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Interior View

FM548 GF/FM548 LL

The Cat® FM548 is simply the best choice in its size class for doing roadbuilding, processing, and log-loading work. With 275 HP and significant hydraulic flow and swing torque increases, the superior performance and exceptional operator comfort and safety of the FM548 will help you produce day in and day out.

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Engine Model

Cat C7.1

Net Power – ISO 9249

271HP

Engine Power – ISO 14396

275HP

Net Power – ISO 9249 (DIN)

275hp (metric)

Engine Power – ISO 14396 (DIN)

279hp (metric)

Bore

4.13in

Stroke

5.31in

Displacement

433.3r/min

Biodiesel Capability

B20¹

Emissions

Meets U.S. EPA Tier 4 Final, EU Stage V 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 1,800 rpm. Advertised power is tested per the specified standard in effect at time of

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

Maximum Travel Speed

3mile/h

Maximum Drawbar Pull

66319lbf

Main System – Maximum Flow

132.6gal/min

Maximum Pressure – Equipment

5076psi

Maximum Pressure – Equipment – Lift Mode

5511psi

Maximum Pressure – Travel

5076psi

Maximum Pressure – Swing

4061psi

Swing Speed

8.1r/min

Maximum Swing Torque

100308lb/ft

General Forestry

83300lb

Log Loader (U/U)

89290lb

Fuel Tank

262gal (US)

Cooling System

10gal (US)

Engine Oil

7gal (US)

Swing Drive

4gal (US)

Final Drive – Each

3gal (US)

Hydraulic System – Including Tank

92gal (US)

Hydraulic Tank

49gal (US)

DEF Tank

11gal (US)

Note (1)

General Forestry

Shipping Height – Tilted Cab

138in

Handrail Height

138in

Length: General Forestry – Boom Stretched Out

469in

Length: Log Loader – Boom Stretched Out

595in

Tail Swing Radius

139in

Counterweight Clearance

59in

Ground Clearance

31in

Track Length

199in

Track Length to Center of Rollers

158in

Track Gauge

110in

Transport Width

139in

Max Reach at Stick Nose at Ground Level – General Forestry Road Builder

395in

Max Reach at Grapple Mount on Heel at Ground Level – Log Loader Under/Under

450in

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/

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 (side-entry cab only)
- 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
- Retractable sunshade
Cat Technologies
- VisionLink
- Remote Services Capability
Electrical System
- Maintenance-free 1000 CCA batteries (x4)
- Centralized electrical disconnect switch
- LED chassis, boom (GF), stick (LL) and cab lights
- 115-amp alternator
- 24-volt electric starting
- Horn and travel alarm
- Pre-start monitoring system
- Tool control software
- Secondary engine shutoff switch
- Cold start package with block heaters
Engine
- Electric fuel priming pump
- Three selectable modes: Power, Smart, Eco
- Automatic engine speed control
- Automatic engine idle shutdown
- Up to 4600 m (15,092 ft) altitude capability
- 52° C (126° 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 warmup
- 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
Safety And Security
- Caterpillar One Key security system
- Lockable service doors
- Lockable external tool/storage box
- Lockable disconnect switch
- Lockable fuel cap and hydraulic tank
- Service platforms with anti-skid plate and countersunk bolts
- Right-hand rail and hand hold
- Signaling/warning horn
- Ground-level secondary engine shutoff switch
- Rearview camera
- Travel alarm
Service And Maintenance
- Side-entry to service platforms
- Grouped location for engine oil and fuel filters
- Scheduled Oil Sampling (S·O·S) ports
- Integrated vehicle health management system
Undercarriage And Structures
- High Wide undercarriage
- 8.5″ pitch Cat grease lubricated track chain with pressed fit pin
- Catwalks
- Tie down points
- Counterweight fuel tank
- Heavy-duty track rollers and frames
- Heavy-duty travel motor guards
- Heavy-duty bottom guards
- Track guiding guards
- High drawbar final drives
- Heavy-duty recoil springs
- Heavy-duty hydraulic swivel
- Heavy-duty hydraulic swivel guard

Booms And Sticks
- 5.9 m (19’6″) Reach boom – General Forestry
- 6.55 m (21’6″) boom – Log Loader
- 2.95 m (9’6″) Reach stick
- 3.71 m (12’2″) Goose Neck stick
- 3.76 m (12’4″) Under/Under stick
- 4.05 m (13’3″) Over/Under stick
- 4.05 m (13’3″) Power Clam stick
- CB2 family bucket linkage
Cab
- Side entry with 559 mm (22″) tilting riser
- Rear entry with 1219 mm (48″) tilting riser
- Rear entry with 1829 mm (72″) tilting riser
Electrical System
- Premium General Forestry lighting package
- Premium Log Loader lighting package
Engine
- Cold start package with block heaters and ether assist
Hydraulic System
- Medium pressure circuit
Safety And Security
- Right-hand-sideview cameras
- Inspection lighting
Undercarriage And Structures
- 900 mm (36″) triple grouser Tri Link shoes
- 850 mm (33″) triple grouser shoes
- 700 mm (28″) double or single grouser shoes