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[4] CHANGE OIL IN HYDRAULIC TANK
• Stop the engine and wait for the engine to cool down.
• Loosen the oil filler cap slowly to release the pressure inside the hydraulic tank, then remove the cap.
• Make full stroke operations of the travel lever and the damp control lever to release the remaining pressure
inside the hydraulic circuits totally.
• After adding oil, tighten the cap and drain plug securely, then wipe up any spilled oil.
• When changing the oil in the hydraulic tank, always replace the hydraulic line filter at the same time.
• Always replace the O-ring used inspection cover inside the hydraulic tank with a new O-ring.
Set a container under the hydraulic tank to catch the oil.
1. Remove the filler plug (2) on the hydraulic tank.
2. Turn drain plug (3) at the bottom of the hydraulic tank to counterclockwise
and drain the oil from the hydraulic tank.
Set the container under the hydraulic tank to catch the oil.
Be careful not to get oil on yourself.
3. Inspect the drained oil.
If there are large amounts of metal particles or dirt in the drained oil,
please contact your distributor.
4. After completely draining the oil, tighten drain plug (3).
5. Remove the 6 bolts, then remove the inspection cover (4).
6. Take out the oil strainer (5) inside the hydraulic tank, then wash it in diesel oil.
7. Install the oil strainer (5) inside the hydraulic tank, set new O-ring (6) to the
hydraulic tank, then install inspection cover (4) and tighten the bolts.
8. Fill with hydraulic oil through the oil filler.
For details of the hydraulic oil to use, see “3. USE OF FUEL, COOLANT,
AND LUBRICANT ACCORDING TO AMBIENT TEMPERATURE”.
Hydraulic oil refill amount: 70 liters (18.49 US gal, 15.40 UK gal)
Use a container with an attached hose when filling with oil.
9. Check that the oil level is between the top and bottom red lines on the level
gauge at the rear of the hydraulic tank. For details, see “7.5 CHECK
BEFORE STARTING [4]”.
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