IHI 9VX3, Service Manual

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OPERATION
9VX3
AFTER STARTING THE ENGINE
Keep engine speed low until the engine oil
pressure warning lamp goes out. If does not go
out within
1 0
seconds, stop the engine and
investigate the cause before starting the engine.
Failure to do so, can cause engine damage.
With any piece of hydraulically operated equipment,
it is
EXTREMELY IMPORTANT
that the hydraulic
fluid be thoroughly warmed fluid-up BEFORE any
work is begun. A warm-up period is time well spent
in preventive maintenance.
Practice the following warm-up procedure before
attempting full load operations.
1. Allow the engine to warm up at
LOW IDLE
for
at least five minutes.
Engage and disengage attachment control
levers to help speed warm-up of hydraulic
components.
Run the engine for about five minutes while
intermittently holding the bucket control lever in
the bucket dump position.
Operate the bucket control lever for 10 to 15
seconds and then return the control lever
HOLD
position to ten seconds.
3. Move the engine throttle lever to maximum
engine speed. Run the engine for an additional
five minutes while intermittently holding the
bucket dump position.
This will allow the oil to reach relief pressure,
which causes it to warm more rapidly.
Cycle all controls to allow warm oil to circulate
through all cylinders and lines.
4. Observe the OK warning monitor frequently
during the operation.
Be sure to perform the pro-operation warm-up
procedure whenever the hydraulic oil
temperature is lower than 20°C at start-up.
2. To warm up the hydraulic oil, move the engine
throttle lever to medium engine speed.
“BREAK-IN” OPERATION
In case of the new machine, as the severe operation
from the beginning will have a bad influence upon
the machine life, perform the enough break-in
operation as described the right table.
Hour meter Load
Up to 10 hours About 60% load
Up to 50 hours About 80% load
After 50 hours Full load
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