INTRODUCTION
Swing motor
Fixed displacement axial piston motor
Type
Type 1
Type 2
Capacity
28 cm³/rev
(
1.7 in³/rev
)
31.5 cm³/rev
(
1.9 in³/rev
)
Gear ratio
23.2
19.46
Relief pressure
21581 kPa
(
3130 psi
)
21581 kPa
(
3130 psi
)
Braking torque
115.2 N·m
(
85.0 lb ft
)
142.4 N·m
(
105.0 lb ft
)
Brake release pressure
2944 – 4902 kPa
(
427 – 711 psi
)
1179 – 1958 kPa
(
171 – 284 psi
)
Reduction gear type
2 - stage planetary
2 - stage planetary
Braking system
Automatic, spring applied hydraulic released
Travel motor
Type
Variable displacement axial piston motor
Relief pressure
21581 kPa
(
3130 psi
)
Reduction gear type
2-stage planetary
Braking system
Automatic, spring applied hydraulic released
Brake release pressure
883 kPa
(
128 psi
)
Braking torque
82.7 N·m
(
61.0 lb ft
)
Capacity (first speed / second speed)
43.7 – 22.7 cm³/rev
(
2.7 – 1.4 in³/rev
)
Gear ratio
53.706
Cylinder
Bore diameter x Rod diameter x Stroke
Ø
110 mm
(
4.3 in
) x Ø
60 mm
(
2.4 in
) x
715 mm
(
28.1 in
)
Boom cylinder
Cushion
Extend only
Bore diameter x Rod diameter x Stroke
Ø
85 mm
(
3.3 in
) x Ø
55 mm
(
2.2 in
) x
840 mm
(
33.1 in
)
Arm cylinder
Cushion
Extend and retract
Bore diameter x Rod diameter x Stroke
Ø
80 mm
(
3.1 in
) x Ø
50 mm
(
2.0 in
) x
660 mm
(
26.0 in
)
Bucket cylinder
Cushion
—
Bore diameter x Rod diameter x Stroke
Ø
95 mm
(
3.7 in
) x Ø
50 mm
(
2.0 in
) x
519 mm
(
20.4 in
)
Boom swing
cylinder
Cushion
—
Bore diameter x Rod diameter x Stroke
Ø
110 mm
(
4.3 in
) x Ø
60 mm
(
2.4 in
) x
224 mm
(
8.8 in
)
Dozer blade
Cushion
—
NOTE:
discoloration of cylinder rod can occur when the friction reduction additive of lubrication oil spreads on the rod
surface.
Discoloration does not cause any harmful effect on the cylinder performance.
Shoe
Steel
380 mm
(
15.0 in
)
Shoe width
Rubber
450 mm
(
17.7 in
)
Steel
35.3 kPa
(
5.12 psi
)
Ground pressure
Rubber
30.41 kPa
(
4.41 psi
)
Steel
1980 mm
(
78.0 in
)
Overall width
Rubber
2050 mm
(
80.7 in
)
51452136 23/07/2018
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