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John Deere 3156G Forest Machine Specs

Cooling

John Deere 3156G Forest Machine Cooling specifications
Fan Drive Cool-on-demand hydraulic-driven, suction-type fan with remote-mounted drive and standard reversing fan - Starting 2026

Final Tier 4/EU Stage V Electrical

John Deere 3156G Forest Machine Final Tier 4/EU Stage V Electrical specifications
Alternator Rating 150.0 amp - Starting 2026
Standard Access Lights 1 LED (right rear cab) - Starting 2026
Standard Service Lights With Rear-Entry Cab 6 LEDs (compartments and riser) - Starting 2026
Standard Service Lights With Side-Entry Cab 5 LEDs (compartments) - Starting 2026
Standard Work Lights 14 LEDs - Starting 2026
System Voltage 24.0 v - Starting 2026

Final Tier 4/EU Stage V Engine

John Deere 3156G Forest Machine Final Tier 4/EU Stage V Engine specifications
Aspiration Series turbocharged, air-to-air charge-air cooler - Starting 2026
Cylinders 6 - Starting 2026
Engine Displacement 549.00 cu in (8,996.52 cu cm) - Starting 2026
Engine Speed Used for Net Rated Power 1900.0 rpm - Starting 2026
Manufacturer John Deere PowerTech™ PSS 9.0 L - Starting 2026
Net Rated Power at Engine Speed 249.00 hp (185.68 kw) - Starting 2026
Non-Road Emission Standards EPA Final Tier 4 (FT4)/EU Stage IV - Starting 2026
Off-Level Capacity 70.0 % - Starting 2026
Oil Filter, Remote Mounted Full-flow spin-on filter - Starting 2026

Ground Pressure, Live-Heel Log Loader

John Deere 3156G Forest Machine Ground Pressure, Live-Heel Log Loader specifications
Ground Pressure With 28-in. Double-Grouser Shoes and Option One Gauge and Standard-Duty Undercarriage 10.5 psi - Starting 2026
Standard Undercarriage Gauge 9.58 ft (2.92 m) - Starting 2026

Ground Pressure, Processor

John Deere 3156G Forest Machine Ground Pressure, Processor specifications
Ground Pressure With 28-in. Double-Grouser Shoes and Option One Gauge and Standard-Duty Undercarriage 10.9 psi - Starting 2026
Option One - Standard-Duty Undercarriage Gauge 9.58 ft (2.92 m) - Starting 2026

Ground Pressure, VIH Log Loader

John Deere 3156G Forest Machine Ground Pressure, VIH Log Loader specifications
Ground Pressure With 28-in. Double-Grouser Shoes and Option One Gauge and Standard-Duty Undercarriage 10.5 psi - Starting 2026
Standard Undercarriage Gauge 9.58 ft (2.92 m) - Starting 2026

Hydraulics

John Deere 3156G Forest Machine Hydraulics specifications
Controls Pilot levers; short-stroke, low-effort hydraulic pilot with shutoff lever - Starting 2026
Implement Circuits System Operating Pressure 4975.0 psi - Starting 2026
Main Pumps Maximum Rated Flow, Per 2 Pumps 65.50 gpm (247.92 lpm) - Starting 2026
Main Pumps Type 2 variable-displacement pumps - Starting 2026
Power Boost System Operating Pressure 5511.0 psi - Starting 2026
Type Open center, pilot operated - Starting 2026

Operating Dimensions, Live-Heel Log Loader Arm

John Deere 3156G Forest Machine Operating Dimensions, Live-Heel Log Loader Arm specifications
Conditions for Measuring Operating Dimensions With standard equipment, 700-mm (28 in.) shoes, 6558-kg (14,458 lb.) heavy counterweight, full fuel tank, and 79-kg (175 lb.) operator - Starting 2026
Maximum Log-Level Height (Verify Attachment Dependency) 30.33 ft (9.25 m) - Starting 2026
Maximum Reach 41.17 ft (12.55 m) - Starting 2026
Maximum Reach at Ground Level 40.50 ft (12.34 m) - Starting 2026
Maximum Working Depth 14.58 ft (4.44 m) - Starting 2026
Maximum Working Height 47.67 ft (14.53 m) - Starting 2026
Minimum Swing Radius 15.00 ft (4.57 m) - Starting 2026
Tail Swing Radius 12.17 ft (3.71 m) - Starting 2026

Operating Dimensions, Processor Arm

John Deere 3156G Forest Machine Operating Dimensions, Processor Arm specifications
Conditions for Measuring Operating Dimensions With standard equipment, 700-mm (28 in.) shoes, 6558-kg (14,458 lb.) heavy counterweight, full fuel tank, and 79-kg (175 lb.) operator - Starting 2026
Maximum Log-Level Height (Verify Attachment Dependency) 33.00 ft (10.06 m) - Starting 2026
Maximum Reach 36.33 ft (11.07 m) - Starting 2026
Maximum Reach at Ground Level 35.50 ft (10.82 m) - Starting 2026
Maximum Working Depth 10.00 ft (3.05 m) - Starting 2026
Maximum Working Height 42.67 ft (13.00 m) - Starting 2026
Minimum Swing Radius 15.00 ft (4.57 m) - Starting 2026
Tail Swing Radius 12.17 ft (3.71 m) - Starting 2026

Operating Dimensions, VIH Log Loader Arm

John Deere 3156G Forest Machine Operating Dimensions, VIH Log Loader Arm specifications
Conditions for Measuring Operating Dimensions With standard equipment, 700-mm (28 in.) shoes, 6558-kg (14,458 lb.) heavy counterweight, full fuel tank, and 79-kg (175 lb.) operator - Starting 2026
Maximum Log-Level Height (Verify Attachment Dependency) 29.42 ft (8.97 m) - Starting 2026
Maximum Reach 36.50 ft (11.13 m) - Starting 2026
Maximum Reach at Ground Level 35.75 ft (10.90 m) - Starting 2026
Maximum Working Depth 9.92 ft (3.02 m) - Starting 2026
Maximum Working Height 43.08 ft (13.13 m) - Starting 2026
Minimum Swing Radius 16.50 ft (5.03 m) - Starting 2026
Tail Swing Radius 12.17 ft (3.71 m) - Starting 2026

Operating Weights, Live-Heel Log Loader Arm

John Deere 3156G Forest Machine Operating Weights, Live-Heel Log Loader Arm specifications
Conditions for Measuring Operating Weights With full fuel tank, 79-kg (175 lb.) operator, rear-entry forestry cab, 6558-kg (14,458 lb.) heavy counterweight, 700-mm (28 in.) double-grouser shoes, and 2.92-m (9 ft. 7 in.) undercarriage; no attachment included - Starting 2026
Rear-Entry Cab - Cab Forward, Optional Component, Add Weight 150.00 lbs (68.04 kg) - Starting 2026
SAE Operating Weight, EPA FT4/EU Stage IV 95,745.00 lbs (43,429.26 kg) - Starting 2026
SAE Operating Weight, EPA Tier 3/EU Stage IIIA / EPA Tier 2/EU Stage II 95,245.00 lbs (43,202.46 kg) - Starting 2026
Side-Entry Cab, Optional Component, Add Weight -1,480.00 lbs (-671.32 kg) - Starting 2026

Operating Weights, Processor

John Deere 3156G Forest Machine Operating Weights, Processor specifications
Conditions for Measuring Operating Weights With full fuel tank, 79-kg (175 lb.) operator, rear-entry forestry cab, 6558-kg (14,458 lb.) heavy counterweight, 700-mm (28 in.) double-grouser shoes, and 2.92-m (9 ft. 7 in.) undercarriage; no attachment included - Starting 2026
Rear-Entry Cab - Cab Forward, Optional Component, Add Weight 150.00 lbs (68.04 kg) - Starting 2026
SAE Operating Weight, EPA FT4/EU Stage IV 93,870.00 lbs (42,578.77 kg) - Starting 2026
SAE Operating Weight, EPA Tier 3/EU Stage IIIA / EPA Tier 2/EU Stage II 93,370.00 lbs (42,351.97 kg) - Starting 2026
Side-Entry Cab, Optional Component, Add Weight -1,480.00 lbs (-671.32 kg) - Starting 2026

Operating Weights, VIH Log Loader

John Deere 3156G Forest Machine Operating Weights, VIH Log Loader specifications
Conditions for Measuring Operating Weights With full fuel tank, 79-kg (175 lb.) operator, rear-entry forestry cab, 6558-kg (14,458 lb.) heavy counterweight, 700-mm (28 in.) double-grouser shoes, and 2.92-m (9 ft. 7 in.) undercarriage; no attachment included - Starting 2026
Rear-Entry Cab - Cab Forward, Optional Component, Add Weight 150.00 lbs (68.04 kg) - Starting 2026
SAE Operating Weight, EPA FT4/EU Stage IV 93,371.00 lbs (42,352.43 kg) - Starting 2026
SAE Operating Weight, EPA Tier 3/EU Stage IIIA / EPA Tier 2/EU Stage II 92,871.00 lbs (42,125.63 kg) - Starting 2026
Side-Entry Cab, Optional Component, Add Weight -1,480.00 lbs (-671.32 kg) - Starting 2026

Operator Station

John Deere 3156G Forest Machine Operator Station specifications
Operator Height From Ground (Eye Level) in Rear-Entry Log Loader Cab 14.67 ft (4.47 m) - Starting 2026
Operator Height From Ground (Eye Level) in Side-Entry Forestry Cab 10.25 ft (3.12 m) - Starting 2026

Powertrain

John Deere 3156G Forest Machine Powertrain specifications
Drawbar Pull 66910.0 lbf - Starting 2026
Maximum Travel Speed High 2.60 mph (4.18 kph) - Starting 2026
Maximum Travel Speed Low 1.70 mph (2.74 kph) - Starting 2026
Type 2-speed propel with automatic shift - Starting 2026

Serviceability

John Deere 3156G Forest Machine Serviceability specifications
Cooling System Capacity 10.50 gal (39.74 l) - Starting 2026
Diesel-Exhaust Fluid (DEF) Tank (FT4) Capacity 11.50 gal (43.53 l) - Starting 2026
Engine Crankcase (Including Filter) Capacity 28.5 qt - Starting 2026
Fuel Tank Capacity 285.00 gal (1,078.73 l) - Starting 2026
Hydraulic Tank Oil Capacity 52.00 gal (196.82 l) - Starting 2026

Swing Mechanism

John Deere 3156G Forest Machine Swing Mechanism specifications
Swing Speed 8.7 rpm - Starting 2026
Swing Torque 88,507.00 lbs ft (119,997.79 nm) - Starting 2026

Tier 3/EU Stage IIIA // Tier 2/EU Stage II Electrical

John Deere 3156G Forest Machine Tier 3/EU Stage IIIA // Tier 2/EU Stage II Electrical specifications
Alternator Rating 130.0 amp - Starting 2026
Standard Access Lights 1 LED (right rear cab) - Starting 2026
Standard Service Lights With Rear-Entry Cab 6 LEDs (compartments and riser) - Starting 2026
Standard Service Lights With Side-Entry Cab 5 LEDs (compartments) - Starting 2026
Standard Work Lights 14 LEDs - Starting 2026
System Voltage 24.0 v - Starting 2026

Tier 3/EU Stage IIIA // Tier 2/EU Stage II Engine

John Deere 3156G Forest Machine Tier 3/EU Stage IIIA // Tier 2/EU Stage II Engine specifications
Aspiration Turbocharged, air-to-air charge-air cooler - Starting 2026
Cylinders 6 - Starting 2026
Engine Displacement 549.00 cu in (8,996.52 cu cm) - Starting 2026
Engine Speed Used for Net Rated Power 1900.0 rpm - Starting 2026
Manufacturer John Deere PowerTech™ Plus 9.0 L - Starting 2026
Net Rated Power at Engine Speed 249.00 hp (185.68 kw) - Starting 2026
Non-Road Emission Standards EPA Tier 3/EU Stage IIIA - Starting 2026
Off-Level Capacity 70.0 % - Starting 2026
Oil Filter, Remote Mounted Full-flow spin-on filter - Starting 2026

Undercarriage, Standard

John Deere 3156G Forest Machine Undercarriage, Standard specifications
Carrier Rollers Per Side 2 - Starting 2026
Pitch With Standard-Duty Undercarriage 8.50 in (21.59 cm) - Starting 2026
Shoes, Double Grousers, Per Side 48 - Starting 2026
Track Rollers Per Side 9 - Starting 2026
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