Komatsu PC130-7, Shop Manual

Page: 8 / 342

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/cm 2 }
(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
{mmH
2
O}
Max. 0.49
{Max. 50}
0.98
{100}
Oil pressure
Coolant temperature:
Within operating range
MPa
{kg/cm 2 }
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