Kubota KX040-4, Operator'S Manual

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81 REGULAR CHECKS AND MAINTENANCE WORK
4. Retighten the drain plug.
5. Fill oil through the oil filling opening on the top side of
the tank.
6. Let the engine run and operate the boom, arm, bucket
and boom swing device. Then bring the boom to the
highest position, pull the arm, bucket inward and boom
swing left end.
7. Fill oil again up to the center of the gauge.
8. Install the hydraulic tank cover and tighten the oil filling
plug.
B
Hydraulic Oil Check with Hydraulic
Hammers
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
hammers are used:
1. Changing and filling up of hydraulic oil
(1) The hydraulic oil must be changed more often
when hammers are used because the machine is
subject to harder conditions than normal
excavating work.
(2) Use only the recommended oils mentioned in the
operator's manual when changing or filling with
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.
(1) Oil filling plug
(2) Suction filter
(3) Drain plug
Hydraulic
oil volumes
Hydraulic tank 42 L (11.1 US gal)
Whole oil volumes 67 L (17.7 US gal)
Hydraulic
oil
Return
filter
Suction
Filter
Normal
excavator work every 1000
Hrs.
every 1000
Hrs.
(250 Hrs.
after first
operation)
every 1000
Hrs.
Hammer
work
portion
20%
every 800
Hrs.
every 800
Hrs.
40%
every 400
Hrs.
every 400
Hrs.
60%
every 300
Hrs.
every 300
Hrs.
more
every 200
Hrs.
every 200
Hrs.