Komatsu ecot3 PC300LC-8 Shop Manual page 475

Hydraulic excavator
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30 Testing and adjusting
Check sheet (PC300/350-8)
Model
1.
Engine
Fuel
No.
Check item
control
dial
1
Engine speed
MAX
Engine oil
2
pressure
3
Engine speed
MIN
Engine oil
4
pressure
5
Engine speed
Blow-by
6
pressure
MAX
Engine oil
7
pressure
2.
Work equipment speed
Fuel
No.
Check item
control
dial
1
Boom RAISE
2
Arm IN
3
4
Arm OUT
5
MAX
6
Bucket CURL
7
Swing (5 turns)
8
Travel (5 turns)
PC300, 350-8
Serial No.
Service meter
Checking condition
Work-
Auto-
Left knob
ing
decel-
switch
mode
eration
OFF
OFF
P
ON
ON
OFF
Checking condition
Work-
ing
Checking posture, etc.
mode
No load, work equipment
extended fully
P
Boom top horizontal
E
L
Boom and arm top horizontal
Arm cylinder retracted fully
Work equipment extended fully
P
One side of track pushed up
User's name
Operation of
Unit
value for new
work
equipment
rpm
2,000 – 2,100 2,000 – 2,100
All levers in
MPa
0.34 – 0.59
neutral
2
{3.5 – 6.0}
{kg/cm
}
rpm
975 – 1,025
All levers in
MPa
neutral
2
{kg/cm
}
rpm
1,830 – 2,030 1,830 – 2,030
Arm IN relief
kPa
Max. 1.57
{mmH
O}
{Max. 160}
2
All levers in
rpm
1,300 – 1,500
neutral
Unit
PC300-8
PC350-8
PC300-8
PC350-8
PC300-8
PC350-8
PC300-8
PC350-8
PC300-8
PC350-8
sec
PC300-8
PC350-8
STD
LO
LC
STD
MI
LC
STD
HI
LC
SEN02663-02
Date of execution
/
/
Standard
Service limit
value
machine
0.21
{2.1}
975 – 1,025
Min. 0.15
0.08
{Min. 1.5}
{0.8}
Max. 2.55
{Max. 260}
Standard
Service limit
value for
value
new machine
3.3 – 4.1
Max. 4.5
3.4 – 4.2
Max. 4.6
2.6 – 3.2
Max. 3.5
2.9 – 3.5
Max. 3.7
3.4 – 4.2
Max. 4.5
3.4 – 4.2
Max. 4.5
3.6 – 4.6
Max. 4.9
3.5 – 4.5
Max. 4.8
4.4 – 5.4
Max. 5.7
4.4 – 5.4
Max. 5.7
2.9 – 3.5
Max. 3.8
2.9 – 3.5
Max. 3.8
28.7 – 34.5
Max. 38
44.0 – 66.0
42.0 – 70.0
46.5 – 69.5
45.0 – 74.5
33.5 – 44.5
31.5 – 48.5
35.5 – 47.5
34.0 – 51.5
30.0 – 34.0
28.0 – 39.0
32.0 – 36.0
32.0 – 41.5
Inspector
Mea-
sured
value
Mea-
sured
value
11

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Ecot3 pc300-8Ecot3 pc350lc-8Ecot3 pc350-8

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