mm
Tail Swing Radius
9.3 ft / 2830 mm
Counterweight Clearance
3.4 ft / 1040 mm
Track Length
14.7 ft / 4460 mm
Track Length to Center of Rollers
11.9 ft / 3620 mm
Track Gauge
7.8 ft / 2380 mm
Transport Width
11 ft / 3350 mm
Max Reach at Stick Nose at Ground Level - General Forestry Road Builder
32.3 ft / 9830 mm
Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under
36 ft / 10970 mm
Selected Model
Forest Machines
FM548 GF/FM548 LL
FM548 General Forestry and Log Loader Machine
Brand
Caterpillar
Status
Current
Engine Model
Cat C7.1
Net Power - ISO 9249
271 hp / 202.4 kW
Engine Power - ISO 14396
275 hp / 205 kW
Net Power - ISO 9249 (DIN)
275 hp (metric) / 275 hp (metric)
Engine Power - ISO 14396 (DIN)
279 hp (metric) / 279 hp (metric)
Bore
4.13 in / 105 mm
Stroke
5.31 in / 135 mm
Displacement
433.3 in³ / 7.1 l
Biodiesel Capability
B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V emission standards.
Note (1)
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.1 (22" Riser CAB)/2.2 (48"/72" Riser CAB) kg of refrigerant, which has a CO2 equivalent of 3.003/3.146 metric tonnes.
Note (2)
1219 mm (48") Rear Entry Cab (REC) Riser, High Wide undercarriage, Log Loader boom, 3.76 m (12'4") Under/Under stick with live heel, 700 mm (28") double grouser shoes, no grapple.
Maximum Travel Speed
3 mile/h / 4.8 km/h
Maximum Drawbar Pull
66319 lbf / 295 kN
Main System - Maximum Flow
132.6 gpm / 502 L/min
Maximum Pressure - Equipment
5076 psi / 35000 kPa
Maximum Pressure - Equipment - Lift Mode
5511 psi / 38000 kPa
Maximum Pressure - Travel
5076 psi / 35000 kPa
Maximum Pressure - Swing
4061 psi / 28000 kPa
Swing Speed
8.1 r/min / 8.1 r/min
Maximum Swing Torque
100308 lbf·ft / 136 kN·m
General Forestry
83300 lb / 37800 kg
Log Loader (U/U)
89290 lb / 40500 kg
Fuel Tank
262 gal (US) / 990 l
Cooling System
10 gal (US) / 38 l
Engine Oil
7 gal (US) / 25 l
Swing Drive
4 gal (US) / 13.5 l
Final Drive - Each
3 gal (US) / 9.5 l
Hydraulic System - Including Tank
92 gal (US) / 348 l
Hydraulic Tank
49 gal (US) / 185 l
DEF Tank
11 gal (US) / 41 l
Shipping Height - Tilted Cab
11.5 ft / 3500 mm
Handrail Height
11.5 ft / 3500 mm
Length: General Forestry - Boom Stretched Out
41.3 ft / 12570 mm
Length: Log Loader - Boom Stretched Out
49.6 ft / 15110 mm
Tail Swing Radius
11.6 ft / 3530 mm
Counterweight Clearance
4.9 ft / 1510 mm
Track Length
16.6 ft / 5050 mm
Track Length to Center of Rollers
13.2 ft / 4020 mm
Track Gauge
9.2 ft / 2790 mm
Transport Width
11.6 ft / 3530 mm
Max Reach at Stick Nose at Ground Level - General Forestry Road Builder
29.5 ft / 8980 mm
Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under
33.5 ft / 10190 mm
More Details
Forest Machines
FM538 GF/FM538 LL
FM538 General Forestry and Log Loader Machine
Brand
Caterpillar
Status
Current
Engine Model
Cat C7.1
Net Power - ISO 9249
172 hp / 129 kW
Engine Power - ISO 14396
174 hp / 129 kW
Net Power - ISO 9249 (DIN)
175 hp (metric) / 175 hp (metric)
Engine Power - ISO 14396 (DIN)
176 hp (metric) / 176 hp (metric)
Bore
4 in / 105 mm
Stroke
5 in / 135 mm
Displacement
428 in³ / 7 l
Biodiesel Capability
B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V emission standards.
Note (1)
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 (FIX CAB)/2.0 (48" Riser CAB) kg of refrigerant, which as a CO2 equivalent of 2.574/2.860 metric tonnes.
Note (2)
High Wide undercarriage, 1219 mm (48") riser, Log Loader boom, 3.5 m (11'6") Under/Under stick with live heel, 700 mm (28") double grouser shoes, no grapple.
Maximum Travel Speed
3 mile/h / 4.9 km/h
Maximum Drawbar Pull
57551 lbf / 256 kN
Main System - Maximum Flow
124 gpm / 468 L/min
Maximum Pressure - Equipment
5076 psi / 35000 kPa
Maximum Pressure - Equipment - Lift Mode
5511 psi / 38000 kPa
Maximum Pressure - Travel
5076 psi / 35000 kPa
Maximum Pressure - Swing
4351 psi / 30000 kPa
Swing Speed
11 r/min / 11 r/min
Maximum Swing Torque
72281 lbf·ft / 98 kN·m
General Forestry
66140 lb / 30000 kg
Log Loader (U/U)
69640 lb / 31590 kg
Fuel Tank
262 gal (US) / 990 l
Cooling System
5 gal (US) / 17.5 l
Engine Oil
7 gal (US) / 25 l
Swing Drive
3 gal (US) / 11.5 l
Final Drive - Each
1 gal (US) / 4.5 l
Hydraulic System - Including Tank
69 gal (US) / 262 l
Hydraulic Tank
38 gal (US) / 143 l
DEF Tank
11 gal (US) / 41 l
Shipping Height - Tilted Cab
11.2 ft / 3400 mm
Handrail Height
10.8 ft / 3270 mm
Length: General Forestry - Boom Stretched Out
42.2 ft / 12840 mm
Length: Log Loader - Boom Stretched Out
44.9 ft / 13690 mm
Tail Swing Radius
10.3 ft / 3130 mm
Counterweight Clearance
4.2 ft / 1280 mm
Track Length
15.3 ft / 4670 mm
Track Length to Center of Rollers
158 ft / 4020 mm
Track Gauge
9.2 ft / 2790 mm
Transport Width
11.4 ft / 3490 mm
Max Reach at Stick Nose at Ground Level - General Forestry Road Builder
28.8 ft / 8800 mm
Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under
35.9 ft / 10960 mm
More Details