Komatsu GD555-5 Operation & Maintenance Manual page 110

OPERATION
GEAR SHIFT LEVER
When leaving the operator's seat, be sure to return the gear shift lever to P
(PARKING) position.
Even after setting the gear shift lever to P (PARKING) position, keep the
brake pedal depressed until the parking brake pilot lamp lights up, to avoid
dangers.
Use this lever (7) to select the transmission speeds.
The transmission has 8 FORWARD and 4 REVERSE speeds, and
the gear is shifted simply by setting the gear shift lever to the
desired position.
By setting the gear shift lever to P (PARKING) position, the parking
brake is applied and the parking brake pilot lamp lights up.
NOTICE
Except in emergencies, do not set to P (PARKING) position to apply the brake during travels. The parking brake is possibly
damaged, causing serious accidents. Only after the machine stops, use the parking brake.
In case the parking brake was used as emergency brake during travels due to avoidable reasons, ask your Komatsu distributor
to check the abnormality in the parking brake.
REMARK
Set the gear shift lever to P (PARKING) position before starting the engine.
The gear shift pattern differs according to the position of the transmission mode selector switch. For details, see
the items in "TRANSMISSION MODE SELECTOR SWITCH (PAGE 3-39)".
To protect the transmission, the gear-speed skip preventive function is provided.
WARNING
EXPLANATION OF COMPONENTS
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