Komatsu 170-3 Series, Руководство по ремонту, Страница: 139 / 454

170-3 SERIES
12-13
TESTING AND ADJUSTING
MEASURING OIL PRESSURE
1. Remove oil pressure measurement plug (1).
2. Install the nipple and hose
➀
of pressure test kit
A and connect the hose to pressure test kit A .
3. Start the engine and measure the oil pressure
when the engine is running at low idling and high
idling.
4. After completing the measurement, remove the
measuring equipment and set to the original con-
dition.
HANDLING EQUIPMENT IN
FUEL CIRCUIT
★
Precautions when carrying out inspection and
maintenance of fuel system.
With the HPI type fuel injection system, more
precise equipment is used than on the conven-
tional fuel injection pump and nozzle. Problems
may occur if dirt or dust get in, so always be
careful of the following points.
When carrying out inspection or maintenance of
the fuel line, pay more attention than usual to
prevent dirt or dust from getting in. If there is any
dirt stuck to any part, use clean fuel to wash it off
completely.
★
Precautions when replacing fuel filter cartridge
Always use a genuine Komatsu part for the fuel
filter cartridge.
With the HPI type fuel injection system, more
precise equipment is used than on the conven-
tional fuel injection pump and nozzle. Problems
may occur if dirt or dust get in, so a special filter
with highly efficient filtering performance is used.
For this reason, do not use imitation filters. If
they are used, there is danger of problems
occurring in the fuel line.
➄
MEASURING OIL PRESSURE,
HANDLING EQUIPMENT IN FUEL CIRCUIT
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