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9

8

Easy Maintenance

Large Capacity Air Cleaner

Large capacity air cleaner is 

comparable to that of larger machines.

The larger air cleaner can extend air

cleaner life during long-term operation

and prevents early clogging and

resulting

power

decrease.

Reliability is

improved by a

new seal

design.

Long Work Equipment Greasing

Interval (optional)

High quality BMRC bushings and resin

shims are optionally available for work

equipment pins excluding bucket,

extending greasing interval to 500 hours.

Large Fuel Tank Capacity

Large fuel tank capacity extends 

operating hours before refueling. Fuel

tank is treated for rust prevention and

improved corrosion resistance.

High Pressure In-line Filter

In-line filters are provided at outlet port

(pressure side) of each pump to 

protect hydraulic system contamination.

HYDRAULIC EXCAVATOR

PC400

-8

0

In-line filters

H

Y D R A U L I C  

E

X C A V A T O R

PC400

-8

Long-life Oil, Filter

Uses high-performance

filtering materials and

long-life oil. Extends the

oil and filter replacement

interval.

Engine oil & 
Engine oil filter

every  

500

hours

Hydraulic oil

every  

5000

hours

Hydraulic oil filter

every 

1000

hours

Hydraulic oil filter
(Eco-white element)

Easy Access to Engine Oil Filter

and Fuel Drain Valve

Engine oil dipstick and fill, and fuel 

filter are mounted on same side to

improve accessibility. Fuel drain valve

are remotely mounted to improve

accessibility.

Fuel Drain Valve

Equipped with

Fuel Pre-filter

(with Water Separator)

Removes water and

contaminants in the

fuel to prevent fuel

problems.

Easy Radiator Cleaning

Since radiator and oil cooler

are arranged side-by-side, it

is easy to clean, remove

and install them.

Large LCD Color Monitor

Working Mode

Application

Advantage

Power mode

Maximum production/power

P

Fast cycle time

E

Economy mode

Excellent fuel economy

L

Lifting mode

Hydraulic pressure is
increased by 7%

B

Breaker

Optimum engine rpm,

operation

hydraulic flow

ATT

Attachment

Optimum engine rpm,

mode

hydraulic flow, 2 way

Mode Selection

The multi-function color monitor has Power mode, Economy

mode, Lifting mode, Breaker mode and Attachment mode.

Lifting Mode

When the Lifting mode is selected, lifting capacity is

increased 7% by raising hydraulic pressure.

6

7

8

1

2

3

4

5

1

2

3

4

5

6

Hydraulic oil temperature gauge

Fuel gauge

Eco-gauge

Function switches menu

Auto-decelerator

Working mode 

Travel speed

Engine water 
temperature gauge

Auto-decelerator

Working mode selector

Traveling selector

Buzzer cancel

Wiper

Windshield washer

Indicators

Basic operation switches

Basic 
operation
switches

Air conditioner
operation
switches

Function 
switches

8

1

2

3

4

5

6

7

5

6

1

2

3

4

Large Multi-lingual LCD Monitor 

A large user-friendly color monitor

enables safe, accurate and smooth work.

Improved screen visibility is achieved by

the use of TFT liquid crystal display that

can easily be read at various angles and

lighting conditions. Simple and easy to

operate switches. Function keys facilitate

multi-function operations. 

Displays data in 12 languages to globally

support operators around the world.

EMMS

(Equipment Management Monitoring System)

Monitor Function

Controller monitors engine oil

level, coolant temperature, bat-

tery charge and air clogging,

etc. If controller finds any

abnormality, it is displayed on

the LCD.

Maintenance Function

Monitor informs replacement

time of oil and filters on LCD

when the replacement interval

is reached.

Trouble Data Memory

Function

Monitor stores abnormalities for

effective troubleshooting.

M

AINTENANCE 

F

EATURES

Photo may include optional equipment.

Summary of Contents for PC400-8

Page 1: ...lection system Air conditioner with defroster hot cool box Alternator 60 ampere 24 V Arms 2400 mm 7 10 arm assembly 2900 mm 9 6 arm assembly 3380 mm 11 1 arm assembly 4000 mm 13 1 arm assembly 4800 mm...

Page 2: ...increases the digging force 7 Two mode Setting for Boom Switch selection allows either powerful digging or smooth boom operation See page 5 Productivity Features WALK AROUND H Y D R A U L I C E X C A...

Page 3: ...Komatsu Technology and adding customer feedback Komatsu is achieving great advancements in technology To achieve both high levels of productivity and economical performance Komatsu has developed the...

Page 4: ...s seat with reclining backrest The seat height and longitudinal incli nation are easily adjusted using a pull up lever You can set the appropriate operational posture of armrest together with the cons...

Page 5: ...lor Monitor Working Mode Application Advantage Power mode Maximum production power P Fast cycle time E Economy mode Excellent fuel economy L Lifting mode Hydraulic pressure is increased by 7 B Breaker...

Page 6: ...arm SAE heaped 1 9 m3 2 49 yd3 bucket rated capacity of lubricants coolant full fuel tank operator and standard equipment PC400 8 PC400LC 8 Operating Ground Operating Ground Shoes Weight Pressure Wei...

Page 7: ...50 kg 9050 kg 6100 kg 10150 kg 8500 kg 19 15 000 lb 11 600 lb 20 000 lb 13 400 lb 22 400 lb 18 700 lb 4 5m 7000 kg 4700 kg 8850 kg 5900 kg 11200 kg 8100 kg 13450 kg 11750 kg 14 15 400 lb 10 300 lb 19...

Page 8: ...m 10550 kg 7950 kg 9350 kg 7300 kg 13300 kg 10250 kg 16700 kg 16150 kg 19650 kg 19650 kg 14 23 200 lb 17 600 lb 20 600 lg 16 100 lg 29 300 lb 22 600 lb 36 800 lb 35 600 lb 43 400 lb 43 400 lb PC400LC...

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