After Starting Engine - Komatsu ecot3 Operation And Maintenance Manual

MACHINE OPERATIONS AND CONTROLS

AFTER STARTING ENGINE

To stop the engine in emergencies or when the actuation of the engine
is abnormal or there is any other trouble, turn the key in the starting
switch to OFF position.
Do not carry out operations or operate the levers or pedal suddenly
while the hydraulic oil is at low temperature. Always carry out the
warm-up operation for the hydraulic equipment until the hydraulic oil
temperature monitor displays the correct temperature.
(When the hydraulic oil temperature is low, the low temperature display
shown on the right is given.
(A) Display when temperature is correct: Monitor background (C) is blue
(B) Display when temperature is low: Monitor background (C) is white)
If the warm-up operation for the hydraulic equipment is not carried out
thoroughly, and the machine is moved, the reaction of the control levers
and pedals will be slow and the movement may not be what the operator
intended. Always warm up the hydraulic equipment. In particular, in
cold areas, always warm up the hydraulic equipment thoroughly.
There are two types of warm-up operation: warm up the engine and warm up the hydraulic equipment. In addition,
depending on the environment, the method of carrying out the warm-up operation may differ, so carry out the
warm-up operation according to the items given in the appropriate section.
(When only the engine is warmed up, the hydraulic equipment is not warmed up, so always carry out the warm-up
operation for the hydraulic equipment separately from the warm-up operation for the engine. Warm up the hydraulic
equipment thoroughly ensures that the hydraulic oil is warmed up and that warm hydraulic oil circulates in all the
control circuits.)
Checking of Engine Startability and Noise
When starting the engine, check that the engine causes no abnormal noise and that it starts up easily and smoothly.
Check also that there is no abnormal noise when the engine is at idle or when the revolution rises slightly.
When there is an abnormal noise at the engine startup and if that condition continues, the engine may be
damaged. In that case, ask your Komatsu distributor to check the engine as soon as possible.
Checking of Engine Acceleration and Deceleration
When stopping the machine during the operation, check that there is no irregular engine revolution or that the engine
does not stop suddenly.
Check also that the engine speed rises smoothly when the fuel control dial is turned to the full (Max).
Carry out these checks in a safe place, watching out for danger in the surroundings.
When the engine performs very badly at low idle and in the acceleration and if that condition continues, the
engine may be damaged or confuse the operator's sense of driving or lower the braking efficiency, and as a result
lead to an unexpected accident. In that case, ask your Komatsu distributor to check the engine as soon as
possible.
3 - 136
WARNING
OPERATION