Dil ID: 7
Dil Adı: french
Dil Kodu: fr4tayfun Produits de la Marque Milton-cat
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11
Engine
Engine Model Cat
®
C4.2 ACERT™
Gross Power 72 kW 97 hp
Net Power 67 kW 90 hp
SAE J1349 67 kW 90 hp
Bore 102 mm 4.02 in
Stroke 130 mm 5.12 in
Displacement 4.25 L 259.3 in
3
Net power advertise is the power available
at the flywheel when the engine is equipped
with fan, air cleaner, muffler and alternator.
No engine derating required below 2300 m
(7,500 ft) altitude.
The 312D meets U.S. EPA Tier 3 and
EU Stage IIIA Directive/97/68/EC
emissions requirements.
Weights
Operating Weight – 12 920 kg 28,480 lb
Standard Undercarriage
Operating Weight – 13 450 kg 29,650 lb
Long Undercarriage
Standard undercarriage: 500 mm (20") shoe,
3.0 m (9'10") stick, 0.52 m
3
(0.68 yd
3
) bucket.
Long undercarriage: 600 mm (24") shoe,
3.0 m (9'10") stick, 0.52 m
3
(0.68 yd
3
) bucket.
Swing Mechanism
Swing Torque 30 950 N·m 22,827.5 lb ft
Swing Speed 12.4 rpm
Drive
Maximum 114 kN 25.6 lb
Drawbar Pull
Travel Speed 5.5 km/h 3.4 mph
Hydraulic System
Main Implement 127 L/min 33.5 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 – 36 L/min 9.51 gal/min
Maximum Flow
Pilot System – 4120 kPa 598 psi
Maximum Pressure
Boom Cylinder 110 mm 4.3 in
– Bore
Boom Cylinder 1015 mm 39.9 in
– Stroke
Stick Cylinder 120 mm 4.7 in
– Bore
Stick Cylinder 1197 mm 47.1 in
– Stroke
Bucket Cylinder 100 mm 3.9 in
– Bore
Bucket Cylinder 939 mm 36.9 in
– Stroke
Service Refill Capacities
Fuel Tank 250 L 66 gal
Cooling System 17.9 L 4.73 gal
Engine Oil 19.5 L 5.1 gal
Swing Drive 3 L 0.79 gal
Final Drive (Each) 3 L 0.79 gal
Hydraulic System 162 L 42.8 gal
(Including Tank)
Hydraulic Tank 150 L 39.6 gal
Standards
Cab/FOGS SAE J1356 FEB88
ISO 10262
Sound Performance
Performance:
The operator sound exposure Leq (equivalent
sound pressure level) measured according
to the work cycle procedures specified 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.
312D/312D L Hydraulic Excavator Specifications