Takeuchi TL150, Руководство по ремонту

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V-8
TROUBLESHOOTING
OVERALL MACHINE
1. Inspect the hydraulic oil level.
“III. Machine Configuration, Hydraulic
Tank”
2. Hydraulic pump is emitting an unusual level
of noise.
The cause of the problem is probably a fault in
the suction line which has caused the pump to
dry out. Check according to the following pro-
cedure.
a. Check the lines sucking the hydraulic oil.
• Apply grease or oil to the area which seems
to be the cause of the problem and watch
to see what happens. (Check to see if air is
being drawn into the system.)
b. Check to see if the suction strainer is
clogged.
3. Inspect the line filter.
Remove the case, take out the filter element and
check to see if the filter is clogged.
4. Inspect the control valve (sub).
“V-6”
5. Hydraulic pump at fault.
When the inside of the pump is excessively
worn or has been damaged, the possibility exists
that metal filings will work their way into the
hydraulic oil. If this is the case, take the follow-
ing action:
• Replace the line filter and spin filter element.
• Replace or flush the hydraulic oil (any oil of
NAS Grade 9 or above may be used).
• When replacing the hydraulic oil, always be
sure to clean the inside of the hydraulic tank
and the suction strainer.
“III. Machine Configuration, Hydraulic
Tank”
If the pump seal has been damaged, replace it.
“IV. Hydraulic Units, Hydraulic Pump”