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

Description:

The John Deere 310C Backhoe Loader, produced from the mid to late 1980s, marked a significant performance upgrade over earlier 310 models. With a stronger PowerTech engine, enhanced hydraulic pressure, and standard power shuttle transmission, the 310C delivered more breakout force and digging depth—making it a highly productive and reliable machine for digging, loading, and utility work. Its rugged steel frame and easy-to-service components continue to make it a trusted choice for contractors, farmers, and municipalities.

Specifications:

Engine

• Model: John Deere 4039D

• Type: 4-cylinder, naturally aspirated diesel

• Displacement: 239 cu in (3.9 L)

• Net Power: 62 hp (46.2 kW) @ 2,200 rpm

Transmission

• Type: Power Shuttle (standard)

• Gears: 4 forward / 4 reverse

• Clutch: Hydraulic, wet-disc

• Max Travel Speed: Approx. 21.8 mph (35 km/h)

Hydraulic System

• System Type: Open center

• Pump Flow: 28.5 GPM (108 L/min)

• System Pressure: 2,500 psi (172 bar)

Backhoe Specs

• Max Digging Depth: 14 ft 3 in (4.34 m)

• Loading Height: 11 ft 2 in (3.4 m)

• Bucket Digging Force: 10,200 lbf (45.4 kN)

• Swing Arc: 180°

Loader Specs

• Lift Capacity to Full Height: ~4,250 lbs (1,928 kg)

• Breakout Force: ~7,100 lbf (31.6 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: 23 ft 2 in (7.06 m)

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

Maintenance Essentials:

Routine maintenance is essential to keep the 310C operating reliably:

• Oil and filter changes: Every 100–150 hours

• Hydraulic filter and fluid: Every 500 hours

• Grease loader/backhoe pivots: Every 8–10 hours

• Frequently Replaced Parts:

  • Loader pins and bushings

  • Hydraulic cylinder seal kits

  • Wet disc brake kits

  • Water pumps and cooling components

Common Issues & Quick Fixes:

• Hydraulic Leaks or Weak Lift: Caused by aging cylinder seals — restore function with hydraulic seal kits

• Transmission Slips or Hesitates: Common in high-hour machines — inspect and service using power shuttle rebuild kits

• Brake Fade: Wet disc brakes wear over time — fix with 310C brake repair parts

Pro Tips:

• If loader arms "float" down overnight, inspect control valve spool seals and piston rings.

• Use high-quality hydraulic oil with correct viscosity to reduce heat and wear.

• Check torque on loader frame bolts monthly to prevent frame cracking on older machines.

Serial Number Info:

• Location: On the left side of the machine frame just below the operator's seat or loader tower

• Serial Number Format: Begins with T0310CA_ _ _ _ _

• Matching serial numbers to parts is crucial — always check before ordering components.