Komatsu GD555-5 Operation & Maintenance Manual page 72

OPERATION
METER GROUP
PILOT DISPLAY
When starting switch is ON, the pilot display lights up when display items are functioning.
(1) Engine preheating pilot lamp
(2) Differential lock pilot lamp (if equipped)
(3) Turn signal pilot lamp
(4) Head lamp high beam pilot lamp
(5) Working lamp pilot lamp
(6) Blade float pilot lamp
ENGINE PREHEATING PILOT LAMP
This monitor (1) lights up when the engine preheating electrical
heater is actuated.
When the starting switch is turned to the ON position in cold areas,
this lamp lights up. It goes out after 5 - 45 seconds to inform the
operator that the preheating has been completed.
In addition, this monitor lights up when the starting switch is turned
to the HEAT position.
(7) Blade accumulator pilot lamp (if equipped)
(8) Lift arm lock pin pilot lamp
(9) RPM SET pilot lamp
(10) Economy operation display lamp
(11)
Cooling fan reverse rotation pilot lamp
(12) P mode pilot lamp
EXPLANATION OF COMPONENTS
3 - 19