69
n Hydraulic Oil Check
with Hydraulic Breakers
The hydraulic oil change after 1000 operating
hours in the operator's manual is based on
normal excavator work. Following inspection
measures are valid when hydraulic breakers
are used:
1. Changing and filling up of hydraulic oil
1) The hydraulic oil must be changed
more often when breakers are used
because the machine is subject to
harder conditions than at normal
excavating work.
2) Use only the recommended oils
mentioned in the operator's manual
when changing or fill oil.
3) When filling up oil, do not mix oils of
different makes.
2. Changing the return filter and oil
1) The filter must be changed more
often because of contamination
resulting from the frequent assembly
and disassembly of the hoses.
2) Use the correct replacement filter.
3) Oil change according to operating
hours.
EVERY 1000 SERVICE HOURS OR
ONCE A YEAR
n Replacing Air Filter Element
Open the engine bonnet and remove the
dust-cover.
Remove and replace the outer element and
inner element with new elements.
When reassembling, install the dust-cover
so that its TOP mark (arrow) faces up-wards.
(1) Outer element
(2) Inner element
(3) Dust-cover
(4) Clamps
IMPORTANT:
l Shorten the replacement period if the
machine is used in dusty or sandy areas.
EVERY 1500 SERVICE HOURS
n Checking Fuel Injection Nozzle
(Injection Pressure)
Consult your local KUBOTA dealer for this
service.
EVERY 2000 SERVICE HOURS
Do all 50, 200, 250, 500 and 1000 hour
servicing at the same time.
n Chang Front Idler and Track Roller
Oil
Consult your local KUBOTA dealer for this
service.
Normal
excavator work
Hydraulic oil Return Filter
Breaker
work
portion
20%
40%
60%
every 800 Hrs.
every 400 Hrs.
every 300 Hrs.
more
every 200 Hrs.
every 200 Hrs.
every 100 Hrs.
every
1000 Hrs.
every 500 Hrs.
(250Hrs. after
first operation)
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