2.
Remove the bolts (1) (4 pieces), and open hydraulic tank
top cover (2).
3.
Remove the cap of oil filler port (F) gradually to release the
internal pressure.
4.
Remove the cap of oil filler port (F).
5.
Loosen the bolts (3) (3 pieces) and remove cover (4).
Cover (4) may jump out under the force of spring (5), so
hold cover (4) down when removing the bolts.
6.
After removing the spring (5) and valve (6), take out ele-
ment (7).
7.
Clean the removed parts by using cleaning oil.
8.
Install the new element in the place where old element (7)
was installed.
9.
Check the O-ring to be set between the hydraulic tank and
cover (4).
If the O-ring is damaged, replace it.
10.
Place the valve (6) and spring (5) onto the element.
11.
Install the cover (4) with the bolts (3) (3 pieces) while pressing it with the hand.
12.
Install the cap of oil filler port (F).
13.
Close the hydraulic tank top cover, and install the bolts (1) (4 pieces).
14.
Start the engine and run it at low idle for 10 minutes to bleed air. For details, see “METHOD FOR START-
ING ENGINE (3-153)”.
15.
Stop the engine.
REMARK
Leave the engine stopped for at least 5 minutes, and then start it. This will remove the air bubbles in the oil
inside the tank.
16.
Check that there is no leakage of oil and wipe off any oil that is spilled.
METHOD FOR CHANGE OIL IN SWING MACHINERY CASE
Immediately after the engine is stopped, its parts and oil are still very hot, and may cause burn injury.
Wait for the temperature to go down, and then start the work.
Refill capacity: 2.5 ℓ
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