Komatsu PC200-8M0 Shop Manual page 408

SEN06127-00
3. Measuring oil leakage from bucket cylinder
1) Move the bucket cylinder to the CURL
stroke end and stop the engine.
k
Release the residual pressure from
the piping on the bucket cylinder
head side. For details, see Releas-
ing residual pressure from hydrau-
lic circuit (Operate the lever in the
bucket CURL direction only, how-
ever).
2) Disconnect hose (3) on the cylinder head
side and block the hose side with a flange.
k
Take care not to disconnect the
hose on the cylinder bottom side.
a Use the following part to block the
hose side.
07379-00640 (Flange #06)
3) Run the engine at high idle and relieve the
bucket circuit by curling the bucket.
k
Take care not to "dump the bucket".
4) Start measuring the oil leakage 30 sec-
onds after relieving is started and mea-
sure for 1 minute.
5) After finishing measurement, return the
removed parts.
56
30-101
101 Testing and adjusting, Part 1
4. Measuring oil leakage from swing motor
1) Disconnect 2 drain hoses (4) and block
the hose side with plugs.
a Use the following part to block the
hose side.
07376-70522 (Plug #05)
2) Turn the swing lock switch ON.
3) Run the engine at high idle and relieve the
swing circuit by swinging.
a Start measuring the oil leakage 30
seconds after relieving is started and
measure for 1 minute.
a After measuring 1 time, swing 180°,
and then measure again.
4) After finishing measurement, return the
removed parts.
PC200, 200LC, 220, 220LC-8M0
Testing oil leakage