Segway AT5 S Owner's Manual page 104

Oil dipstick
1
6. After cleaning the oil dipstick, fully insert it again.
7. If the oil level is near or below the lower level mark, remove
the seat. Remove the oil fill cap from the front right crankcase
cover and add the specified oil into the fill cap hole up to the
upper level mark on the dipstick.
8. Reinstall the oil fill cap and oil dipstick.
9. Install the tank cover assembly.
10. Install the seat.
Hot oil may burn the skin. Do not let the oil contact skin.
MAINTENANCE, STORAGE AND TRANSPORTATION
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Upper level
2
NOTICE
Lower level
3
97
2
3