WORKSHOP MANUAL
DUMPER
KC70
CONTENTS MECHANISM 1. SPECIFICATIONS 2. DIMENSIONS 3. ENGINE
4. TRANSMISSION
5. HYDRAULIC SYSTEM (DUMPING) 6. FUEL SYSTEM 7. V-BELT
8. WIRING DIAGRAM
SERVICING 1. TIGHTENING TORQUE 2. OILS
3. GREASING
4. CAUTION FOR DISASSEMBLING AND REASSEMBLING 5. ADJUSTMENT OF COMPONENT PARTS 6. REPLACEMENT OF WEAR OUT PARTS
7. TROUBLESHOOTING AND COUNTERMEASURES 8. MAINTENANCE INTERVALS
1
MECHANISM 1. SPECIFICATIONS 2. DIMENSIONS 3. ENGINE
4. TRANSMISSION
5. HYDRAULIC SYSTEM (DUMPING) 6. FUEL SYSTEM 7. V-BELT
8. WIRING DIAGRAM
2
1. SPECIFICATIONS Model
Machine weight
Max. loading capacity Engine
Oil and air-cooled, 4cycle, diesel 72 x 68
Output
(KW/rpm)
4.1/2900
Length
(mm)
2300
Height
(mm)
1960
(mm)
620
(cc)
Starting system Width
(mm)
Min. ground clearance
Track center-to-center distance Bed
Length Width
Capacity ( Struck / Heaped )
Crawler type
Number of drive sprocket teeth Crawler pitch Track width
Ground contact length
Ground contact pressure w/o load Ground contact pressure w/t load Max. traction power Travelling speed
(Forward / Reverse) Main clutch
(mm)
820
(mm)
350
( )
300 / 360
Rubber track 7
(mm)
72
200
4 (one side) 980 25
(kgf/cm2) (kgf/cm ) 2
(kgf)
1st
(km/h)
3rd
(km/h)
2nd
(km/h)
Steering clutch
Screw type with spring 0.15 0.33 680
Gear shift type transmission 0 - 1.4 / 0 - 1.3 0 - 2.7 / 0 - 2.6 0 - 4.4 / 0 - 4.3
Belt tension with Foot pedal or Hand lever Tooth clutch
Steering brake
Internal expanding type
Dumping type
Hydraulic
Parking brake
Dumping direction
Max. Dumping angle
Raising time (at 2900rpm) Capacity
1250
(° )
Alignment
Electric
130
(mm)
Gradeability
Type
(mm)
(mm)
Number of track rollers
276
880
(mm)
Height
Dumping performance
1
(mm)
Total Displacement
Transmission
700
KUBOTA OC60-E3-D1-D-CRYM-1
Type
Bore and Stroke
Undercarriage
510
(kg)
Model No. of cylinder
Dimensions
KC70
(kg)
Lowering time (at 2900rpm) Fuel tank
Hydraulic oil tank Engine oil
Transmission oil
Internal expanding type Front
(° )
68 (43)
(sec)
4.2
(sec) ( ) ( ) ( ) ( )
6.4 8.5 1.5 1.3 1.9
3
4
2. DIMENSIONS
3. ENGINE
Model : OC60-E3-D1-D-CRYM-1 / Code No : 1G181-31000 See the WSM / DIESEL ENGINE OC60-E3 (Code No 9Y131-00690)
Specifications Model
OC60-E3(-X)
Number of Cylinders Type
Bore×Stroke
Total Displacement
ISO Net Continuous
mm (in.)
cm (cu.in.) 3
kW/min-1 (rpm)
OC60-E3(-X)-L
OC95-E3(-X)
OC95-E3(-X)-L
Oil-cooled 4-cycle diesel engine
72.0 x 68.0 (2.83 x 2.68)
83.0 x 77.0 (3.27 x 3.03)
4.2 / 3600
6.25 / 3600
276 (16.8)
416 (25.4)
(HP/min-1 (rpm))
(5.6 / 3600)
(8.38 / 3600)
kW/min-1 (rpm) (HP/min-1 (rpm))
(6.0 / 3600)
(9.4 / 3600)
ISO/SAE Net Intermittent Maximum Bare Speed
Minimum Bare Idling Speed Combustion System
(min-1 (rpm))
4.5 / 3600
(min-1 (rpm))
3800
TVCS (Three-vortex combustion system) ND type (DENSO)
Governor
Centrifugal mechanical governor
Direction of Rotation
Clockwise (View from flywheel side)
Injection Nozzle
Injection Timing (Static)
DN4PD82 (DENSO)
0.28 rad (16°)
0.24 rad (14°)
before T.D.C.
Injection Pressure
before T.D.C.
13.73 MPa (140,0 kgf/cm , 1991 psi) 2
Compression Ratio
24.5 : 1
Lubricating System
24.0 : 1
Forced lubrication by trochoid pump
Oil Pressure Indicating
Electrical Type Switch
Lubricating Filter
Oil strainer
Cooling System
Oil cooling + Air cooling
Starting System Starting Motor
12V 0.7kW
Starting Support Device
Electric starting with starter
12V 1.2kW
By Glow Plug in Combustion Chamber
EGR
Battery
12V, 27 AH equivalent
Charging Alternator
12V, 48W
Fuel
Fuel Tank Capacity
12V, 170W
None
12V, 36 AH equivalent
12V, 48W
Diesel Fuel No.2-D S500 or S15, see page G-5.
3.5L (0.92 U.S.gals)
Lubricating Oil
Lubricating Oil Capacity
7.0 / 3600
1300
Fuel Injection Pump
Weight (Dry)
1
12V, 170W
5.5L (1.5 U.S.gals)
Class CF lubricating oil as per API classification is recommended. For details on recommended lubricating oils, see page G-6.
kg(lbs)
1.3L (1.4 U.S.qts) 38.0 (83.8)
1.7L (1.8 U.S.qts) 56.0 (123)
W10441170
5
Performance curves
1.2
9.8
1.0
7
5.2
kgf . m
23.6
2.4
(5)
21.6
(1)
kW
11.8
(1)
2.2
19.6
2.0
17.6
1.8
10
7.4
(1)
kW
1.4
N.m
(5)
13.7
(1)
kgf . m
OC95-E3
N.m
OC60-E3
(6) (6)
6
5
3.7
(7)
6.7
9
(2)
8
5.9
(7)
(2)
(2)
4
3.0
7
5.2
3
2.2
6
4.4
HP
HP
(2)
4.4
295
220
(8)
268
210 200
18
20
22
24
(4)
26
28
30
32
34
(3)
(3)
g/kW . h
282
g/HP . h
g/kW . h
(3)
5 220
(8)
282
200
18
20
22
(5) Net Intermittent Torque (6) Net Intermittent B.H.P.
Fuel consumption
Fuel consumption(L/h)
Fuel consumption KC70
Work load factor(%)
6
24
(4)
min-1(rpm) x 100
(3) Fuel Consumption (4) Engine Speed
(3)
190
255
36
3ECAAACEP001A
(1) Touque (2) Brake Horsepower
210
268
g/HP . h
295
26
28
min-1(rpm) x 100
30
32
34
36
Intermittent Continuous
(7) Net Continuous B.H.P. (8) Net Intermittent B.S.F.C.
Thank you very much for your reading. Please Click Here. Then Get COMPLETE MANUAL. NO WAITING
NOTE: If there is no response to click on the link above, please download the PDF document first and then click on it.
Dimension • STANDARD TYPE [OC60-E3]
3ECAAACFP001A
A B C
STANDARD TYPE
133.5 mm (5.256 in.) 121 mm (4.76 in.) 164 mm (6.46 in.)
D
403.0 mm (15.87 in.)
F
47.0 mm (1.85 in.)
H
461.0 mm (18.15 in.)
E
G I
J
K
3.0 mm (0.12 in.)
40.0 mm (1.57 in.)
458.0 mm (18.03 in.) 138 mm (5.43 in.)
95.0 mm (3.74 in.)
W1032756
7