Komatsu 170-3 Series, Руководство по ремонту, Страница: 127 / 454

12-3-3
170-3 SERIES
TESTING AND ADJUSTING
(11)
a
This STANDARD VALUE TABLE does not give the standard values for adjusting the engine output.
a
Do not use the values in this table to change the adjusting the ECVA or injector.
Engine SAA6D170E-P970
Model EGS1050-7
Cate-
gory
Item Measurement conditions Unit
Standard value
for new machine
Service limit
value
Pe
rfor-
m
anc
e
Engine speed
High idling
Low idling
rpm
rpm
Max. 1,575
800±100
Max. 1,575
800±100
Speed needed to start
0°C (without starting aid)
-20°C (with starting aid)
rpm
rpm
Min. 130
Min. 100
Min. 130
Min. 100
In
ta
ke,
ex
hau
st
sy
st
em
Intake resistance
Air supply pressure
Exhaust pressure
Exhaust temperature
Whole speed range
At rated output
At rated output
Whole speed range (20°C)
kPa{mmH
2
O}
kPa{mmHg}
kPa{mmHg}
°C
Max. 3
{Max. 300}
Min. 126.7
{Min.950}
Min. 106.7
{Min. 800}
Min. 690
7.5
{762}
113.3
{850}
96.0
{720}
750
Exhaust gas color
At sudden acceleration
(low idling
o
high idling)
At rated output
Bosch
index
—
Max. 1.0
Max. 0.8
—
2.0
2.0
Valve clearance
Intake valve
Exhaust valve
mm
mm
0.32
0.62
—
—
Engi
ne
pr
ope
r
Compression pressure
Oil temperature: 40 – 60°C
(engine speed:
210 – 250 rpm)
MPa{kg/cm 2 }
Min. 2.9
{Min. 30}
2.1
{21}
Blow-by pressure
At rated output
(water temperature:
Min. 70°C)
kPa{mmH
2
O}
Max. 6.4
{Max. 650}
9.8
{1,000}
Lu
br
ic
a
tio
n
sy
st
em
Oil pressure
(oil temperature:
Min. 80°C)
At rated output
SAE30 or SAE15W-40
SAE10W
At low idling
SAE30 or SAE15W-40
SAE10W
MPa{kg/cm
2
}
MPa{kg/cm 2 }
MPa{kg/cm
2
}
MPa{kg/cm 2 }
0.39 – 0.54
{4.0 – 5.5}
0.34 – 0.49
{3.5 – 5.0}
Min. 0.12
{Min. 1.2}
Min. 0.10
{Min. 1.0}
0.21
{2.1}
0.18
{1.8}
0.08
{0.8}
0.07
{0.7}
Oil temperature
Whole speed range
(inside oil pan)
°C 90 – 110 120
Oil consumption
Ratio to fuel consumption
at continuous rated output
% Max. 0.4 1.0
C
ool
ing
s
ys
tem
Radiator pressure valve
function
Cracking pressure
(differential pressure)
kPa{kg/cm
2
} 70{0.7} —
Fan speed At rated speed rpm 960±30 960±30
Fan belt tension
Deflection when pressed
with finger force of approx.
58.8 N {6 kg}
mm 3 3
Alternator belt tension
Deflection when pressed
with finger force of approx.
98 N {10 kg}
mm — —
STANDARD VALUE TABLE FOR TROUBLESHOOTING
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