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The Cat® 309 CR Variable Angle Boom (VAB) Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications. The Variable Angle Boom provides the maximum in linkage flexibility in tight applications.

Cat Specs
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Engine

Gross Power - SAE J1995
74.3 HP
Bore
3.7 in
Stroke
4.7 in
Displacement
203 in²
Note
Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.
Net Power
69.5 HP

Weights

Operating Weight
21477 lb
Note (2)
**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Note (1)
*Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.

Sound

Note
European Union Directive "2000/14/EC"

Service Refill Capacities

Hydraulic Tank
14 gal (US)
Engine Oil
3 gal (US)
Fuel Tank
39 gal (US)
Cooling System
2.6 gal (US)
Hydraulic System
29 gal (US)

Transmission Specifications

6F Gear Ratio
96%

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equiv

Hydraulic System

Type
Load Sensing Hydraulics with Variable Displacement Piston Pump