INTRODUCTION
Swing motor
Type
Fixed displacement axial piston motor
Capacity
22 cm³/rev
(
1.3 in³/rev
)
Relief pressure
19616 kPa
(
2845 psi
)
Braking system
Automatic, spring applied hydraulic released
Braking torque
90.2 N·m
(
66.5 lb ft
)
Brake release pressure
1958 – 6378 kPa
(
284 – 925 psi
)
Reduction gear type
2 - stage planetary
Travel motor
Type
Variable displacement axial piston motor
Relief pressure
22553 kPa
(
3271 psi
)
Reduction gear type
2-stage planetary
Braking system
Automatic, spring applied hydraulic released
Brake release pressure
1200 kPa
(
174 psi
)
Braking torque
38 N·m
(
28 lb ft
)
Remote control valve
Type
Pressure reducing type
Minimum
490 kPa
(
71 psi
)
Operating pressure
Maximum
2013 kPa
(
292 psi
)
Single operation stroke
Lever
637.42 – 833.58 kPa
(
92.45 – 120.90 psi
)
Cylinder
Bore diameter x Rod diameter x Stroke
85 mm
(
3.3 in
) x
45 mm
(
1.8 in
) x
540 mm
(
21.3 in
)
Boom cylinder
Cushion
Extend only
Bore diameter x Rod diameter x Stroke
Ø
80 mm
(
3.1 in
) x Ø
45 mm
(
1.8 in
) x
585 mm
(
23.0 in
)
Arm cylinder
Cushion
Extend and retract
Bore diameter x Rod diameter x Stroke
Ø
70 mm
(
2.8 in
) x Ø
45 mm
(
1.8 in
) x
510 mm
(
20.1 in
)
Bucket cylinder
Cushion
-
Bore diameter x Rod diameter x Stroke
Ø
80 mm
(
3.1 in
) x Ø
45 mm
(
1.8 in
) x
400 mm
(
15.7 in
)
Boom swing
cylinder
Cushion
-
Bore diameter x Rod diameter x Stroke
Ø
95 mm
(
3.7 in
) x Ø
50 mm
(
2.0 in
) x
152 mm
(
6.0 in
)
Dozer cylinder
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.
Types of shoes – Steel double grouser
Shoe width
300 mm
(
11.8 in
)
Ground pressure
28.3 kPa
(
4.1 psi
)
Overall width
1550 mm
(
61.0 in
)
Types of shoes – Rubber track
Shoe width
300 mm
(
11.8 in
)
Ground pressure
27.6 kPa
(
4.0 psi
)
Overall width
1550 mm
(
61.0 in
)
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