Maintenance
-68-
5
1. Open the engine hood.
2. Remove the rear cover.
3. Have an appropriate oil drain pan.
4. Remove the filler cap.
5. Remove the drain plug to drain HST oil.
Changing - Models without charge-pump
• The HST system cannot be fully drained due
to its design.
• Do not operate the drive pedal or drive lever
with the HST oil drained. Doing so lets air
into the circuit, necessitating to bleed the
circuit.
NOTE
Drain Plug
5347M-0507-061E
6. Reinstall the drain plug.
7. Fill fresh oil to the level.
8. Reinstall the filler cap.
9. Reinstall the rear cover and close the engine hood.
10. Start the engine and run it for a while. Stop it and check the HST oil level.
11. Restart the engine and drive the machine back-and-forth from standstill several times.
12. Check the oil level. If it is low, fill.
13. Perform 10-12 until the oil level stabilizes.
14. Check if there is no oil leak.
15. After changing the HST oil, check the oil level every 10-30 minutes of use for a while
and fill as necessesary.
