John Deere 30G Mini Excavator – Parts, Specs

Serial Number Location

The serial number plate is located on the frame beneath the cab, typically on the right-hand side of the machine near the front step or access panel. Always verify the serial number before ordering parts.

Key Specifications

Model Years: 2017 – Present
Engine: Yanmar 3TNV88F, 3-cylinder diesel, Tier 4 Final
Net Power: 23 hp (17.4 kW) @ 2,500 rpm
Operating Weight: 7,220 lb (cab), 6,850 lb (canopy)
Fuel Tank Capacity: 11.6 gallons
Hydraulic System Capacity: 10.6 gallons
Hydraulic Tank Capacity: 6.3 gallons
Hydraulic Pump Flow: 15.3 gpm (combined)
Hydraulic Pressure: Approx. 3,000 psi
Travel Speed: 2.8 mph (low), 4.4 mph (high)
Swing Speed: 9.1 rpm
Tail Swing: Reduced tail swing
Ground Pressure: Approx. 4.4 psi

Dimensions

Overall Length: 15 ft 2 in
Width: 5 ft 1 in
Transport Height: 8 ft 2 in
Ground Clearance: 12 in
Tail Swing Radius: 2 ft 7 in
Track Width: 12 in
Track Gauge: 4 ft 1 in

Working Range

Max Digging Depth: 9 ft 2 in
Max Reach at Ground: 16 ft 1 in
Max Cutting Height: 15 ft 2 in
Max Dump Height: 10 ft 7 in

Performance & Design Highlights

• Compact reduced tail swing design for tight-space operation

• Auto-idle and auto-shutdown to reduce fuel consumption

• Standard mechanical quick-coupler compatibility

• Heavy-duty X-frame undercarriage with integrated blade

• Ergonomic operator station with adjustable seat and easy-to-reach controls

• Durable rubber tracks and side-by-side cooling layout

• Two-speed travel with automatic shift for better efficiency

Routine Maintenance

• Engine Oil & Filter: Replace every 250 hours

• Fuel Filter: Every 500 hours

• Hydraulic Oil: Replace every 3,000 hours

• Hydraulic Filter: Replace every 1,000 hours

• Cooling System: Clean radiator and screens every 250 hours

• Daily Checks: Grease all pivot points, inspect tracks, check fluid levels, battery, and hoses

Common Issues & Fixes

• Hydraulic Line Wear: Watch for leaks at fittings and replace seals as needed

• Track Slack: Adjust with grease fitting; keep tracks clean to reduce wear

• Cooling Clogs: Dust buildup can restrict airflow—clean radiator fins daily

• Electrical Faults: Inspect fuses and connectors for corrosion or vibration-related damage

• Attachment Jamming: Quick-coupler components should be cleaned and lubed regularly