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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
Net Power
69.5 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.

Weights

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

Service Refill Capacities

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

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

Shipping

UPC
Cat C3.3B

Hydraulic System

Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.