Komatsu PC130-7 Guida all'installazione

00-1

MACHINE MODEL SERIAL NUMBER

PC130-7 70001 and up

• This shop manual may contain attachiments and optional equipment that are not available in your

area. Please consult your local Komatsu distributor for those items you may require.

Materials and specifications are subject to change without notice.

• PC130-7 mounts the SAA4D95LE-3 engine.

For details of the engine, see the 95-3 Series Engine Shop Manual.

SEBM036301

Printed in Japan 04-04(02) (1)

00-2 PC130-7

CONTENTS

No. of page

01 GENERAL ................................................................................................................01-1

10 STRUCTURE AND FUNCTION.................................................................10-1

20 TESTING AND ADJUSTING.......................................................................20-1

30 DISASSEMBLY AND ASSEMBLY.............................To be issued next time

40 MAINTENANCE STANDARD......................................................................40-1

90 OTHERS ....................................................................................................................90-1

(1)

PC130-7 00-2-1

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PC130-7 20-1

Note the following when making judgements using the standard value tables for testing, adjusting, or trou-

bleshooting.

1. The standard value for a new machine given in the table is the value used when shipping the machine from

the factory and is given for reference. It is used as a guideline for judging the progress of wear after the

machine has been operated, and as a reference value when carrying out repairs.

2. The service limit value given in the tables is the estimated value for the shipped machine based on the

results of various tests. It is used for reference together with the state of repair and the history of operation

to judge if there is a failure.

3. These standard values are not the standards used in dealing with claims.

When carrying out testing, adjusting, or troubleshooting, park the machine on level ground, inset the safety

pins, and use blocks to prevent the machine from moving.

When carrying out work together with other workers, always use signals and do not let unauthorized people

near the machine.

When checking the water level, always wait for the water to cool down. If the radiator cap is removed when

the water is still hot, the water will spurt out and cause burns.

Be careful not to get caught in the fan, fan belt or other rotating parts.

20 TESTING AND ADJUSTING

(1)

STANDARD VALUE TABLE FOR ENGINE.......... 20- 2

STANDARD VALUE TABLE FOR CHASSIS........20- 3

TESTING AND ADJUSTING................................ 20-101

TROUBLESHOOTING......................................... 20-201

20-2 PC130-7

TESTING AND ADJUSTING

STANDARD VALUE TABLE FOR ENGINE

Model name PC130-7

Engine SAA4D95LE-3

Item Measurement condition Unit Standard value Permissible value

High idling

rpm

2,350 ± 100 2,350 ± 100

Engine speed Low idling 1,100 ± 50 1,100 ± 50

Rated speed 2,200 —

Exhaust gas color During sharp acceleration Bosch

index Max. 4.5 Max. 6.5

During high idling Max. 1.0 Max. 2.0

Valve clearance

(Cooled) Intake valve mm 0.35 —

Exhaust valve 0.50 —

Compression pressure Oil temperature: 40 – 60 °C

(Engine speed) MPa

{kg/cm2}

(rpm)

Min. 2.9

{Min. 30}

(320 – 360)

2.0

{20}

(320 – 360)

Blow-by pressure Coolant temperature:

Within operating range

At rated output kPa

{mmH2O} Max. 0.49

{Max. 50} 0.98

{100}

Oil pressure

Coolant temperature:

Within operating range

MPa

{kg/cm2}

At high idling (SAE30) 0.34 – 0.59

{3.5 – 6.0} 0.25

{2.5}

At high idling (SAE10W) 0.29 – 0.54

{3.0 – 5.5} 0.21

{2.1}

At low idling (SAE30) Min. 0.1

{Min. 1.0} 0.07

{0.7}

At high idling (SAE10W) Min. 0.08

{Min. 0.8} 0.07

{0.7}

Oil temperature Through speed range (In oil pan) °C 90 – 110 120

Fuel injection timing Before top dead center (BTDC) ° 6 ± 0.75 6 ± 0.75

Fan belt tension Deflection under finger pressure of

58.8 N {6 kg} mm 6 – 10 6 – 10

Air conditioner compres-

sor belt tension Deflection under finger pressure of

58.8 N {6 kg} mm 6 – 10 6 – 10

(1)

STANDARD VALUE TABLE FOR ENGINE

PC130-7 20-3

TESTING AND ADJUSTING

STANDARD VALUE TABLE FOR CHASSIS

Model name PC130-7

Cate-

gory Item Measurement condition Unit Standard value Permissible value

Engine speed

Pump relief

• Engine coolant temperature:

Within operating range

• Hydraulic oil temperature: 45 – 55 °C

• Engine speed: High idling

• Working mode: A

• Arm OUT relief

rpm 2,120 ± 100 2,120 ± 100

Pump relief + One-

touch power maximiz-

ing

• Engine coolant temperature:

Within operating range

• Hydraulic oil temperature: 45 – 55 °C

• Engine speed: High idling

• Arm OUT relief + One-touch power

maximizing switch ON

rpm 2,180 ± 100 2,180 ± 100

During auto-decelera-

tion • Engine speed: High idling

• Auto-decelerator switch: ON

• All control levers in neutral rpm 1,400 ± 100 1,400 ± 100

Control valve spool stroke

Boom control valve • Engine: Stopped

8.0 ± 0.5 8.0 ± 0.5

Arm control valve IN 9.5 ± 0.5 9.5 ± 0.5

OUT 8.0 ± 0.5 8.0 ± 0.5

Bucket control valve 8.0 ± 0.5 8.0 ± 0.5

Swing control valve 8.0 ± 0.5 8.0 ± 0.5

Travel control valve 8.0 ± 0.5 8.0 ± 0.5

Control lever stroke

Boom control lever • Engine: Stopped

• Center of lever grip

• Read max. value to stroke end

(Exclude play in neutral position).

85 ± 10 85 ± 10

Arm control lever 85 ± 10 85 ± 10

Bucket control lever 85 ± 10 85 ± 10

Swing control lever 85 ± 10 85 ± 10

Travel control lever 112 ± 15 112 ± 15

Play of control lever 10 ± 15 10 ± 15

Operating effort of control lever

Boom control lever • Hydraulic oil temperature:

Within operating range

• Engine speed: High idling

• Center of lever grip

• Tip of pedal

• Read max. value to stroke end N

{kg}

15.7 ± 3.9

{1.6 ± 0.4} Max. 24.5

{Max. 2.5}

Arm control lever 15.7 ± 3.9

{1.6 ± 0.4} Max. 24.5

{Max. 2.5}

Bucket control lever 12.7 ± 2.9

{1.3 ± 0.3} Max. 21.6

{Max. 2.2}

Swing control lever 12.7 ± 2.9

{1.3 ± 0.3} Max. 21.6

{Max. 2.2}

Travel control lever 24.5 ± 5.9

{2.5 ± 0.6} Max. 39.2

{Max. 4.0}

Travel control pedal 80.4 ± 20.1

{8.2 ± 2.0} Max. 107.9

{Max. 11}

(1)

STANDARD VALUE TABLE FOR CHASSIS

20-4 PC130-7

TESTING AND ADJUSTING

Model name PC130-7

Cate-

gory Item Measurement condition Unit Standard value Permissible value

Oil pressure

Unload pressure

• Hydraulic oil temperature: 45 – 55 °C

• Engine speed: High idling

• Working mode: A

• Pump outlet pressure when all levers

are in neutral

MPa

{kg/cm

}

2.9 ± 0.5

{30 ± 5} 2.9 ± 0.5

{30 ± 5}

Boom relief pressure

• Hydraulic oil tempera-

ture: 45 – 55 °C

• Engine speed:

High idling

• Working mode: A

• Pump outlet pressure

when measured circuit is

relieved

At normal

relief

MPa

{kg/cm

}

31.9

{325 } 33.3 – 36.8

{340 – 375}

At power

max. 34.8 ± 1.0

{355 ± 10} 36.3 – 39.2

{370 – 400}

Arm relief pressure

At normal

relief 31.9

{325 } 33.3 – 36.8

{340 – 375}

At power

max. 34.8 ± 1.0

{355 ± 10} 36.3 – 39.2

{370 – 400}

Bucket relief pressure

At normal

relief 31.9

{325 } 33.3 – 36.8

{340 – 375}

At power

max. 34.8 ± 1.0

{355 ± 10} 36.3 – 39.2

{370 – 400}

Swing relief pressure 28.9 ± 1.5

{295 ± 15} 28.9 – 32.9

{295– 335}

Travel relief pressure 34.8 ± 1.0

{355 ± 10} 36.3 – 39.2

{370 – 400}

Control circuit basic

pressure

• Hydraulic oil temperature: 45 – 55 °C

• Engine speed: High idling

• Outlet pressure of self-reducing pres-

sure valve when all levers are in neu-

tral

MPa

{kg/cm

}

3.23 ± 0.2

{33 ± 2} 2.84 – 3.43

{29 – 35}

LS differential pres-

sure

• Hydraulic oil temperature:

45 – 55 °C

• Engine speed: High idling

• Working mode: A

• Pump pressure - LS pres-

sure

When all

levers are

in neutral MPa

{kg/cm

}

2.7

{28 } 2.7

{28 }

When

travel sys-

tem runs

idle at Hi

2.2 ± 0.1

{22.5 ± 1} 2.2 ± 0.1

{22.5 ± 1}

+2.0

+20

+2.0

+20

+2.0

+20

+1.0

–0.7

+10

– 7

+1.0

–0.7

+10

– 7

(1)

STANDARD VALUE TABLE FOR CHASSIS

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