Komatsu ecot3 PC300-8, Shop Manual

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SEN02624-03 20 Standard value table
2
PC300, 350-8
Standard value table for engine related parts 1
Applicable model
PC300, 300LC-8
PC350, 350LC-8
Engine SAA6D114E-3
Cate-
gory
Item Measurement condition Unit
Standard value
for new machine
Judgement
criteria
Engi
ne
Engine speed
• Coolant temperature:
operating range
High idle rpm 2,050 ± 50 2,050 ± 50
Low idle rpm 1,000 ± 25 1,000 ± 25
Rated speed rpm 1,950 1,950
Intake pressure
(boost pressure)
• Coolant temperature:
operating range
• Arm IN Power
Max.
Inlet of
aftercooler
kPa
{mmHg}
147 – 187
{1,100 – 1,400}
120
{900}
Outlet of
aftercooler 135 – 175
{1,010 – 1,310}
100
{750}
Exhaust gas color
• Coolant temperature:
operating range
At sudden
acceleration
% Max. 25 Max. 35
At high idle % Max. 1.0 Max. 2.0
Valve clearance • Normal temperature
Intake valve mm 0.305 0.152 – 0.559
Exhaust valve mm 0.559 0.381 – 0.813
Compression pres-
sure • Oil temperature: 40 – 60°C
• Engine speed: Min. 170 rpm
MPa
{kg/cm
2
}
Min. 2.6
{Min. 26.5}
2.1
{21.4}
Blow-by pressure
• Coolant temperature: operating range
• Arm IN power max. kPa
{mmH
2
O}
1.96
{200}
2.94
{300}
Oil pressure
• SAE0W30E0S,
SAE5W40E0S,
SAE10W30DH,
SAE15W40DH,
SAE30DH engine oil
• Coolant temperature:
operating range
High idle
kPa
{kg/cm
2
}
0.34 – 0.59
{3.5 – 6.0}
0.21
{2.1}
Low idle
kPa
{kg/cm
2
}
Min. 0.15
{Min. 1.5}
0.08
{0.8}
Oil temperature • Whole speed range (inside oil pan) °C 80 – 110 120
Fan belt tension
• Between fan pulley and alternator pulley
• Deflection when pressed with finger force
of approx. 98 N {10 kg}
mm Auto-tensioner Auto-tensioner
Air conditioner com-
pressor belt tension
• Between fan pulley and compressor
pulley
• Deflection when pressed with finger force
of approx. 58.8 N {6 kg}
mm 6 – 9 6 – 9