Maeda MC285C-2, Service Manual, Page: 3 / 207

SPECIFICATIONS
System and Item MC285C-2
Machine weight 1960kg
Overall length
u
width
u
height
2750mm x 750mm x 1470mm
Distance between center
idler and sprocket
975mm
Track gauge 550mm
Weight and
dimensions
Width of crawler 200mm
Crane capacity 2.82t x 1.4m
Maximum working radius 8.2m Performanc
e
Maximum lifting height
above ground
8.7m
Type
Hydraulic motor driven with brake, differential planetary gear
type, with counter balance valve(within drum type)
Hook hoist speed 9.3 m/min (4 layers, 4 parts of line)
Winch
system
Hoist wire rope IWRC 6 x Fi (29) 7 mm x 48 m
Type
Sequential hydraulic cylinders ˜ 2 + wire rope telescoping
systems
˜
2
Type of boom
Fully automatic 5-section pentagonal telescopic
(3 to 5 stage: simultaneous telescoping)
Boom length 2.535m – 4.075m – 5.575m – 7.075m – 8.575m
Telescopin
g system
Boom telescoping stroke/
time
6.04 m/22 sec
Type Hydraulic double acting cylinder,direct acting type ˜ 2 Boom hoist
system
Derricking angle/ time 0 to 80° /14 sec
Type
Swing bearing support, hydraulic motor drive, worm and spur
gears, worm self-lock
Slewing
system
Slewing angle/ speed 360° (continuous)/60 sec (1.0 RPM)
Type
1st stage with flexible stay damper, 2nd stage manual pullout,
hydraulic cylinder direct acting type
Outrigger
system
Max extended width (Front) 3810mm x (Right/left) 4580mm x (Rear) 4530mm
Type Hydraulic motor driven, Step-less speed changer
Travel speed Forward/backward: 0 – 2.2 km/h
Grade ability 20°
Travel
system
Ground pressure 49.3 kPa(0.497 䌫䌧䌦 / 䌣䋛 )
Hydraulic pump variable piston pump
Rated pressure 20.6MPa (210kgf/cm
2
)
Hydraulic
system
Hydraulic oil tank capacity 20L
Model Yanmar 2TNV70-NMBA
Type In-line 2-cylinder, water cooled, 4-cycle diesel
Displacement 0.569L (569cc)
Rated output (continuous) 7.4kW/2500min
-1
(10.1PS/2500rpm)
Engine
Fuel tank capacity Diesel 12L
Battery Model 55B24R (DC12V x 1 piece)
Safety
device
Over hoist detector, over un-winding detector, angle indicator, hydraulic safety valve, wire rope
latch, level, machine body inclination alarm, EMO Switch, crane outrigger interlock device,
moment limiter, outrigger setting light, working status light
1