The Cat® FM538 forestry machine is built for log loading , Processing, and forestry roadbuilding. Operators get smooth control and visibility, while Cat forestry grapples and mulchers maximize efficiency.
| Engine Model | Cat C7.1 |
| Net Power – ISO 9249 | 172 hp |
| Engine Power – ISO 14396 | 174 hp |
| Engine Model | Cat C7.1 |
| Net Power – ISO 9249 | 172 hp |
| Engine Power – ISO 14396 | 174 hp |
| Net Power – ISO 9249 (DIN) | 175 hp (metric) |
| Engine Power – ISO 14396 (DIN) | 176 hp (metric) |
| Bore | 4 in |
| Stroke | 5 in |
| Displacement | 428 in³ |
| 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) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 100% |
| Maximum Travel Speed | 3 mile/h |
| Maximum Drawbar Pull | 57551 lbf |
| Main System – Maximum Flow | 124 gpm |
| Maximum Pressure – Equipment | 5076 psi |
| Maximum Pressure – Equipment – Lift Mode | 5511 psi |
| Maximum Pressure – Travel | 5076 psi |
| Maximum Pressure – Swing | 4351 psi |
| Swing Speed | 11 r/min |
| Maximum Swing Torque | 72281 lbf·ft |
| General Forestry | 66140 lb |
| Note (1) | High Wide undercarriage, 165 mm (6.5″) riser, Reach boom, R3.7 m (12’2″) Drop Nose stick, 700 mm (28″) double grouser shoes, no processor head. |
| Log Loader (U/U) | 69640 lb |
| 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. |
| Fuel Tank | 262 gal (US) |
| Cooling System | 5 gal (US) |
| Engine Oil | 7 gal (US) |
| Swing Drive | 3 gal (US) |
| Final Drive – Each | 1 gal (US) |
| Hydraulic System – Including Tank | 69 gal (US) |
| Hydraulic Tank | 38 gal (US) |
| DEF Tank | 11 gal (US) |
| Note (1) | General Forestry with 5.7 m (18’7″) Reach boom and 2.9 m (9’7″) Thumb ready stick |
| Shipping Height – Tilted Cab | 11.2 ft |
| Handrail Height | 10.8 ft |
| Length: General Forestry – Boom Stretched Out | 42.2 ft |
| Length: Log Loader – Boom Stretched Out | 44.9 ft |
| Tail Swing Radius | 10.3 ft |
| Counterweight Clearance | 4.2 ft |
| Ground Clearance | 2.5 ft |
| Track Length | 15.3 ft |
| Track Length to Center of Rollers | 158 ft |
| Track Gauge | 9.2 ft |
| Transport Width | 11.4 ft |
| Max Reach at Stick Nose at Ground Level – General Forestry Road Builder | 28.8 ft |
| Max Reach at Grapple Mount on Heel at Ground Level – Log Loader Under/Under | 35.9 ft |
| 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 metr |
| Standard and optional equipment may vary. Consult your Cat dealer for details. |
| ROPS Forestry cab with polycarbonate windows |
| Operator Protective Guards (OPG) |
| 32 mm (1.25") polycarbonate front window |
| Four-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 |
| VisionLink™ |
| Remote Flash |
| Remote Troubleshoot |
| Centralized electrical disconnect switch |
| Maintenance-free 1000 CCA batteries (x4) |
| Centralized electrical disconnect switch |
| LED chassis light |
| 115-amp alternator |
| 24-volt electric starting |
| Pre-start monitoring system |
| Tool control software |
| Secondary engine shut off switch |
| 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 |
| 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 |
| 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 |
| Ground-level secondary engine shutoff switch |
| Reaview camera |
| 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 |
| 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 |
| Standard and optional equipment may vary. Consult your Cat dealer for details. |
| 5.7 m (18'7") Reach boom |
| 5.9 m (19'6") Log Loader 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 |
| 3.8 m (12'6") Power Clam stick |
| 4.2 m (13'9") Under/Under Extended Reach stick |
| B1 family bucket linkage |
| Side entry with 165 mm (6.5") fixed riser |
| Side entry with 1219 mm (48") tilting riser |
| Rear entry with 1219 mm (48") tilting riser |
| CB radio mounts |
| Cat Stick Steer |
| Auxiliary relay |
| Premium lighting – General Forestry – 6 additional LED lights |
| Premium lighting – Log Loader – 10 additional LED lights |
| Cold start package with block heaters and ether assist |
| Medium pressure circuit |
| Easy lock cab tilting system |
| Cab riser light |
| Inspection lighting |
| Swing alarm |
| Right-hand sideview camera |
| 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 |
| 600 mm (24") double and single grouser shoes |
