Komatsu ecot3 WA430-6 Operation & Maintenance Manual page 259

SERVICE PROCEDURE
CHECK TRANSMISSION OIL LEVEL, ADD OIL
The parts and oil are at high temperature immediately after the engine is stopped, and may cause burns. Wait for the temperature
to go down before starting the work.
Carry out this procedure if there is any sign of oil on the transmission case, or if there is oil mixed with the cooling
water.
1. Start the engine and run it for at least 5 minutes.
2. Open the cap of oil filler port (F), remove dipstick (G), and wipe
the oil off with a cloth.
3. Fully insert dipstick (G) into filler pipe, then remove it.
4. The oil level should be between the H and L marks on dipstick
(G).
If the oil level is below the L mark, add oil through oil filler port
(F).
5. If the oil is above the H mark, drain the excess oil from drain
plug (P), and check the oil level again.
6. If the oil level is correct, insert dipstick (G) in the dipstick guide,
then tighten the cap.
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WARNING
MAINTENANCE