Dynamic Acera 03/05 Rev. 05
Page 3-16
MACHINE FAMILIARIZATION
SK480 - PERFORMANCE SPECIFICATIONS
The following performance specifications are based on the stan-
dard machine with standard attachment.
1. Travel Speed, Swing Speed & Gradeability
DESCRIPTION
SPECIFICATION
TRAVEL SPEED
5.6 km per hr (3.5 mph) in
mode.
3.5 km per hr (2.2 mph) in
mode.
SWING SPEED
9 RPM IN M-Mode / “HI” Idle.
GRADEABILITY
70% (35°) {Limited by engine lubrication}
DRAWBAR FORCE
26,218 Kgf (57,800 lbs)
2. Engine
Engine Maker
Mitsubishi
Model
6D24-TLA2B
Type
4-Cycle, Water Cooled, Direct
Injection with Turb & Inner cooler
Number of Cylinders– Bore X Stroke
6–130 mm X 150 mm (5.12" X 5.91”)
Displacement
11.950 Liter (729 cu in.)
Compression Ratio
17.5 : 1
Output Rating
250kW (335 HP) / 2,130 rpm
Maximum Torque
1,275 N•m (940 lb-ft)/ 1,600 rpm
Ignition Order
1–5–3–6–2–4 Clockwise Rotation
Injection Timing
2° Before Top Dead Point
Intake Valve Clearance Cold
0.4 mm (0.0157")
Exhaust Valve Clearance Cold
0.6 mm (0.0236")
Electrical System
D.C. 24 V
Starting Motor
24 V–5.0 KW
Alternator
24 V–35 A
Batteries
2– 12 V- (136 Ah)
Engine Dry Weight*
580 kg (1,280 lbs)
Thermostat
Begin to open at 76.5°C (170°F).
Full open at 90°C (194°F).
Cooling Fan Drive Method
Ø620 (Ø24.2") Suction Type Belt
Drive Pulley Ratio : 0.90
Air Cleaner
Dry Type with Safety Elements
*Less flywheel and electrics.
3. Hydraulic Components
COMPONENT
TYPE
HYDRAULIC PUMPS
Tandem, Variable Displacement,
Axial Piston with Pilot Gear Pump.
SWING MOTOR
Axial Piston
TRAVEL MOTOR
Axial Piston
CONTROL VALVES
6 Spool Multiple Control
CYLINDERS (ALL)
Double Acting
RETURN FILTER
Safety Valve containing Filter Type
OIL COOLER
Air Cooled
4. Operating Pressures
PILOT SYSTEM
49.9 / (710) / [4.9 MPa]
IMPLEMENT
320 / (4554) / [31.4 MPa]
SWING
260 / (3698) / [25.5 MPa]
TRAVEL
349 / (4974) / [34.3 MPa]
POWER BOOST/HEAVY LIFT
349 / (4974) / [34.3 MPa]
1A. MACHINE & COMPONENT WEIGHTS
The following weight specifications are based on the
standard machine with standard attachment.
COMPONENT
SK480LC-VI
COMPLETE MACHINE (STANDARD)
49,100 (108,000)
UPPER FRAME ASSEMBLY
20,800 (45,760)
COUNTERWEIGHT
10,027 (22,059)
CAB
260 (570)
BOOM CYLINDER*
422 (928) X 2
M MINOR ITEMS
1,100 (2,420)
RADIATOR & OIL COOLER
186 (410)
PUMP ASSEMBLY
187 (420)
CONTROL VALVE
380 (840)
FUEL TANK*
230 (510)
HYDRAULIC TANK*
360 (790)
SWING MOTOR & REDUCTION UNIT
722 (1,590)
LOWER FRAME ASSEMBLY
19,000 (41,800)
SLEWING RING
700 (1,540)
TRAVEL MOTOR + RED. UNIT
650 (1,430) X2
IDLER ASSEMBLY
270 (600) X2
LOWER ROLLER ASSEMBLY
98 (220) X18
UPPER ROLLER ASSEMBLY
30 (66) X4
TRACK TENSION ASSEMBLY
325 (720) X2
SP BOLTS
100 (220) X2
SWIVEL JOINT
58 (130)
TRACK GUIDE
50 (110) X 4
TRACK CHAINS W/900mm (35.4”) SHOES
2,730 (6,006) X2
TRACK LINK
1,160 (2,560) X2
ATTACHMENT (STANDARD)
8,100 (17,860)
BUCKET ASSEMBLY [1.80M
3
(2.35 CU YD)]
1,440 (3,170)
ARM ASSEMBLY [3.45m (11’- 4”)
2,380 (5,250)
ARM [3.45 11’ - 4”]
1,450 (3,200)
BUCKET CYLINDER*
360 (790)
IDLER LINK
56 (120) X2
BUCKET LINK
150 (330)
PIN (2 PCS for mtg bucket cyl, & bucket
155 (340)
BOOM ASSEMBLY
4,240 (9,350)
BOOM
3,330 (7,280)
ARM CYLINDER*
590 (1,300)
PINS (mounting for arm)
124 (270)
FLUIDS
1,200 (2,650)
HYD OIL
570 (1,260)
ENG OIL
42 (90)
FUEL
540 (1,190)
WATER
48 (105)
WARNING
2X210 L/min (55.5 Gal/min)
Kgf/cm
2
/ (psi) / [ MPa]
Unit: Kg (lb)
* DRY WEIGHT
USE ONLY LIFTING DEVICES AND EQUIPMENT
WITH RATED CAPACITIES SUFFICIENT TO LIFT
THE SPECIFIC COMPONENT(S) BEING REMOVED
OR INSTALLED.