Komatsu PC200-8M0 Shop Manual page 377

101 Testing and adjusting, Part 1
Testing fuel discharge, return and leak amount
2) Insert connector G6 on the drain side of
the hose, and install cap nut [2] of tester
kit G1 to prevent fuel from flowing out.
3) Connect test hose G7 on the pressure lim-
iter side.
a Arrange the hose run so that slack be
eliminated from the test hose. Put the
hose's top end in the oil receiving
container.
4) Start the engine. By using measuring cyl-
inder G4, measure the leakage for 1 min-
ute with the engine speed at low idling.
a If the leakage from the pressure lim-
iter is within the following standard
value, it is normal.
At low idle
5) Remove the tool used after measurement.
Be sure to restore the machine.
3
Joint bolt:
PC200, 200LC, 220, 220LC-8M0
0 cc
(No leakage)
24 ± 4 Nm {2.4 ± 0.4 kgm}
4. Measuring return rate from injector
1) Open the right engine side cover. Remove
joint bolt (1) from the supply pump (4).
Disconnect return hoses (2) and (3).
2) Disconnect the return hose (2) at quick
coupler (a).
3) To prevent the fuel from flowing out, install
joint bolt [1], cap nut [2] and seal washer
[3] of tester kit G1 on the drain side of
return hose (2).
4) Connect return hose (3) to supply pump
(4).
3
Joint bolt:
19.6 to 29.4 Nm {2.0 to 3.0 kgm}
5) Connect hose G7 to return hose (2-1).
6) Install connector G6 to return hose (2),
and connect test hose G8.
a Arrange the hose run so that slack be
eliminated from the test hose. Put the
hose's top end in the oil receiving
container.
SEN06127-00
25
30-101