Komatsu D37EX-24 Operation & Maintenance Manual page 205

OPERATION
2.
Check that parking brake lever (1) is in LOCK position (L).
If parking brake lever (1) is not in LOCK position (L), the
engine cannot be started.
3.
Check that joystick (steering, directional and gear shift lev-
er) (2) is in NEUTRAL position (N).
The engine cannot be started if joystick (steering, direc-
tional and gear shift lever) (2) is not in NEUTRAL position
(N).
If joystick (steering, directional and gear shift lever) (2) is in
F or R, the letter "P" on speed range display will flash.
4.
Lower the blade to the ground.
For blade operation, see "BLADE CONTROL LEVER
(3-87)".
5.
Check that blade control lever (3) is in HOLD position (b).
6.
Check that work equipment lock lever (4) is in LOCK posi-
tion (L).
If work equipment lock lever (4) is not in LOCK position
(L), the engine cannot be started.
MACHINE OPERATIONS AND CONTROLS
3-147