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.

Forest Machines FM528 GF/FM528 LL

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Key Specs

Engine Model: Cat C4.4; Cat C4.4

Net Power - ISO 9249: 170 hp; 127 kW

Engine Power - ISO 14396: 173 hp; 129 kW

FM528 GF/FM528 LL
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Overview

Adaptable Forest Machine Built for Application Versatility

The Cat® FM528 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.

Benefits

Built for Operators

The certified side-entry Forestry ROPS cab is engineered for operator safety and features a wide door and a tilt-up armrest. A 32mm (1.25”) polycarbonate front safety window and smaller cab pillars enhance jobsite and work task visibility.

Multiple Configurations

A handy addition to any fleet, the FM528 is the first Cat Forest machine to offer a fixed or live heel or blade option for versatile application.

This multi-configuration machine has options for a processor, roadbuilder, log loader, and knuckleboom loader controls. It can go to work in the woods or the millyard to boost productivity and profitability.

The narrow, high, long undercarriage improves productivity by allowing easy transport and in woods travel between worksites.

Low Owning and Operating Costs

The Cat® C4.4 173 hp (129kW) engine and electrohydraulic system help drive fuel reduction and enable high-performance responses within the system to optimize operations.

The efficient engine and hydraulic system cooling E-Fans with reverse capability improve engine efficiency by controlling engine temperatures.

Cat® Long-life fuel and hydraulic oil filters with extended service intervals reduce maintenance costs.

Features At A Glance

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

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. Dashboards provide information such as hours, miles, location, idle time, and fuel utilization. Make informed decisions that lower costs, simplify maintenance, and improve safety and security on your jobsite.
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.

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.

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.
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 (6’1/2”) 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.

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.

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 knuckleboom 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

The General Forestry model is ideal for road work, grappling, processing, and delimbing.
With a reach boom and quick coupler, you can equip the FM528 with a processor, bucket, thumb, mulcher, and other attachments to get work done quickly and efficiently.
A frontless option allows you to customize the machine to fit your applications.

Log Loader

The log loader configuration is ideal for truck loading, power clam applications, and millyard work.
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.
An overmounted heel cylinder provides maximum clearance to load trucks and increases lift height for millyard applications.
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.

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∙S 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.
The diesel particulate filter requires no maintenance.
Fuel and engine oil filters are synchronized to be changed at 1,000 hours.
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.

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.
The monitor’s slope and grade indicator tell you the machine's position to help optimize its performance.
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.

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) or ULSD blended with the following lower-carbon intensity fuels*** up to: 20% biodiesel FAME (fatty acid methyl ester)** or 100% renewable diesel, HVO (hydrogenated 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.
Extended maintenance intervals reduce downtime and decrease the amount of fluid and filters that are replaced over the machine's life.
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 Services* is a suite of technologies that improve your jobsite efficiency. Remote Troubleshoot allows your Cat dealer to perform diagnostic testing on your connected machine remotely, pinpointing potential issues while the machine is in operation.
Remote Troubleshoot ensures the technician arrives with the correct parts and tools the first time, eliminating additional trips to save you time and money.
Remote Flash updates on-board software without a technician being present, potentially reducing update time by as much as 50%. You can initiate the update when convenient, increasing your overall operating efficiency.

*Must be within cell range coverage. The Cat App helps you manage your assets – at any time – right from your smartphone. You can see your fleet location, hours, and other information you need to see. You will get critical alerts for required maintenance, and you can even request service from your local Cat dealer.

**Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).

***Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.

Specifications Standard Equipment Optional Equipment

Product Specifications for FM528 GF/FM528 LL

Engine

Engine Model	Cat C4.4 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 B20¹
Emissions	Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. 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. 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) or 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. Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).* Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or 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. Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).* Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.

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 gal/min 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 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 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. 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 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 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. 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.

FM528 GF/FM528 LL 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

High-resolution touchscreen monitor

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 Services Capability

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

Biodiesel capability up to B20

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

High torque swing drive

Swing cushion valve

Tool control software

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

Travel alarm

Swing alarm

Ground-level secondary engine shutoff switch

Reaview camera

Hydraulic lock out lever

SERVICE AND MAINTENANCE

Integrated vehicle health management system

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

FM528 GF/FM528 LL 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

B1 family bucket linkage

CAT TECHNOLOGIES

VisionLink Productivity (VisionLink subscription required)

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

Ground saw hydraulics

SAFETY AND SECURITY

Storage tray in pump room

Right-hand sideview camera

UNDERCARRIAGE AND STRUCTURES

700 mm (28 in) Triple and Double grouser shoes, for High-LC (D5 type link)

760 mm (30 in) Triple grouser shoes, for High-LC (D5 type link)

700 mm (28 in) Triple and Double grouser shoes, for SD-LC (326 track link)

600 mm (24 in) Double grouser shoes, for High-LC (D5 type link)

Severe Duty - Long Under Carriage

High - Long Under Carriage with 7.5" pitch

2980 mm (9'9") blade

3170 mm (10'5") blade

CAB

Side entry with 165 mm (6.5") fixed riser

Side entry 1219 mm (48") tilting riser

CB radio mounts

Cat Stick Steer

Auxiliary relay

Retractable sunshade

Product Specifications for FM528 GF/FM528 LL

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Engine

Engine Model	Cat C4.4 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 B20¹
Emissions	Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. 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. 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) or 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. Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).* Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or 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. Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).* Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.

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 gal/min 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 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 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. 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 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 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)

FM528 GF/FM528 LL 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

High-resolution touchscreen monitor

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 Services Capability

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

Biodiesel capability up to B20

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

High torque swing drive

Swing cushion valve

Tool control software

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

Travel alarm

Swing alarm

Ground-level secondary engine shutoff switch

Reaview camera

Hydraulic lock out lever

SERVICE AND MAINTENANCE

Integrated vehicle health management system

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

FM528 GF/FM528 LL 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

B1 family bucket linkage

CAT TECHNOLOGIES

VisionLink Productivity (VisionLink subscription required)

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

Ground saw hydraulics

SAFETY AND SECURITY

Storage tray in pump room

Right-hand sideview camera

UNDERCARRIAGE AND STRUCTURES

700 mm (28 in) Triple and Double grouser shoes, for High-LC (D5 type link)

760 mm (30 in) Triple grouser shoes, for High-LC (D5 type link)

700 mm (28 in) Triple and Double grouser shoes, for SD-LC (326 track link)

600 mm (24 in) Double grouser shoes, for High-LC (D5 type link)

Severe Duty - Long Under Carriage

High - Long Under Carriage with 7.5" pitch

2980 mm (9'9") blade

3170 mm (10'5") blade

CAB

Side entry with 165 mm (6.5") fixed riser

Side entry 1219 mm (48") tilting riser

CB radio mounts

Cat Stick Steer

Auxiliary relay

Retractable sunshade

Compatible Technology and Services

Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.

Equipment Management

Cat Remote Flash

Remote Flash sends an alert from your Cat dealer, prompting you to update the software on your machine. To minimize downtime, updates can be deployed while on the jobsite without having to wait for a dealer technician to arrive. Remote flash decreases maintenance time and keeps your asset running with maximum efficiency.

Explore Technology
Cat Remote Troubleshooting

Remote Troubleshoot allows your Cat dealer to run testing while the machine is operating. Once the problem is identified, a technician can fix it with the correct parts and tools the first time, saving time and money. Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency.

Explore Technology
VisionLink®

VisionLink® is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.

Explore Technology

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Remote Flash sends an alert from your Cat dealer, prompting you to update the software on your machine. To minimize downtime, updates can be deployed while on the jobsite without having to wait for a dealer technician to arrive. Remote flash decreases maintenance time and keeps your asset running with maximum efficiency.

Explore Technology

Remote Troubleshoot allows your Cat dealer to run testing while the machine is operating. Once the problem is identified, a technician can fix it with the correct parts and tools the first time, saving time and money. Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency.

Explore Technology

VisionLink® is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.

Explore Technology

See how FM528 GF/FM528 LL compares against frequently compared products.

Forest Machines

Selected

FM528 GF/FM528 LL

Engine Model: Cat C4.4; Cat C4.4
Net Power - ISO 9249: 170 hp; 127 kW
Engine Power - ISO 14396: 173 hp; 129 kW

Forest Machines

FM568 GF/FM568 LL Cat® FM568 GF/FM568 LL

Engine Model: Cat C9.3B; Cat C9.3B
Net Power - ISO 9249: 346 hp; 257.9 kW
Engine Power - ISO 14396: 347 hp; 259 kW

View Details

Forest Machines

FM538 GF/FM538 LL

Engine Model: Cat C7.1; Cat C7.1
Net Power - ISO 9249: 172 hp; 129 kW
Engine Power - ISO 14396: 174 hp; 129 kW

View Details

Tools And Expert Help At Every Turn

Payment Calculator

Current Offers

Rental Options

Used Options

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Forest Machines FM528 GF/FM528 LL

Overview

Adaptable Forest Machine Built for Application Versatility

Benefits

Built for Operators

Multiple Configurations

Low Owning and Operating Costs

Features At A Glance

Product Specifications for FM528 GF/FM528 LL

Engine

Drive

Hydraulic System

Swing Mechanism

Weights

Service Refill Capacities

Dimensions

Working Ranges

Air Conditioning System

FM528 GF/FM528 LL Standard Equipment

NOTE

CAB

CAT TECHNOLOGIES

ELECTRICAL SYSTEM

ENGINE

HYDRAULIC SYSTEM

SAFETY AND SECURITY

SERVICE AND MAINTENANCE

UNDERCARRIAGE AND STRUCTURES

FM528 GF/FM528 LL Optional Equipment

NOTE

BOOMS AND STICKS

CAT TECHNOLOGIES

ELECTRICAL SYSTEM

ENGINE

HYDRAULIC SYSTEM

SAFETY AND SECURITY

UNDERCARRIAGE AND STRUCTURES

CAB

Product Specifications for FM528 GF/FM528 LL

Engine

Drive

Hydraulic System

Swing Mechanism

Weights

Service Refill Capacities

Dimensions

Working Ranges

Air Conditioning System

FM528 GF/FM528 LL Standard Equipment

NOTE

CAB

CAT TECHNOLOGIES

ELECTRICAL SYSTEM

ENGINE

HYDRAULIC SYSTEM

SAFETY AND SECURITY

SERVICE AND MAINTENANCE

UNDERCARRIAGE AND STRUCTURES

FM528 GF/FM528 LL Optional Equipment

NOTE

BOOMS AND STICKS

CAT TECHNOLOGIES

ELECTRICAL SYSTEM

ENGINE

HYDRAULIC SYSTEM

SAFETY AND SECURITY

UNDERCARRIAGE AND STRUCTURES

CAB

Compatible Technology and Services

Cat Remote Flash

Cat Remote Troubleshooting

VisionLink®

See how FM528 GF/FM528 LL compares against frequently compared products.

Tools And Expert Help At Every Turn

Payment Calculator

Current Offers

Rental Options

Used Options

Find Dealer

assignment Product Brochures and More Are Ready to Download!

Product Brochures and More Are Ready to Download!