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Cat
FM538 GF/FM538 LL
Engine Model
Cat C7.1
Cat C7.1
Net Power – ISO 9249
172 hp
128.5 kW
Engine Power – ISO 14396
174 hp
129.4 kW
Overview
The Cat® FM538 is the best choice in its size class for today’s loggers. With its high-visibility forestry cab and factory logging configurations tailored to meet your needs, the FM538 makes your work in the woods more productive and profitable.
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Exterior
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Features
Take the Guesswork Out of Managing Your Equipment
High Performance
Work in Comfort
Simple to Operate
Versatile Configurations
Easy Maintenance
Dedicated Service and Superior Support
Safely Home Every Day
Sustainability
Details
Specifications
Engine
| Spec | Value |
|---|---|
| Engine Model | Cat C7.1 Cat C7.1 |
| Net Power – ISO 9249 | 172 hp 128.5 kW |
| Engine Power – ISO 14396 | 174 hp 129.4 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 r/min 7 r/min |
| Biodiesel Capability | B20¹ B20¹ |
| Emissions | Meets U.S. EPA Tier 4 Final, EU Stage V emission standards. 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 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 1,800 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
| Spec | Value |
|---|---|
| Maximum Travel Speed | 3 mile/h 4.9 km/h |
| Maximum Drawbar Pull | 55303 lbf 246 kN |
Hydraulic System
| Spec | Value |
|---|---|
| Main System – Maximum Flow | 124 gal/min 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 Mechanism
| Spec | Value |
|---|---|
| Swing Speed | 11 r/min 11 r/min |
| Maximum Swing Torque | 72281 lb/ft 98 kN·m |
Weights
| Spec | Value |
|---|---|
| General Forestry | 66140 lb 30000 kg |
| Log Loader (U/U) | 69640 lb 31590 kg |
Service Refill Capacities
| Spec | Value |
|---|---|
| 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 |
Dimensions
| Spec | Value |
|---|---|
| Note (1) | General Forestry General Forestry |
| Shipping Height – Tilted Cab | 134 in 3400 mm |
| Handrail Height | 131 in 3270 mm |
| Length: General Forestry – Boom Stretched Out | 469 in 11920 mm |
| Length: Log Loader – Boom Stretched Out | 595 in 15120 mm |
| Tail Swing Radius | 124 in 3130 mm |
| Counterweight Clearance | 52 in 1300 mm |
| Ground Clearance | 31 in 755 mm |
| Track Length | 185 in 4670 mm |
| Track Length to Center of Rollers | 158 in 4020 mm |
| Track Gauge | 110 in 2790 mm |
| Transport Width | 138 in 3490 mm |
Working Ranges
| Spec | Value |
|---|---|
| Max Reach at Stick Nose at Ground Level – General Forestry Road Builder | 388 in 9820 mm |
| Max Reach at Grapple Mount on Heel at Ground Level – Log Loader Under/Under | 421 in 10960 mm |
Air Conditioning System
| Spec | Value |
|---|---|
| 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. |
Standard Equipment
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, and cab lights
- 115-amp alternator
- 24-volt electric starting
- Pre-start monitoring system
- 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
- 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 fuel cap and hydraulic tank
- Lockable disconnect switch
- Right-hand rail and hand hold
- Service platforms with anti-skid plate and countersunk bolts
- Signaling/warning horn
- Travel alarm
- Swing alarm
- Ground-level secondary engine shutoff switch
- Reaview camera
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
- High Wide undercarriage
- 203 mm (8″) pitch Cat grease lubricated track chain with PPR3 positive pin retention
- 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
Optional Equipment
BOOMS AND STICKS
- 5.7 m (18’7″) Reach boom – General Forestry
- 5.9 m (19’6″) Straight boom – Log Loader
- 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
- 3.8 m (12’6″) power clam stick
- B1 family bucket linkage
CAB
- Rear entry
- Side entry
- 165 mm (6.5″) fixed riser
- 1219 mm (48″) tilting riser
- CB radio mounts
- Cat Stick Steer
- Auxiliary relay
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
- Easy lock cab tilting system
- Cab riser light
- Inspection lighting
- Swing alarm
- Right-hand sideview camera
UNDERCARRIAGE AND STRUCTURES
- 900 mm (36″) triple grouser Tri Link shoes
- 800 mm (31″) triple grouser shoes
- 700 mm (28″) double grouser shoes
- 600 mm (24″) double and single grouser shoes