background image

R

ELIABILITY

F

EATURES

E

ASY

M

AINTENANCE

8

OFF-HIGHWAY TRUCK

HD405

-7

O

F F

- H

I G H W A Y

T

R U C K

High-rigidity frame

Cast-steel components are used in the 

main frame for high-

stress areas where

loads and shocks are 

most con-

centrated.

Komatsu components

Komatsu manufactures the engine, torque converter, 

transmission, hydraulic units, and electrical parts on this

dump truck. Komatsu dump trucks are manufactured with an

integrated production system under a strict quality control

system.

Rigorous dump body design

The standard dump body is made of 

160 kg/mm

2

227,520 PSI

high-tensile-strength steel for excellent rigidity and reduced

maintenance  cost. The V-

shape design also

increases structural strength.

The side and bottom plates of

the dump section are rein-

forced with ribs for added

strength.

Reliable hydraulic system

The oil cooler is installed in the radiator lower tank, improv-

ing the reliability of the hydraulic system during sudden tem-

perature rises. Further, in addition to the main filter, a 25-

micron line filter is at the entrance to the transmission con-

trol valve. This system helps to prevent secondary faults.

Sealed DT connectors

Main harnesses and 

controller connectors are

equipped with sealed DT

connectors providing high

reliability, water resistance

and dust resistance.

ABS (Antilock braking system)

(Option)

Using its outstanding electronics technology, Komatsu is

the first in the industry to introduce ABS on construction

machinery. This system prevents the tires from locking,

thus minimizes skidding under slippery conditions while

applying the service brake.

ASR (Automatic spin regulator)

(Option)

ASR automatically prevents the rear tires on either side

from slipping on soft ground for optimal traction.

Protection functions supported by electronic control

Item

Function

Downshift inhibitor 

Over-run inhibitor 

Reverse inhibitor 

Forward/Reverse shift inhibitor 

Anti-hunting system 

Neutral safety

Even if the driver downshifts accidentally,a speed appropriate to the current gear is automatically set,preventing over-runs.

When descending grades, if the vehicle's speed surpasses the maximum for the current gear, 
the rear brakes automatically operate, preventing over-runs.

The vehicle is prevented from moving backward when operating the body.

This device makes it impossible to shift from forward to reverse when the vehicle's speed surpasses 4 km/hour.

When running near a shift point, smooth automatic shifting takes place.

The engine is prevented from starting when the shift lever is not in neutral.

Flat face-to-face O-ring

seals are used to securely

seal all hydraulic hose 

connections and to prevent

oil leakage.

Flat face-to-face O-ring seals

Advanced monitoring system

Extended oil change intervals

In order to minimize operating costs, oil change intervals

have been extended:

Engine oil 500 hours

Hydraulic oil 4000 hours

Centralized greasing
points

(Option)

Greasing points are central-

ized at three locations.

Flange type rim

Flange type rims provide

easy removal/installation for

the tires.

Electric circuit breaker

A circuit breaker is adopted in

important electric circuits that

should be restored in a short

time when a problem occurs

in the electrical system.

Brake cooling oil recovery tank

To protect environment, a tank is installed to recover brake

cooling oil in the event of brake floating seal leakage.

Pedal-operated secondary brake

If there should be a failure in the foot brake, the parking

brake and front disc brakes

are activated as pedal operat-

ed secondary brake. In addi-

tion, when hydraulic pressure

drops below the rated level,

the parking brake is automati-

cally actuated.

Lead-free radiator

In addition to compliance with emission regulations, a lead-

free aluminum core is adopted for the radiator to comply

with global environmental requirements.

The Komatsu advanced monitoring system identifies main-

tenance items, reduces diagnostic times, indicates oil and

filter replacement hours and displays abnormality codes.

This monitor system helps to maximize machine production

time.

Wet multi-disc brakes and fully hydraulic braking
systems

mean lower maintenance costs and higher relia-

bility. Wet disc brakes are fully sealed to keep contaminants

out, reducing wear and maintenance. Brakes require no

adjustments for wear, meaning even lower maintenance.

Added reliability is designed into the braking system by the

use of three independent hydraulic circuits providing

hydraulic backup should one of the circuits fail. Fully

hydraulic braking systems eliminate the air system so air

bleeding is not required, and water condensation that can

lead to contamination, corrosion and freezing is eliminated. 

O-ring

Nipple

Hose

Centralized arrangement of filters

The filters are centralized so that they can be

serviced easily.

9

HD405

-7

Содержание Galeo HD405-7

Страница 1: ... type Payload meter II memory card type PM service connectors Pull hook rear Radiator shutter canvas type Spare parts for first service Tool kit Vandalism protection shows the amount of increased weight ENGINE AISS Automatic Idling Setting System Alternator 50A 24V Batteries 2 x 12V 170Ah Engine Komatsu SAA6D140E 5 Mode selection system Starting motor 1 x 11 0 kW CAB Ashtray Cigarette lighter Cup ...

Страница 2: ...g 165 520 lb Operator Environment Wide spacious cab with excellent visibility Ergonomically designed cab Easy to see instrument panel Ideal driving position settings K ATOMiCS with Skip shift function Hydropneumatic suspension Built in ROPS FOPS Viscous cab mounts Electric body dump control lever Supplementary steering and secondary brakes Three mode hydropneumatic suspension Automatic suspension ...

Страница 3: ...n steering The speed can be set at increments of 1 km h 0 6 MPH per click 5 km h 3 1 MPH of maximum speed adjustment to match the optimum speed for the slope Also since the retarder cooling oil temperature is always monitored the speed is automatically lowered Go down slope at constant speed UP SET DOWN CANCEL AUTO RETARD SPEED CONTROL Fully hydraulic controlled wet multiple disc brakes and retard...

Страница 4: ... to angle of ascent Reduced frequen cy of downshift and smoother operation are pro vided Hydropneumatic suspension for all terrains The hydropneumatic suspension assures a comfortable ride even over rough terrain and ensures maximum productivity and operator confidence Viscous cab mounts Viscous mounts reduce the noise transmitted to the cab and achieve a quiet 77 dB A noise level Built in ROPS FO...

Страница 5: ...mpossible to shift from forward to reverse when the vehicle s speed surpasses 4 km hour When running near a shift point smooth automatic shifting takes place The engine is prevented from starting when the shift lever is not in neutral Flat face to face O ring seals are used to securely seal all hydraulic hose connections and to prevent oil leakage Flat face to face O ring seals Advanced monitoring...

Страница 6: ...Material thickness Bottom 25 mm 0 98 Front 16 mm 0 63 Sides 14 mm 0 55 Target area inside length x width 5590 mm x 3380 mm 18 4 x 11 1 Dumping angle 48 Height at full dump 7925 mm 26 0 Heating Exhaust heating HYDRAULIC SYSTEM Hoist cylinder Twin 2 stage telescopic type Relief pressure 20 6 MPa 210 kg cm2 2 990 PSI Hoist time 10 sec CAB Dimensions comply with ISO 3471 and SAE J1040 1988c ROPS Roll ...

Отзывы: