11
10
HD325
-7
OFF-HIGHWAY TRUCK
HD325
-7
O
F F
- H
I G H W A Y
T
R U C K
S
PECIFICATIONS
AXLES
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-floating
Final drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Planetary gear
Ratios:
Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.125
Planetary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.737
TRANSMISSION
Torque converter . . . . . . . . . . . . . . . . 3-elements, 1-stage, 2-phase
Transmission . . . . . . . . . . . . . . . . . . . Full-automatic, planetary type
Speed range. . . . . . . . . . . . . . . . . . 7 speeds forward and 1 reverse
Lockup clutch . . . . . . . . . . . . . . . . . . . . . . . . Wet, single-disc clutch
Forward . . . . . . . . . . . . . . . . . . . Torque converter drive in 1st gear,
direct drive in 1st lockup and all higher gears
Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . . . Torque converter drive
Shift control . . . . . . . . . . . . . . Electronic shift control with automatic
clutch modulation in all gear
Maximum travel speed . . . . . . . . . . . . . . . . . . .
70 km/h
43.5 mph
ENGINE
Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA6D140E-5
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Water-cooled, 4-cycle
Aspiration . . . . . . . Turbo-charged,air-to-air after-cooled,cooled EGR
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bore x stroke . . . . . . . . . . . . . . . . . . .
140 mm x 165 mm
5.5" x 6.5"
Piston displacement . . . . . . . . . . . . . . . . . . . . . . . .
15.24 ltr
930 in
3
Horsepower
SAE J1995 . . . . . . . . . . . . . . . . . . . . . . . . Gross
386 kW
518 HP
ISO 9249 / SAE J1349 . . . . . . . . . . . . . . . . . Net
371 kW
498 HP
Rated rpm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,000 rpm
Fan drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical
Maximum torque . . . . . . . . . . . . . . .
2167 N-m 221 kg•m
1,600 lb. ft
Fuel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Direct injection
Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronically controlled
Lubrication system
Method . . . . . . . . . . . . . . . . . . . . . . . Gear pump, force-lubrication
Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-flow type
Air cleaner . . . . . . . . . . . . . . . . . . . . . Dry type with double elements
and precleaner, plus dust indicator
SUSPENSION SYSTEM
Independent, hydropneumatic suspension cylinder with fixed throttle
to dampen vibration.
Effective cylinder stroke (front suspension) . . . . . . . . . .
250 mm
9.8"
Rear axle oscillation:
Oil stopper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.8°
Mechanical stopper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1°
MAIN FRAME
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Box-sectioned structure
STEERING SYSTEM
Type . . . . . . . . . . . . . . . . . . . . . . . . . . Fully hydraulic power steering
with two double-acting cylinders
Supplementary steering . . . . . . . . . . . . . . . . . . . . . . . Manual control
(meets ISO 5010 and SAE J1511)
Minimum turning radius . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 m
23'7"
Maximum steering angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43°
BRAKES
Brakes meet ISO 3450 standard.
Service brakes:
Front . . . . . . . . . . . . . . . . . Fully hydraulic control, caliper disc type
Rear . . . . . . . . . . . . . . Fully hydraulic, oil-cooled, multiple-disc type
Parking brake . . . . . . . . . . . . . . . . . Spring applied, caliper disc type
Retarder . . . . . . Oil-cooled, multiple-disc rear brakes act as retarder.
Secondary brake . . . . . . . . . . . . . . . . . . . . . Manual pedal operation.
When hydraulic pressure drops below the rated level,
parking brake is automatically actuated.
Brake surface
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
968 cm
2
150 in
2
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50847 cm
2
7,881 in
2
WEIGHT (APPROXIMATE)
Empty weight . . . . . . . . . . . . . . . . . . . . . . . . . . .
31600 kg
69,700 lb
Gross vehicle weight with 32 metric ton
(35 U.S.ton) payload . . . . . . . . . . . . . . . . . . .
63680 kg
140,390 lb
Max. gross vehicle weight . . . . . . . . . . . . . . . . .
69280 kg
152,740 lb
Not to exceed max. gross vehicle weight, including options, fuel
and payload.
Weight distribution:
Empty: Front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.7%
Rear axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48.3%
Loaded: Front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33%
Rear axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67%
BODY
Capacity:
Struck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 m
3
23.5 yd
3
Heaped (2:1, SAE) . . . . . . . . . . . . . . . . . . . . . . . .
24 m
3
31.4 yd
3
Payload,maximum . . . . . . . . . . . . . . .
36.5 metric tons
40 U.S. tons
rated. . . . . . . . . . . . . . . . . . . .
32 metric tons
35 U.S. tons
Material . . . . . . . . . . . . . . . . . . . . . . . . . . .
130 kg/mm
2
184,900 psi
high-tensile-strength steel
Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V-shape body
Material thickness:
Bottom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19 mm
0.75"
Front. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 mm
0.47"
Sides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 mm
0.35"
Target area
(inside length x width) . . . . . . .
5500 mm x 3380 mm
18'1" x 11'1"
Dumping angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48°
Height at full dump . . . . . . . . . . . . . . . . . . . . . . . . .
7925 mm
26'00"
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exhaust heating
HYDRAULIC SYSTEM
Hoist cylinder . . . . . . . . . . . . . . . . . . . . Twin, 2-stage telescopic type
Relief pressure . . . . . . . . . . . . . . .
20.6 MPa 210 kg/cm
2
2,990 psi
Hoist time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 sec
CAB
Dimensions comply with ISO 3471 ROPS (Roll-Over Protective
Structure) standard, and ISO 3449 FOPS standard.
TIRES
Standard tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.00-33-32PR
SERVICE REFILL CAPACITIES
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . .
484 ltr.
127.9 U.S. Gal
Engine oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50 ltr.
13.2 U.S. Gal
Torque converter, transmission and
retarder cooling . . . . . . . . . . . . . . . . . . . . . . .
90 ltr.
23.8 U.S. Gal
Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45 ltr.
11.9 U.S. Gal
Final drives (total) . . . . . . . . . . . . . . . . . . . . . . . .
30 ltr.
7.9 U.S. Gal
Hydraulic system . . . . . . . . . . . . . . . . . . . . . . .
129 ltr.
34.1 U.S. Gal
Suspension (total) . . . . . . . . . . . . . . . . . . . . . .
44.2 ltr.
11.7 U.S. Gal
DIMENSIONS
4760mm
15'7"
3660mm
12'0"
3150mm
10'4"
3660mm
12'0"
645 mm
2'1"
4150mm
13'7"
4000mm
13'1"
3850mm
12'8"
1985mm
6'6"
3750mm
12'4"
8465mm
27'9"
2730mm
8'11"
480mm
1'7"
3220mm
10'7"
7925mm
26'0"
8000mm
26'3"
5500mm
18'1"
7895mm
25'11"
48
18.0
0-33
18.0
0-33
7200mm
23'7"
2550mm
8'4"
3380mm
11'1"
588mm
1'11"
F1
F2
F3
F4
F5
F6
F7
70
60
50
40
30
20
10
0
0.5
3
5
6
7
8
9
10
20
30
40
50
2
1
4
35.0
30.0
25.0
20.0
15.0
14.0
13.0
12.0
11.0
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
100
60
80
40
30
20
10
5
4
3
2
1
RIMPULL
0
10
15
20
25
30
35
40
TRAVEL SPEED
MPH
km/h
LOADED
EMPTY
GROSS WEIGHT
x10
3
lb
x10
3
kg
x10
3
lb x10
3
kg
5
TOTAL RESISTANCE (GRADE + ROLLING) (%)
70
80
90
100 110 120 130
150
180
30
40
50
60
70
80
90
TRAVEL PERFORMANCE
0
10
0
10
20
30
40
50
60
20
30
40
50
60
70
80
90
100 km/h
MPH
TRAVEL SPEED
-10
-15
-20
-25
-30
-5
TOTAL RESISTANCE (GRADE + ROLLING) (%)
0
0
50
100
150
200
10
20
30
40
50
60
70
80
90
100
GROSS WEIGHT
x10
3
lb
x10
3
kg
LOADED
EMPTY
F1
F2
F3
F4
F5
F6
F7
0
10
0
10
20
30
40
50
60
20
30
40
50
60
70
80
90
100 km/h
MPH
TRAVEL SPEED
-10
-15
-20
-25
-30
-5
TOTAL RESISTANCE (GRADE + ROLLING) (%)
0
0
50
100
150
200
10
20
30
40
50
60
70
80
90
100
GROSS WEIGHT
x10
3
lb
x10
3
kg
EMPTY
F1
F2
F3
F4
F5
F6
F7
LOADED
Grade distance: Continuous Descent
Grade distance: 450 m (1,480 ft)
To determine travel performance: Read from
gross weight down to the percent of total
resistance. From this weight-resistance point,
read horizontally to the curve with the
highest obtainable speed range, then down
to maximum speed. Usable rimpull depends
upon traction available and weight on drive
wheels.
To determine brake performance: These
curves are provided to establish the
maximum speed and gearshift position
for safer descents on roads with a given
distance. Read from gross weight down
to the percent of total resistance. From
this weight resistance point, read
horizontally to the curve with the highest
obtainable speed range, then down to
maximum descent speed the brakes can
safely handle without exceeding cooling
capacity.
BRAKE PERFORMANCE