John Deere 1070D Harvester - Parts, Specs & Maintenance Guide

The John Deere 1070D Harvester is a compact, wheeled forestry machine designed for thinning and selective logging operations. Known for its agility, fuel efficiency, and reliable boom control, the 1070D is well-suited for challenging terrain and precision timber harvesting. Its versatile design and efficient hydraulics make it a preferred choice among operators in dense or uneven woodlots.

Engine & Powertrain:

• Engine: John Deere 6068HTJ Turbocharged Diesel (Tier 2)

• Displacement: 6.8L (414 cu in)

• Rated Horsepower: 155 HP (115 kW)

• Fuel Capacity: 66 gallons (250 L)

• Transmission: Hydrostatic, 2-speed

• Drive Configuration: 6WD or 8WD, depending on setup

Hydraulic System:

• Hydraulic Flow: ~55–65 GPM (210–245 L/min)

• System Pressure: Up to 3,770 psi

• Pump Type: Load-sensing, variable-displacement axial piston

• Boom Reach: 10 m (32.8 ft) with CH6 boom

• Harvester Head Compatibility: H754, H413, Waratah 758 (varies by market)

Dimensions & Weight:

• Operating Weight: ~31,000–34,000 lbs (14,000–15,500 kg)

• Length: ~310 inches

• Width: ~102 inches (varies with tires)

• Height: ~143 inches

• Ground Clearance: 25 inches

• Tire Size: 600/55-26.5 (standard), tracks or bogies optional

Performance Highlights:

• CH-series boom provides smooth and controlled harvesting

• Excellent visibility from climate-controlled, ROPS/FOPS-certified cab

• Timbermatic™ control system for precision logging and data tracking

• Compact design ideal for thinning and maneuvering in tight stands

• Optional 8-wheel setup improves traction and reduces ground pressure

Maintenance Essentials:

• Regular service of hydraulic pumps, boom cylinders, and swing bearings

• Replace harvester head pins, feed roller motors, and sensors—check John Deere 1070D hydraulic parts

• Clean cooling system and replace fuel filters regularly to prevent engine derate

• Inspect articulation joint and steering cylinders for wear

Common Issues & Quick Fixes:

• Hydraulic Drifts or Delays: Often due to worn boom seals or pressure loss—use cylinder repair kits

• Harvester Head Misreadings: Replace worn sensors or recalibrate Timbermatic™ system

• Wheel Motor Overheating: Check hydraulic filters and flush contaminated oil

Pro Tip: The serial number is located on the right side of the machine frame behind the front wheels. Prefix usually starts with “1WJ1070D.” Always verify full serial before ordering key components.

Explore our wide range of John Deere 1070D Harvester parts and keep your machine field-ready year-round.