John Deere 310B Backhoe Loader – Parts, Specs & Serial Numbers

Description:

The John Deere 310B Backhoe Loader, introduced in the early 1980s, continued the legacy of the 310 line with improved hydraulics, a more refined transmission, and increased digging force. Known for its rugged steel frame, reliable diesel powerplant, and versatile loader-backhoe configuration, the 310B remains a staple on construction sites, farms, and utility fleets. With its simple design and wide availability of aftermarket parts, it’s a favorite among mechanics and equipment owners alike.

Specifications:

Engine

• Model: John Deere 4219D

• Type: 4-cylinder, naturally aspirated diesel

• Displacement: 219 cu in (3.6 L)

• Net Power: 50 hp (37.3 kW) @ 2,500 rpm

Transmission

• Type: Collar shift manual transmission

• Gears: 8 forward / 4 reverse

• Clutch: Dry disc

• Top Speed: Approx. 20 mph (32 km/h)

Hydraulic System

• System Type: Open center

• Pump Flow: 28 GPM (106 L/min)

• System Pressure: 2,250 psi (155 bar)

Backhoe Specs

• Digging Depth: 14 ft 3 in (4.34 m)

• Loading Height: 11 ft (3.35 m)

• Bucket Digging Force: 9,240 lbf (41.1 kN)

• Swing Arc: 180°

Loader Specs

• Lift Capacity to Full Height: ~4,000 lbs (1,814 kg)

• Breakout Force: ~6,800 lbf (30.2 kN)

• Bucket Widths: 72–84 in (1.83–2.13 m)

Dimensions & Weight

• Operating Weight: ~13,500 lbs (6,123 kg)

• Wheelbase: 81 in (2.06 m)

• Overall Length: 22 ft 10 in (6.96 m)

• Height to Top of ROPS: 8 ft 10 in (2.7 m)

Maintenance Essentials:

Keep your 310B running efficiently with routine maintenance:

• Every 100–150 hours: Change engine oil and replace filters

• Every 500 hours: Replace hydraulic filters and inspect pump lines

• Frequent Wear Points:

  • Loader pins and bushings

  • Hydraulic cylinder seal kits

  • Brake shoes and linkage

  • Cooling components like fan belts and thermostats

Common Issues & Quick Fixes:

• Loader Drift or Weak Hydraulics: Usually caused by worn piston seals — fix it with hydraulic seal kits

• Brake Pedal Goes Soft: Often due to linkage corrosion or worn drums — restore with complete brake repair kits

• Stiff Shifting or Clutch Slippage: Check clutch linkage and replace with aftermarket clutch assemblies if needed

Pro Tips:

• Grease all loader and backhoe pivot points every 8 hours for extended bushing life.

• Check hydraulic hoses regularly — cracks can cause catastrophic leaks under pressure.

• Use the differential lock during digging to maintain traction without over-revving the engine.

Serial Number Info:

• Location: Left side of the machine, just below the operator’s platform on the frame or near the loader tower.

• Format: Begins with T0310BH_ _ _ _ _

• Always verify your serial number to ensure part compatibility when ordering replacements.