Komatsu HD785-5, Руководство по эксплуатации и техническому обслуживанию

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MAINTENANCE
SERVICE PROCEDURE
WHEN REQUIRED
CHECK, CLEAN OR REPLACE AIR CLEANER
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 protective equipment.
CHECKING
Clean the air clearner element if the dust indicator (1) shows red.
NOTICE
Do not clean the air cleaner element before red piston in dust indicator
appears.
If the element is cleaned frequently before the red piston appears, the air
cleaner will not be able to display its performance fully, and the cleaning
efficiency will also go down.
In addition, during the cleaning operation, more dirt stuck to the element
will fall inside the inner element.
CLEANING OR REPLACING OUTER ELEMENT
1. Remove the wing nut (2), then remove the outer element (3).
2. Clean the air cleaner body interior and the cover.
3. Direct dry compressed air (less than 0.69 MPa (7 kgf/ cm
2
, 99.4
PSI)) to the element from inside along its folds, then direct it
from outside along its folds and again from inside.
1) Remove one seal from the element whenever the element
has been cleaned.
2) Replace the outer element if it has been cleaned 6 times
repeatedly or used throughout a year. Replace the inner
element at the same time.
3) Replace both inner and outer elements when the dust
indicator red piston appears soon after installing the
cleaned outer element even though it has not been
cleaned 6 times.
4) Check inner element mounting nuts for looseness and, if necessary, retighten.
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