موتور گریدر GD705A-4

تاریخ : جمعه 4 بهمن 1392
نویسنده : mohamadaref


КОМATSU           

MOTOR GRADER  GD705A-4

 

WITH              

4320 MM. BLADE        

11-SHANKS SCARIFIER    

 3-SHANKS RIPPER       

STEEL CAB          

HEATER & DEFROSTER    

FOR -30C - + 40 C       

 

KOMATSU GD705A-4     

 

( WITH HYDROSHIFT TRANSMISSION, ARTICULATED TYPE)

 

      Specification

OPERATING WEIGHR: (APPROXIMATE)

Includes full fuel tank, lubricants, coolant, hydraulic equipments, operator, 4320mm blade

and 16.00-24-16PR traction-type tires.

 

On front wheels                                                  4885 kg

On rear wheels                                                12735 kg

Total weight                                                    17620 kg

DIMESIONS       

Overall length                                                  9270 mm

Overall width                                                    2800 mm

Overall length                                                  3365 mm

Wheel base                                                     6450 mm

Distance between centers of tandem wheels      1730 mm

TREAD  

Front                                                            2300 mm

Rear                                                             2300 mm

Ground clearance                                             410 mm

               

PERFORMANCE               

Travel speed     

Forward              

1-st                                                                3.9 km/h

2-nd                                                              5.2 km/h

3-rd                                                              7.6 km/h

4-th                                                             11.0 km/h

5-th                                                             15.2 km/h

6-th                                                            20.5 km./h

7-th                                                            30.0 km/h

8-th                                                            43.0 km/h

 

REVERSE             

1-                                                                   4.1 km/h

2-                                                                   5.6 km/h

    3-rd                                                            8.1 km/h

    4-th                                                            11.7km/h

    5-th                                                           16.2km/h

    6-th                                                           21.8 km/h

    7-th                                                          31.9 km/h

    8-th                                                          45.9 km/h

  Max. Drawbar pull                                    10180 kg

  Overturn angle                                              35 '

               

ENGINE:              

  Model                 KOMATSU S6D125

Type      Water cooled, 4-cycle, overhead valve, direct injection type diesel engine with turbocharged

No. of cylinders – bore x stroke 6 – 125mm Х 150 mm

Piston displacement                        11.05 ltr

Performance:   

Rated RPM                                            2000 RPM

Flywheel horsepower    200 HP         (149 kW)

  Max. torque     90.5 kg.m (655 IB.FT/887 Nm . at engine  1300RPM

Fuel system:     

Fuiel      Diesel gas oil, ASTM Specification D975-60T No. 2D

Governor            Mechanical, all speed control

 Lubrication system        

Lubricating method         Gear pump, forced lubrication

Filter      Full-flow type

Oil cooler             Water cooled

 Air cleaner         Dry type with automatic dust evacuator and dust indicator.

Cooling system                 Forced circulation by centfifugal water pump, pusher  type fan.

 

Starting system

Type      Electric starting motor

Starting motor                    24 V, 11 KW

Alternator                         24 V, 50 A.

Battery                              24 V, (12 V Х 2) -200 Ah

TRANSMISSION:              

Type      Planetary gear and multiple disc cluth hydraulically actuated, forced lubrication

Gear shift            8 forward and , 8 rear speeds

FINAL DRIVE       Spur gear and spiral bevel gear double reduction with No-spin differential.

REAR AXLE          Full floating, forged heat-treated steel

TANDEM DRIVE                Roller chain drive

FRONT AXLE:

Type     

Reverse elliot type, hydraulic leaning

Max. Leaning angle            23.5 ‘ left  or  right

Clerance                               630 mm

Oscillates                             13 ‘left or right

WHEELS:             

Front  wheel:    

Tire        2 X 16.00-24-16 TB (G-2)  traction-type

Rim                                            10.00 VA X 24 SDC

Inflation pressure            2.2  kg / cm ²  (216 kРа)

Rear wheel:

Tire4 X 16.00-24-16 TB (G-2) traction-type

  Rim10.00VA x 24 SDC

  Inflation pressure 2.2 kg/cm2 (216 PSI)

 

STEERING:          

Type      Full hydraulic power steering

  Steering angle 50 ‘ left or right

Frame- hydraulically actuated steering   26’ left or right

  Minimum turning radius             7.5 m

BRAKES:              

  Service brake   Air actuated oil disc brakes on 4 rear wheels,  (Sealed and adjustment-free)

Parking brake    Mechanical, internal expanding actuated on transmission output shaft

FRAME:               

Main frame                                                           Box – section, steel plate, welded construction

Section (width x height)                280 mm Х 360 mm

  Rear frame       Two box-section, steel plate, welded construction.

DRAWBAR          

Type      А-shaped, welded construction

  Section (height x thickness)      220 mm X 19 mm

CIRCLE:

Type      Internal gear

Outside diameter            1550 mm

Turning angle     360 ‘

  Circle rotation control  Hydraulic type

POWER CONTROL UNIT:              

  Type    Hydraulically controlled,   8-spool type control valve with safety valve

HYDRAULIC CONTROL UNIT:      

Hydraulic pump                3 gear pump

Max. oil pressure             175  kg/cm²

Capacity (discharge flow):            50+50 ltr / min1 x 50 ltr min at engine 2000 RPM

 

 

  Oil motor:         

Type      Orbit type

Capacity                                             150.2 ltr/min

  Output horsepower                     58.5PS (43KW)

 

 MOLDBOARD:

               

Type      Wear-resistant steel, with box-section reinforcement with hydraulic sideshift and tip

Lenght x height x thickness         4320 mm  Х  700 mm  Х 25 mm

Number of cutting edges – length x height x thckness2- 2134 mm  Х  203 mm  Х 16 mm

Cutting edge bolt diameter         19.05 mm (3/4)

Blade load                                        8875 kg

Blade base                                      2900 mm

BLADE RANGE: 

Max. lift above ground                 435 mm

Max. drop below ground              450 mm

Max. shoulder reach:    

Left                                                    2320 mm

Rifht                                                 2350 mm

Max. Bank cutting angle                90’

Cutting angle:   

Max.                                               84 ‘

  Min.                                                26 ‘

Hydraulic blade tip           45’ forward,   7’  backward

               

               

SERVICE CAPACITY:        

Specified   Refield

Cooling water          55 ltr                                     45 ltr

Fuel tank               400 ltr                                       400 ltr

Engine                   30 ltr                                       24 ltr

Transmission             48 ltr                                   24 ltr

Tandem drive case, (each)           105 ltr       105 ltr

Final drive               40 ltr                                    32 ltr

Hydraulic oil        120 ltr                                     60 ltr

 

KOMATSU  GD705A-4 SCARIFIER

(STANDART AND POINT TOOTH)

SPECIFICATION

STD    :  STANDART

(POINT )

  POINT:  POINT TOOTH

ADDITION TO WEIGHTS:              

To operation weight   (1040 kg       1050 kg

To front axle: (STD) (POINT)        880 kg  890  kg

To rear axle (STD, POINT)             160 kg

SPECIFICATIONS OF SCARIFIER:

Type V-type, 2-stage adjustable

No. Of teeth                     11

As-installed height x width x 265 mm Х 77 mm Х 25 mm

thickness (STD)                        185 mm Х 50 mm Х 36 mm   

(POINT)                                     1325 mm

Digging width (STD)                1350 mm

  (POINT)                                    445 mm

  Max. digging depth (STD)    430 mm

  (POINT))                                  570 mm

  Max. lift above ground (STD) 555 mm

   (POINT)                                       1000 mm

  Scarifier base (STD)                    945 mm

   (POINT)                                        6690 kg

Scarifier load (STD)                       6630 kg

(POINT)

Cutting angle                                     66.5’

                            

Standard cutting angle  (STD)    56.0’

  (POINT)                                           67.5’

Max. cutting angle (STD)               63.0’

(POINT)                                             54.0’

Min. cutting angle (STD)                49.0’

(POINT)

Control unit           Controlled with hydraulic cylinder

Weight (STD)                               1040 kg   

  (POINT)                                      1050 kg

HYDRAULIC CONTROL UNIT        

Hydraulic cylinder:

Type Double acting, piston type

No. Of cylinder – bore  1-90 mm

KOMATSU GD705А-4   REAR MOUNTED RIPPER

SPECIFICATIONS   مشخصات

 

Dimansion when installed (Other items are same)           

Overall length                       10685 mm

ADDITION TO WEIGHTS:              

To operation weight       2080 kg

To front axle                       180 kg

  To rear axle                     1900 kg

 

RIPPER EQUIPMENT:

Type           Parallelogram type

Weight                            1410 kg

Beem length                                       2740  kg

Shank:

No. of shanks       3 (Can accommodate up to 7 shanks)

Tooth point                                  Replaceble

Pitch  ( 3 shanks)                          1275 mm

( 7 shanks)                                    425 mm

Max. digging depth                    380 mm

  Max. lift above ground           600 mm

Max. digging width                   2610 mm

Ripper base                              3000 mm

Cutting angle                                38’

 

HYDRAULIC CONTROL UNIT:      

  Weight                                             165 kg

  Max. oil pressure                         175 kg/cm2

 

  Hydraulic pump:

Type                    Gear pump

 

Capacity                     105 ltr /min at engine 2000 RPM.

Hydraulic cylinder:

No. Of cylinder – bore                1 – 140 mm

WHEELS:

Front wheels & Rear wheels::   16.00-24-16 TB G2

Tire                                           10.00 VA х 24 SDC

Rim                                                          2.2 kg/cm²

Inflation pressure

 

PUSHER PLATE:                                     805 kg

Weight

KOMATSU  GD705А-4 STEEL CAB (TYPE B)

Specifications مشخصات

 

DIMANSION WHEN INSTALLED (Other items are same) 

Overal height                                      3410 mm

ADDITION TO WEIGHTS:              

To operating weight                             350 kg

To front axle                                          40 kg

To rear  axle                                          310 kg

               

SPECIFICATIONS OF STEEL CAB:

  Type    Steel framework equipped with doors, glass windows.

  Lenght                                                              1540 mm

Width                                                   1715 mm

  Height                                                 1905 mm

  Weight                                                     350 kg 

 


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