Komatsu PC200-8M0 Shop Manual page 396

SEN06127-00
3. Measurement of LS-EPC valve output pres-
sure
1) Open the side cover of the pump room
and remove oil pressure pickup plug (7).
2) Install nipple M3 and connect them to oil
pressure gauge [2].
a Use the oil pressure gauge of 6 MPa
{60 kg/cm
3) Start the engine.
4) Run the engine at high idle, operate the
travel speed selector switch and travel
lever, and measure the output pressure in
each case.
a Measuring condition and method of
judgment: If the output pressures are
the following value, the LS-EPC valve
is normal.
Travel Operation of
speed
Travel lever
Lo
in neutral
Travel lever
Hi operated a
little (Note)
Note: Move the travel lever to a degree
that the PPC oil pressure switch is
turned ON (before the track starts
moving).
44
30-101
2
}.
Output pressure
lever
Approx. 2.9 MPa
{Approx. 30 kg/cm
0 MPa
2
{0 kg/cm }
Testing and adjusting oil pressure in pump LS control cir-
5) After finishing measurement, remove the
measuring tools and return the removed
parts.
2
}
101 Testing and adjusting, Part 1
PC200, 200LC, 220, 220LC-8M0