Komatsu H75051 Operation & Maintenance Manual page 159

OPERATION
(3) Engine shutdown secondary switch
(4) Speed range selector switch
(5) Hazard lamp switch
(6) Horn switch
(7) Lamp switch
(7) Turn signal lever
(7) Dimmer switch
(8) Parking brake switch
(9) Rearview monitor brightness adjustment switch
(10) Cigarette lighter
(11) Starting switch
(12) Front wiper switch
(13) Rear wiper switch
(14) Monitor brightness selector switch
(15) Beacon lamp switch (if equipped)
(16) Rear working lamp switch
(17) Room lamp switch
STARTING SWITCH
Starting switch is used to start or stop the engine.
(A): OFF position
The key can be removed from the starting switch, the electrical
current to the electrical system is cut, and the engine stops. In
addition, the parking brake is applied automatically.
(B): ON position
Electric current flows through the charging and lamp circuits.
Keep the switch at this position while the engine is running.
When the ambient temperature is low during engine startup,
the engine preheating pilot lamp lights up and engine preheat-
ing starts automatically.
This preheating time depends on the ambient temperature during engine startup.
When the engine preheating pilot lamp lights up, wait for a while. When it goes out, then turn the starting key to
the START position.
(C): START position
This is the position to start the engine. Hold the key at this position while cranking the engine. Release your
hand off the key immediately after the engine has been started. The key returns to ON position (B).
(D): Manual preheat position
In cold weather, you can increase the engine preheating time longer than the automatic preheating time. To in-
crease it, turn the starting switch key to this position.
When you release your hand, the switch returns to position (A). Immediately turn the key to position (C) and
start the engine.
EXPLANATION OF COMPONENTS
(18) Rear heated wire glass switch
(19) Emergency HST pump drive switch
(20) Max. traction switch
(21) PCS (Proportional Control Switch)
(22) Directional selector switch
(23) Work equipment lock switch
(24) Travel speed control dial
(25) Traction control switch
(26) Directional selector switch actuation switch
(27) Attachment selector switch (if equipped)
(28) Remote positioner switch
(29) 2-stage low idle switch
(30) Quick coupler (if equipped)
(For details of Quick coupler,
see HANDLE HYDRAULIC TYPE QUICK COUPLER
in Chapter ATTACHMENTS AND OPTIONS)
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