Komatsu WA470-6 2006, Operation & Maintenance Manual

Page: 168 / 392

3.3 Operation Operation
3-96
WA470-6H – VEAM946100
Check air cleaner element
WARNING
!
If inspection, cleaning, or maintenance is carried out with the
engine running, dirt will get into the engine and damage it.
Always stop the engine before carrying out these operations.
!
When using compressed air, there is danger that dirt may be
blown around and cause serious injury.
!
Always use protective glasses, dust mask, and other protec-
tive equipment.
1. Open the engine side cover on the right side of the chassis.
2. If the yellow piston in the display portion of dust indicator (1)
installed to the air cleaner enters the red range (7.5 kPa),
clean the element.
3. After cleaning, press the button of the dust indicator to reset
it.
4. If the yellow piston enters the red range (7.5 kPa) soon after
the dust indicator is reset, it is necessary to replace the ele-
ment.
For details, see "Replacing element (4-34)".
Electric air cleaner clogging sensor
(Machines equipped with KOMTRAX)
If the yellow piston in the display portion of dust indicator (1)
enters the red range (7.5 kPa), or air cleaner clogging caution
lamp (2) on the machine monitor lights up, clean the air cleaner
element.
NOTE
!
Do not clean at the element until the air cleaner clogging
caution lamp lights up.
!
If the element is cleaned frequently before the air cleaner
becomes clogged, the air cleaner will not be able to provide
its expected performance and the cleaning efficiency will
become poor.
!
In addition, dirt stuck to the element will drop inside the inner
element more frequently during the cleaning operation.
GK047015
1
GK038005
2