1-22
GRAPPLE
GRAPPLE
10)
10)
REMOTE CONTROL VALVE
REMOTE CONTROL VALVE
CYLINDER
CYLINDER
Item
Type
Specification
Pressure reducing type
6.5 kgf/cm
2
(92 psi)
26 kgf/cm
2
(370 psi)
61 mm (2.4 in)
123 mm (4.84 in)
Operating pressure
Minimum
Maximum
Lever
Pedal
Single operation stroke
7)
7)
8)
8)
※
Discoloration of cylinder rod can occur when the friction reduction additive of lubrication oil spreads on
Discoloration of cylinder rod can occur when the friction reduction additive of lubrication oil spreads on
the rod surface.
the rod surface.
※
Discoloration does not cause any harmful effect on the cylinder performance.
Discoloration does not cause any harmful effect on the cylinder performance.
SHOE
SHOE
9)
9)
Item
Specification
Boom cylinder
Bore dia
×
Rod dia
×
Stroke
Ø
140
×Ø
100
×
1465 mm
Cushion
Extend only
Arm cylinder
Bore dia
×
Rod dia
×
Stroke
Ø
150
×Ø
110
×
1765 mm
Cushion
Extend and retract
Item
Width
Ground pressure
Link quantity
Overall width
R290LC-9MH
Tilt cab
Standard
800 mm (32")
0.47 kgf/cm
2
(6.68 psi)
48
3400 mm (11' 1")
Option
900 mm (36") 0.42
kgf/cm
2
(5.97 psi)
48
3500 mm (11' 5")
R290LC-9MH
Elevating cab
Standard
800 mm (32")
0.48 kgf/cm
2
(6.83 psi)
48
3400 mm (11' 1")
Option
900 mm (36") 0.44
kgf/cm
2
(6.26 psi)
48
3500 mm (11' 5")
Item
Lifting capacity
Width
Max opening width
Overall length
R290LC-9MH
Standard
0.90 m
3
(1.18 yd
3
)
2000 mm ( 6' 7")
2540 mm ( 8' 4")
Option
1.90 m
3
(2.49 yd
3
)
3500 mm (11' 6")
3595 mm (11' 10")
