Komatsu D61EX-24 Operation & Maintenance Manual page 41

PRECAUTIONS FOR MAINTENANCE
STOP ENGINE BEFORE CARRYING OUT INSPECTION AND MAINTENANCE
If you are caught or pinched between the work equipment during operation, or exposed to high-temperature or
high-pressure liquids, it is dangerous and may cause serious personal injury or death. Always observe the fol-
lowing.
• Lower the work equipment completely to the ground and
stop the engine before performing any inspection and
maintenance.
• Turn the starting switch to ON position, set work equip-
ment lock lever (2) to FREE position (F), operate the blade
control lever and the ripper control lever to RAISE and
LOWER position 2 to 3 times repeatedly to release the re-
maining pressure in the hydraulic circuit, then set parking
brake lever (1) and work equipment lock lever (2) to LOCK
position (L).
• Check that the battery relay is off and main power is not
conducted. (After turning the starting switch to OFF posi-
tion, wait for approximately 1 minute and press the horn
switch. If the horn does not sound, power is not conduct-
ed.)
• Block the tracks from movement.
2-28
SAFETY