Training máy đào komatsu pc1250-7 - P6

GỒM CÁC PHẦN: Cab & Operator Environment.ppt Electronic Control Systems.ppt Electronics Control System – Monitors Recap.ppt Hydraulics.ppt Improved_CSS.ppt Introduction.ppt Mechanicals Power Trainand Structures.PPT Technical Presentation Ki

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Technical Presentation Kit

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PREV NEXT FIRST LAST MENU EXIT

PRODUCTIVITY FEATURES [NO.1]

 If you want to carry out more work and you

have the choice between two machines of more or less the same performance,

remember that power makes the difference The engine on the PC1250 is the highest in its class: it is 29 kW (39 HP) larger than on the current machine and 7

kW (9 HP) larger than Hitachi EX1200

Engine model — Komatsu SAA6D170E-3 Komatsu SAA6D170E-2 MHI S6R-Y1TAA1

Engine output kW/rpm {HP/rpm} 485/1800 {650/1800} 456/1800 {611/1800} 478/1650 {641/1650} Piston displacement ltr (cu.in) 23.2 (1416) 23.2 (1416) 24.5 (1495)

Aftercooler — Air-cooled Air-cooled Air-cooled

(38.6 × 35.6 × 2.6) (38.6 × 27.9 × 2.6) Aftercooler core size mm (in)

Komatsu

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 An air-cooled after cooler with excellent cooling efficiency is used

By reducing the temperature of the air supply, it has become possible to realize high output while reducing NOx

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 Active mode (A mode) supplies maximum engine power

resulting in high levels of production

 Economy mode (E mode) improves fuel consumption

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(LARGEST IN ITS CLASS)

 Increasing the weight of

the machine and moving

the center of gravity to the

rear has made it possible

to increase the bucket

capacity by 4%, which

gives this machine the

largest bucket capacity in

its class

 The weight of the

machine has been

increased approx 4

tons (4.8 U.S tons)

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 The weight of the counterweight has

been increased from 17.4 tons (19.2 U.S

tons) to 18.0 tons (19.8 U.S tons)

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(large mouth, shallow bucket bottom)

 The bucket capacity loading

ratio has been improved by the large digging force and the shape of the bucket with its large mouth and shallow bottom

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RELIABILITY AND DURABILITY FEATURES

[NO.1]

 The basic strength of the boom was increased when PC1000 was

model-changed into PC1100 Keeping this strength, the boom of PC1250 is farther improved

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[NO.2]

 The basic strength of the arm was increased when PC1000 was

model-changed into PC1100 Keeping this strength, the arm of PC1250 is farther improved

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[NO.3]

1 Quarries, sand and gravel, mining

 This bucket is used to load blasted rocks in heavy rock

applications of all types

 The side plates and bottom plates are thickened to increase the

rigidity of the whole bucket

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[NO.4]

2 Highly abrasive rock applications

 This bucket is used in quarries where the bucket wears quickly

The wear resistance of its bottom corners is increased

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[NO.5]

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[NO.6]

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[NO.7]

 The shape of the travel piping cover is changed to protect the

piping from flying rocks and increase the reliability and durability of the travel unit

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[NO.8]

 Heat-resistant wires (AEX) are

utilized not only for the electric circuit of the engine, but also for other machine circuits

 In addition, DT connectors are

used for their high resistance to water infiltration

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[NO.9]

 New hydraulic hose connectors of

O-ring face seal type are utilized

Since they are sealed with rings, they prevent oil leakage better than the conventional connectors of taper seal type

O- FFOR (Flat Face O- Ring) system

is ISO compliant for high pressure

 FFOR Class B selected by design

team to best retain o-rings at assy

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[NO.10]

 Improvement of hydraulic hoses between machine body and

work equipment

 The length of the hoses which need to be replaced periodically is

reduced by half to reduce the R&M cost

 In addition, the hoses are less bent at their adapters to increase

their durability

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 Improvement of hydraulic valve spools prevents erosion under

extreme boom loads

 Further dissipation of hi energy boom flows reduces total

flow-load per spool to give long life components

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COMFORT FEATURES [NO.1]

 The engine sound, swinging sound, and oil over relief sound

are lowered significantly During a demonstration you will see the ultra low noise design

Dampermounting

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 A 6,900 kcal (SAE) air conditioner is

utilized The bi level control function keeps the operator’s head and feet cool and warm respectively This improved air flow function keeps the inside of the cab comfortable

throughout the year

 Automatic HVAC features

self-diagnostics and error reporting

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 Both inside and fresh air filters are

easy to remove, clean, and install

The remote fresh air intake filter cover can be unlocked from inside of the cab

Inside air filter Fresh air intake filter

 The airtight cab is utilized to prevent entry of dust even in dusty

environment Since the air tightness of the cab is improved, the internal pressure is increased to 10 mm Aq (0.4 in Aq) when the air conditioner is operated (in the fresh-air-in mode) This internal

pressure prevents dust from entering the cab

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 A flanged floor mat is utilized so that

the inside of the cab can be washed with water Since the floor inclines gently toward the door of the cab, water is drained easily All water can

be drained off through the draining holes at the front part of the floor under the mat

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 The new cab is made with

pressed steel pillars which

have proper rigidity, and the

front blind angle is reduced by

about 25%

Ultra wide visibility is obtained

 The right side pillar is

eliminated to increase the right-side visibility

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EASY MAINTENANCE [NO.1]

EMMS (Equipment Management Monitoring System)

< Display of faults >

If the engine oil level, cooling

water level, etc is abnormal, it

is displayed on the LCD monitor

in the operator’s cab

< Function of checking machine

condition for faults >

The oil pressure, engine speed,

etc can be displayed on the

LCD monitor With this function,

the downtime can be

minimized

condition for faults

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EASY MAINTENANCE [NO.2]

Monitor informs replacement time of oil and filters on LCD when the

replacement interval is reached

Monitor stores maintenance

data, such as engine oil

replacement etc

Data Memory Function

Monitor stores abnormalities

for effective troubleshooting

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SAFETY

The alternator is moved to the

maintenance side

Full consideration has been given to the

situation if the front window should be

broken by rocks or stones

Safety glass with a splinter prevention film

is used for the front window to improve

both the strength and safety

 OPG II (Option) Shown

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ENVIRONMENT-FRIENDLY MACHINE

[NO.1]

Europe and Japan.

Tier 2 emission regulations

 The quantity of NOx and PM (Particulate) must be the following

values or below

PC1250-7’s discharge amount of NOx and PM are reduced by 35% and 63%compared with that of PC1100-6 respectively

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ENVIRONMENT-FRIENDLY MACHINE

[NO.2]

 The noise level around the machine

becomes highest at 15 m on the right side

of the machine The noise level of PC1250

at this point is 3 dB(A) lower than that of PC1100 (The sound energy is reduced by 50%.)

 If the low-noise sound absorbing duct for

Europe is installed, the noise level is lowered below 80 dB(A)

82.7

79.4

85.7 84.5

76.0 77.0 78.0 79.0 80.0 81.0 82.0 83.0 84.0 85.0 86.0 87.0

1

PC1250 PC1250(EU)

PC800

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INTERCHANGEABILITY [NO.1]

Interchangeability between PC1250-7 and PC1100-6

: Interchangeable : Not interchangeable

emission regulation Change in engine output.

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Capacity is increased (Engine power increased).

Commonality with the GALEO series.

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AVAILABLE VERSIONS [NO.1]

(comparison with standard version)

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AVAILABLE VERSIONS [NO.2]

(comparison with heavy-duty version)

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Created by: Komatsu America International Company Service Training Department PREV EXIT

END INTRODUCTION

SECTION

END INTRODUCTION

Tiêu đề	Training máy đào komatsu pc1250-7 - P6
Thể loại	Báo cáo kỹ thuật

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