Komatsu Galeo PC800LC-8, Operation & Maintenance Manual

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OPERATION
DETAILED CONTROLS AND GAUGES
3-29
REMARK
In some cases, the screen in Step 1 may switch to the screen
on the right (red display) without switching to the screen in Step
4, and the fan may not rotate in reverse. This is designed to
protect the equipment and to prevent the fan from rotating in
reverse depending on the water temperature and hydraulic oil
temperature.
If it is desired to rotate the fan in reverse, press Back switch
(8), switch to the initial screen, run the engine at low idling or
stop it, then carry out the warming-up or cooling-down opera-
tion.
If the water temperature and hydraulic temperature on the ini-
tial screen indicates ranges (A) - (B) shown in the diagram on
the right, the fan can be rotated in reverse.Carry out the proce-
dure in order from Step 1.
The system is controlled so that when the fan is rotating in
reverse, the work equipment makes almost no movement even
when the levers are operated. Rotating the fan in reverse is
intended for use in cleaning the radiator, so when carrying out
operations and moving the work equipment, switch the fan to
the normal direction of rotation before starting operations.
Adjusting Set Value of Economy Mode
1. Press switch (7) and the monitor display screen changes to
the fan reverse rotation and economy mode adjustment
screen show on the right.
01: Fan reverse rotation menu
02: Economy mode adjustment menu
2. When adjusting the set value of the economy mode,
adjusting the engine output can provide an improvement in
fuel consumption in E mode.
Use UP switch (9) or DOWN switch (10) to select “02: Fan
reverse rotation“, then press enter switch (11) to accept the
input. The screen changes to the screen on the right.
There are four levels that can be set: E0, E1, E2, and E3,
as shown in the diagram on the right.
(It is set to E0 when the machine is shipped from the fac-
tory.)
3. Use UP switch (9) or DOWN switch (10) to select E0 - E3.