GROUP 2 SPECIFICATION

1. MAJOR COMPONENTS

Bucket Tire Head light Hydraulic tank Radiator

Boom Boom cylinder Main control valve Battery Counterweight

Bell crank Bucket cylinder Cab Main pump Rain cap Air cleaner Muffler

Bucket link Front axle Steering cylinder Transmission Rear axle Engine Fuel tank

7409B2SP05

1-10
2. SPECIFICATIONS
WITH TOOTH TYPE BUCKET

F
B

I
J

5120
H

3820

C
40

G
K
50
3
594 0

D
5
E
A

7409B2SP03

Description Unit Specification

Operating weight kg (lb) 12200 (26900)
Struck 1.7 (2.2)
Bucket capacity m3 (yd3)
Heaped 2.0 (2.6)
Overall length A 7425 (24' 4")
Overall width B 2600 (8' 6")
Overall height C 3260 (10' 8")
Ground clearance D 417 (1' 4")
Wheelbase E mm (ft-in) 2900 (9' 6")
Tread F 1900 (6' 3")
Dump clearance at 45˚ G 2770 (9' 1")
Dump reach (full lift) H 1035 (3' 5")
Width over tires I 2430 (8' 0")
Dump angle J 48
degree (˚)
Roll back angle (carry position) K 47
Lift (with load) 5.3
Cycle time Dump (with load) sec 1.1
Lower (empty) 3.0
Maximum travel speed km/hr (mph) 38.0 (23.6)
Braking distance 12 (39' 4")
m (ft-in)
Minimum turning radius (center of outside tire) 5.03 (16' 6")
Gradeability degree (˚) 30
Breakout force kg (lb) 12980 (28620)
First gear 6.9 (4.3)
Second gear 12.5 (7.8)
Forward
Third gear 23.7 (14.7)
Travel speed Fourth gear km/hr (mph) 38.0 (23.6)
First gear 7.3 (4.5)
Reverse Second gear 13.2 (8.2)
Third gear 24.9 (15.5)

1-11
3. WEIGHT

Item kg lb
Front frame assembly 904 1990
Rear frame assembly 1316 2900
Front fender (LH & RH) 31 68
Counterweight 700 1540
Cab assembly 700 1540
Engine assembly 443 977
Transmission assembly 447 985
Drive shaft (front) 18 40
Drive shaft (center) 16 35
Drive shaft (rear) 13 29
Drive shaft (upper) 7 15
Front axle (include differential) 580 1280
Rear axle (include differential) 590 1300
Tire (20.5-25, 16PR, L3) 203 448
Hydraulic tank assembly 212 467
Fuel tank assembly 290 639
Main pump assembly 28 62
Fan & brake pump assembly 7 15
Main control valve 34 75
Boom assembly 725 1600
Bell crank assembly 230 510
Bucket link 37 80
2.0 m3 bucket, with tooth 905 2000
Boom cylinder assembly 90 198
Bucket cylinder assembly 111 245
Steering cylinder assembly 19 42
Seat 40 88
Battery 28 62

1-12
4. SPECIFICATION FOR MAJOR COMPONENTS
1) ENGINE
Item Specification
Model Cummins 6BTA 5.9
Type 4-cycle turbocharged diesel engine.
Cooling method Water cooling
Number of cylinders and arrangement 6 cylinders, in-line
Firing order 1-5-3-6-2-4
Combustion chamber type Direct injection type
Cylinder bore × stroke 102×120 mm (4.0"×4.7")
Piston displacement 5900 cc (360 cu in)
Compression ratio 17 : 1
Rated gross horse power 150 hp at 2200 rpm
Maximum gross torque at 1500 rpm 67 kgf·m (483 lbf·ft)
Engine oil quantity 15ℓ(4.0 U.S. gal)
Wet weight 443 kg (977 lb)
High idling speed 2300±50rpm
Low idling speed 950±50 rpm
Rated fuel consumption (at rated) 223 g/kw·hr
Starting motor Nippondenso PA 90S (24 V-4.8 kW)
Alternator Delco Remy 24SI (24V-70Amp)
Battery 4×12V×80Ah

1-13
 2) MAIN PUMP
Item Specification
Type Variable piston pump
Capacity 74 cc/rev
Maximum operating pressure 280 kgf/cm2 (3980 psi)
High operating speed 2300 rpm
Rated output flow 153ℓ/min (40.4 U.S.gpm)

3) FAN AND BRAKE PUMP

Specification
Item
Fan Brake
Type Fixed displacement tandern helical gear pump
Capacity 9.1 cc/rev 9.1 cc/rev
Maximum operating pressure 120 kgf/cm2 (1710 psi) 150 kgf/cm2 (2130 psi)
High operating speed 2300 rpm
Rated output flow 19ℓ/min (5.0 U.S.gpm) 19ℓ/min (5.0 U.S.gpm)

4) MAIN CONTROL VALVE

Item Specification
Type 2 spool (sectional block)
Operating method Hydraulic pilot assist
Main relief valve set pressure 280 kgf/cm2 (3980 psi)
★
Overload relief valve set pressure 340 kgf/cm2 (4840 psi) / 300 kgf/cm2 (4270 psi)
★ : Bucket dump

5) REMOTE CONTROL VALVE

Item Specification
Type Joystick (or with aux lever)
Minimum 3.7 kgf/cm2 (52.6 psi)
Control pressure
Maximum 30 kgf/cm2 (427 psi)

6) CYLINDER
Item Specification
Boom cylinder Bore dia×Rod dia×Stroke Ø110×Ø65×738 mm
Bucket cylinder Bore dia×Rod dia×Stroke Ø125×Ø70×505 mm
Steering cylinder Bore dia×Rod dia×Stroke Ø 65×Ø40×429 mm

1-14
7) DYNAMIC POWER TRANSMISSION DEVICES

Item Specification
Model ZF 4WG160
Torque converter Type Single-stage, single-phase
Ratio 2.57 : 1
Type Full-automatic power shift
Gear shift Forward fourth gear, reverse third gear
Transmission
Control Electrical single lever type, kick-down system
Pump rated flow 85ℓ/min (22.5 U.S.gpm) at 2000 rpm
Drive devices 4-wheel drive
Axle Front Front fixed location
Rear Oscillation±12˚ of center pin-loaded
Wheels Tires 20.5-25, 16PR (L3)
Travel Four-wheel, wet-disc type, full hydraulic
Brakes
Parking Parking actuator with transmission
Type Full hydraulic, articulated
Steering
Steering angle 40˚ to both right and left angle, respectively

1-15
5. TIGHTENING TORQUE OF MAJOR COMPONENT
Torque
No. Descriptions Bolt size
kgf·m lbf·ft
1 Engine mounting bolt, nut (flywheel side) M16×2.0 29.7 ± 4.5 215 ± 32.5
2 Engine mounting bolt, nut (front gear cover side) M20×2.5 57.9 ± 8.7 419 ± 63
3 Engine mounting bolt (bracket, 14EA) M12×1.75 10.7 ± 1.6 77.4 ± 11.6
4 Engine Radiator mounting bolt M16×2.0 29.7 ± 4.5 215 ± 32.5
5 Fuel tank mounting bolt, nut M16×2.0 29.7 ± 4.5 215 ± 32.5
6 Air cleaner mounting bolt M8×1.25 2.5 ± 0.5 18.1 ± 3.6
7 Muffler mounting nut M12×1.75 10.7 ± 1.6 77.4 ± 11.6
8 Main pump housing mounting bolt M16×2.0 29.7 ± 4.5 215 ± 32.5
9 Fan & brake pump housing mounting bolt M10×1.5 6.9 ± 1.4 50 ± 10.1
10 Main control valve mounting bolt M10×1.5 6.9 ± 1.4 50 ± 10.1
11 Steering unit mounting bolt M10×1.5 6.9 ± 1.4 50 ± 10.1
12 Hydraulic Stop valve M10×1.5 6.9 ± 1.4 50 ± 10.1
13 system Brake valve mounting bolt M8×1.25 2.5 ± 0.5 18.1 ± 3.6
14 Cut-off valve mounting bolt M12×1.75 12.8 ± 3.0 92.6 ± 21.7
15 Remote control lever mounting bolt M6×1.0 1.1 ± 0.2 8.0 ± 1.4
16 Safety valve M10×1.5 6.9 ± 1.4 50 ± 10.1
17 Hydraulic oil tank mounting bolt M16×2.0 29.7 ± 4.5 215 ± 32.5
18 Transmission mounting bolt, nut (rubber, 4EA) M20×2.5 57.9 ± 8.7 419 ± 63
19 Transmission mounting bolt (bracket) M16×2.0 18.4 ± 2.0 133 ± 14.5
20 Power Front axle mounting bolt, nut M24×2.0 100 ± 15 723 ± 108
train
21 system Rear axle support mounting bolt, nut M24×2.0 100 ± 15 723 ± 108
22 Tire mounting nut M22×1.5 79 ± 2.5 571 ± 18.1
23 Drive shaft joint mounting bolt, nut 3/8-24UNF 6.0 ± 0.8 43.4 ± 5.8
24 Counterweight mounting bolt M30×3.5 199 ± 30 1439 ± 216
25 Others Operator's seat mounting bolt M8×1.25 3.4 ± 0.8 24.6 ± 5
26 ROPS Cab mounting bolt (4EA) M20×2.5 58 ± 8.7 419 ± 63

1-16
6. TORQUE CHART

Use following table for unspecified torque.

1) BOLT AND NUT

(1) Coarse thread

8T 10T
Bolt size
kg·m lb·ft kg·m lb·ft
M 6×1.0 0.85 ~ 1.25 6.15 ~ 9.04 1.14 ~ 1.74 8.2 ~ 12.6
M 8×1.25 2.0 ~ 3.0 14.5 ~ 21.7 2.73 ~ 4.12 19.5 ~ 29.8
M10×1.5 4.0 ~ 6.0 28.9 ~ 43.4 5.5 ~ 8.3 39.8 ~ 60
M12×1.75 7.4 ~ 11.2 53.5 ~ 79.5 9.8 ~ 15.8 71 ~ 114
M14×2.0 12.2 ~ 16.6 88.2 ~ 120 16.7 ~ 22.5 121 ~ 167
M16×2.0 18.6 ~ 25.2 135 ~ 182 25.2 ~ 34.2 182 ~ 247
M18×2.5 25.8 ~ 35.0 187 ~ 253 35.1 ~ 47.5 254 ~ 343
M20×2.5 36.2 ~ 49.0 262 ~ 354 49.2 ~ 66.6 356 ~ 482
M22×2.5 48.3 ~ 63.3 350 ~ 457 65.8 ~ 98.0 476 ~ 709
M24×3.0 62.5 ~ 84.5 452 ~ 611 85.0 ~ 115 615 ~ 832
M30×3.0 124 ~ 168 898 ~ 1214 169 ~ 229 1223 ~ 1655
M36×4.0 174 ~ 236 1261 ~ 1703 250 ~ 310 1808 ~ 2242

(2) Fine thread

8T 10T
Bolt size
kg·m lb·ft kg·m lb·ft
M 8×1.0 2.17 ~ 3.37 15.7 ~ 24.3 3.04 ~ 4.44 22.0 ~ 32.0
M10×1.25 4.46 ~ 6.66 32.3 ~ 48.2 5.93 ~ 8.93 42.9 ~ 64.6
M12×1.25 7.78 ~ 11.58 76.3 ~ 83.7 10.6 ~ 16.0 76.6 ~ 115
M14×1.5 13.3 ~ 18.1 96.2 ~ 130 17.9 ~ 24.1 130 ~ 174
M16×1.5 19.9 ~ 26.9 144 ~ 194 26.6 ~ 36.0 193 ~ 260
M18×1.5 28.6 ~ 43.6 207 ~ 315 38.4 ~ 52.0 278 ~ 376
M20×1.5 40.0 ~ 54.0 289 ~ 390 53.4 ~ 72.2 386 ~ 522
M22×1.5 52.7 ~ 71.3 381 ~ 515 70.7 ~ 95.7 512 ~ 692
M24×2.0 67.9 ~ 91.9 491 ~ 664 90.9 ~ 123 658 ~ 890
M30×2.0 137 ~ 185 990 ~ 1338 182 ~ 248 1314 ~ 1795
M36×3.0 192 ~ 260 1389 ~ 1879 262 ~ 354 1893 ~ 2561

1-17
2) PIPE AND HOSE (FLARE type)
Thread size Width across flat (mm) kgf·m lbf·ft

1/4" 19 4 28.9
3/8" 22 5 36.2
1/2" 27 9.5 68.7
3/4" 36 18 130
1" 41 21 152
1-1/4" 50 35 253

3) PIPE AND HOSE (ORFS type)

Thread size Width across flat (mm) kgf·m lbf·ft

9/16-18 19 4 28.9
11/16-16 22 5 36.2
13/16-16 27 9.5 68.7
1-3/16-12 36 18 130
1-7/16-12 41 21 152
1-11/16-12 50 35 253

4) FITTING

Thread size Width across flat (mm) kgf·m lbf·ft

1/4" 19 4 28.9
3/8" 22 5 36.2
1/2" 27 9.5 68.7
3/4" 36 18 130
1" 41 21 152
1-1/4" 50 35 253

1-18
7. RECOMMENDED LUBRICANTS
Use only oils listed below or equivalent.
Do not mix different brand oil.
Ambient temperature˚C (˚F)
Capacity
Service point Kind of fluid -20 -10 0 10 20 30 40
ℓ (U.S. gal)
(-4) (14) (32) (50) (68) (86) (104)

SAE 30

SAE 10W
Engine oil pan Engine oil 15 (4.0)
SAE 10W-30

SAE 15W-40

SAE 10W-30
Transmission Engine oil 25 (6.6)
SAE 15W-40

Front : 21.2 (5.6)

Axle Gear oil SAE80W-90LS/API GL-5
Rear : 21.2 (5.6)

ISO VG 32
Tank:
151 (39.8)
Hydraulic tank Hydraulic oil ISO VG 46
System:
184 (48.6)
ISO VG 68

ASTM D975 NO.1

Fuel tank Diesel fuel 220 (58.1)
ASTM D975 NO.2

NLGI NO.1
Fitting
Grease As required
(grease nipple) NLGI NO.2

Mixture of
antifreeze Ethylene glycol base permanent type
Radiator 34 (9.0)
and water
50 : 50

·SAE : Society of Automotive Engineers ·NLGI : National Lubricating Grease Institute

·API : American Petroleum Institute ·ASTM : American Society of Testing and Material
·ISO : International Organization for Standardization

1-19