11
311D LRR Hydraulic Excavator Specifications
Engine
Engine Model Cat
®
C4.2 ACERT
®
Gross Power 64 kW 86 hp
Net Power 60 kW 80 hp
ISO 9249 60 kW 80 hp
SAE J1349 60 kW 80 hp
Bore 102 mm 4 in
Stroke 130 mm 5.1 in
Displacement 4.25 L 259 in
3
• Net power advertised is the power available
at the fl ywheel when the engine is equipped
with fan, air cleaner, muffl er and alternator.
• No engine power derating required below
2300 m (7,500 ft).
• The 311D meets U.S. EPA Tier 3 emissions
requirements.
Weights
Operating Weight 12 480 kg 27,514 lb
Operating Weight – 12 480 kg 27,514 lb
Long Undercarriage
Swing Mechanism
Swing Torque 30 900 N·m 22,825 lb ft
Swing Speed 11.4 rpm
Drive
Maximum 114 kN 25,600 lb
Drawbar Pull
Travel Speed 5.1 km/h 3.1 mph
Hydraulic System
Main Implement 117 L/min 30.9 gal/min
System – Maximum
Flow (2x)
Maximum Pressure 30 500 kPa 4,424 psi
– Implements
Maximum Pressure 35 000 kPa 5,076 psi
– Travel
Maximum Pressure 23 000 kPa 3,336 psi
– Swing
Pilot System – 23 L/min 6.08 gal/min
Maximum Flow
Pilot System – 4120 kPa 598 psi
Maximum Pressure
Boom Cylinder 100 mm 3.9 in
– Bore
Boom Cylinder 1002 mm 39.4 in
– Stroke
Stick Cylinder 110 mm 4.3 in
– Bore
Stick Cylinder 1194 mm 47 in
– Stroke
Bucket Cylinder 100 mm 3.9 in
– Bore
Bucket Cylinder 939 mm 37 in
– Stroke
Service Refill Capacities
Fuel Tank 210 L 55 gal
Cooling System 18 L 4.8 gal
Engine Oil 19 L 5 gal
Swing Drive 3 L 1 gal
Final Drive (Each) 3 L 1 gal
Hydraulic System 145 L 38 gal
(Including Tank)
Hydraulic Tank 78 L 21 gal
Standards
Cab/FOGS SAE J1356 FEB88/
ISO 10262
Sound Performance
Performance ANSI/SAE J1166
OCT 98
• The operator sound exposure Leq (equivalent
sound pressure level) measured according
to the work cycle procedures specifi ed in
ANSI/SAE J1166 OCT 98 is 73 dB(A), at
standard ambient, for the cab offered by
Caterpillar, when properly installed and
maintained and tested with the doors
and windows closed.
• Hearing protection may be needed when
operating with an open operator station and
cab (when not properly maintained or doors/
windows open) for extended periods or in
noisy environment.
Dimensions
Transport Width 2490 mm 98.03 in
Shipping Height 2830 mm 9.28 ft
Length to Center 2780 mm 9.12 ft
of Rollers
