MTU C23R Manual de usuario descargar pdf (Pagina 4)

Ease of Operation

Superior Suspension

The Hitachi ACCU-TRAC suspension

system delivers excellent maneuverability,

even at higher speeds. The trailing arm

layout offers greater ease of servicing

while improving truck performance

compared to suspended king-pin

designs. The pivot mounting of the trailing

arm design allows only axial input to the

strut and allows wheel movement to the

vertical plane only.

Features:

• Lateral forces that act on the front

wheels are minimized, resulting in

reduced tire scufﬁng.

• Dynamic friction (side-wall force) within

the strut is low due to the features of

the ACCU-TRAC design, allowing the

use of a lighter strut engineered to a

smaller diameter and longer stroke.

• The necessary frame bulk (horse-

collar structure) needed to mount a

suspended king-pin is non-existent.

• The elimination of the “horse-collar”

member provides greater engine

access.

• The NEOCON strut used with the

ACCU-TRAC suspension, improves

operator and component isolation,

provides better hauler stability and

predictable operational control.

• Locating the king-pin close to the wheel

assembly and at a slight angle results in

low “Dry Park Steering” effort.

• Development of the compressible

media, NEOCON- E

ﬂuid (proprietary,

silicone based, environmentally

friendly) for use in the suspension

strut with helium gas, results in an

improved energy absorption (isolation)

system and an improved energy

release (stability) system that responds

favorably whether traveling empty or

with payload in a wide range of ambient

temperatures.

Auto-Lubrication System

A pump fed system automatically

applies grease to lube points via

plumbing. The lubricant is automatically

delivered in time controlled and

metered quantities to all connected

lube points in the system.

ACCU-TRAC SUSPENSION

NEOCON Strut (Front/Rear)

Helium gas

NEOCON-E

ﬂuid

Impact

Spindle

Each controlled by a hydraulic steering cylinder,

rotates around the king-pin and the outer end of the

trailing arm to position the wheels for steering. The

spindles are attached by one simple tie-rod.

King-Pin

Retains the spindle to the trailing arm. Spindle

rotates around the king-pin, which is locked in posi-

tion. The Neocon-E strut attaches to the top. A bolt

on clevis allows ease of servicing.

Trailing Arm

Main suspension member to which other suspension

components are attached. The trailing arms hinge

on a cross shaft that is clamped to the front of the

frame.

Neocon Strut

The energy absorption and release component of

the ACCU-TRAC suspension system. Pinned to ball

bushings at the frame and at the top of the king-pin

to prevent bending movements from transferring to

the strut. Receives only axial input.

Both Struts at normal height

Both struts in compression

Drivers Side Strut in compression,

other strut in extension

With no horizontal deﬂection

New HI-TECH ROPS/FOPS CAB

This is the latest mining truck cab developed

by Hitachi. A new Hitachi LCD has been

engineered onto the dashboard of the

EH5000ACII to eliminate separate lights and

gauges. The LCD is positioned slightly to the

right of center, allowing for a lower dashboard.

This concept prevents the steering wheel

from obstructing the operators' view of the

LCD and results in better operator visibility

of the ground area immediately ahead of the

truck.

An analog display has been mounted to the

overhead console to display the view of up

to 4 cameras simultaneously. Three cameras

mounted to the rear, right side and front of the

truck are available as standard for improving

visibility.

The ACCU-TRAC suspension design

allows the front struts to be removed

and installed without removing the

trailing arms, brakes or tires. This

relates to fewer tools and less labor

required to perform this service, which

aims to reduce the amount of hauler

downtime,

increasing

productivity.

3 4 5 6

7 8

1512 13 14

1. Speedometer with

odometer

2. Tachometer with shift lever

indicator

3. Engine oil pressure

4. Engine coolant temperature

5. Wheel motor temperature

6. Steer / brake supply

pressure

7. Load weight indicator

8. Fuel gauge

9. Body angle indicator

10. Engine Indicators

11. Hydraulic Filter / Seat belt

12. Central warning

13. Traction control indicator

14. Hydraulic indicators

15. Lamp indicators

16. Service brake / lubricant

indicators

9 10 11

Right side

trailing arm

Input Force Resultant Force

1 2 3 4 5 6 7

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MTU C23R Manual de usuario Pagina 4

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