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Komatsu Bulldozer D65PX-15E0: WHEN REQUIRED MAINTENANCE

Use this maintenance checklist and follow the schedule interval for the proactive and preventive maintenance of your bulldozer. This has been proven to lower costs by catching small service issues before they blossom into giant repair headaches.
MaintainX
11/04/2022

Komatsu Bulldozer D65PX-15E0: WHEN REQUIRED MAINTENANCE

Use this maintenance checklist and follow the schedule interval for the proactive and preventive maintenance of your bulldozer. This has been proven to lower costs by catching small service issues before they blossom into giant repair headaches.

    CLEAN INSIDE OF COOLING SYSTEM

    • Screenshot2021-07-23at10.05.06PM.png

    CLEAN INSIDE OF COOLING SYSTEM

    Use a permanent type of antifreeze.

    If, for some reason, it is impossible to use permanent type antifreeze, use an antifreeze containing ethylene glycol.

    Super Coolant (AF-ACL) has an anti-corrosion effect as well as an antifreeze effect.

    The ratio of antifreeze to water depends on the ambient temperature, but to obtain the corrosion resistance effect, a minimum ratio of 30% by volume is necessary.

    When deciding the ratio of antifreeze to water, check the lowest temperature in the past, and decide from the mixing rate table given below.

    It is actually better to estimate a temperature about 10oC lower when deciding the mixing rate.

    • Screenshot2021-07-23at10.09.27PM.png

    Use city water for the cooling water. If river water, well water or other such water supply must be used, contact your Komatsu distributor. We recommend use of an antifreeze density gauge to control the mixing proportions.

    Prepare a container to catch drained coolant: Min 101 liters capacity.

    CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT

    CHECK

    CLEAN, REPLACE OUTER ELEMENT

    Direct dry compressed air (less then 700 kPa (7 kg/cm2 , 100 psi)) to the element from inside along its folds,then direct it from outside along its folds and again from inside.

    REPLACING INNER ELEMENT

    CHECK ELECTRICAL INTAKE AIR HEATER

    CHECK TRACK TENSION

    INSPECTION

    When increasing tension

    When loosening tension

    When removing track

    CHECK AND TIGHTEN TRACK SHOE BOLTS

    Method for tightening (shoe bolt)

    Method for tightening (master link connecting bolt)

    Order for tightening

    REVERSE AND REPLACE THE END BITS AND CUTTING EDGES

    Reverse or replace the end bits and cutting edges before it is worn out to the blade end.

    • Screenshot2021-07-23at10.26.26PM.png

    The symbols in the work equipment column have the following meaning.

    If bolt (2) and nut (1) are damaged, replace them with new ones at the same time.

    Loosen nuts (1), remove bolts (2), then replace or reverse the cutting edge.

    • Screenshot2021-07-23at10.28.29PM.png
    • Screenshot2021-07-23at10.28.58PM.png

    CLEAN, CHECK RADIATOR FINS

    If the radiator fins are clogged or dirty, clean and inspect them.

    REPLACE AIR CONDITIONER BELT

    Replace the V-belt.

    Tighten jack bolt (2) and bolts (1), and apply tension to the V-belt.

    CLEAN, CHECK HYDRAULIC COOLER FINS

    If the hydraulic cooler fins are clogged or there is dirt caught in the fins, clean and check the fins.

    Set the hinge pin in position.

    When fixing the hydraulic cooler in position again:

    CLEAN, CHECK AIR CONDITIONER CONDENSER FINS

    If the air conditioner condenser fins are clogged, clean and check the fins.

    ADJUST IDLER CLEARANCE

    ADJUSTMENT

    CHECK UNDERCARRIAGE OIL

    Stop the machine on level ground, and check for any reduction in the oil at the idler (portion P), track roller (portion Q), bogie shaft (portion Q), and carrier roller (portion R).

    REMARK

    CLEAN AIR CONDITIONER AIR FILTER

    If the air conditioner air filter is clogged or there is dirt or dust in it, clean the filter.

    • Screenshot2021-07-24at9.39.42AM.png
    • Screenshot2021-07-24at9.40.22AM.png

    REMARK

    If the clogging of the filter cannot be removed by blowing with compressed air or washing in water, replace the filter with a new part.

    CHECK, ADJUST AIR CONDITIONER

    CHECKING TENSION OF COMPRESSOR BELT

    • Screenshot2021-07-24at9.43.01AM.png

    CHECK LEVEL OF REFRIGERANT (GAS)

    If the level of the refrigerant (gas) is low, the cooling effect will be reduced. Run the engine at high idling, and check the flow of the refrigerant in the refrigerant circuit through the sight glass of the receiver when the cooler is running at high speed.

    • Screenshot2021-07-24at10.49.08AM.png

    REMARK

    • Screenshot2021-07-24at10.50.45AM.png

    GREASE DOOR HINGE (MACHINES EQUIPPED WITH CAB)

    • Screenshot2021-07-24at10.57.11AM.png

    CHECK DOOR LOCK STRIKER (MACHINES EQUIPPED WITH CAB)

    • Screenshot2021-07-24at10.57.53AM.png

    CHECK DOOR LATCH

    CHECK

    • Screenshot2021-07-24at10.58.35AM.png

    REMARK

    • Screenshot2021-07-24at10.59.03AM.png

    REPLACE DOOR DAMPER (MACHINES EQUIPPED WITH CAB)

    • Screenshot2021-07-24at11.02.33AM.png

    CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID (MACHINES EQUIPPED WITH CAB)

    • Screenshot2021-07-24at11.03.21AM.png

    REPLACE WIPER BLADE (MACHINES EQUIPPED WITH CAB)

    • Screenshot2021-07-24at11.03.48AM.png

    Method of replacement

    Front, rear wiper

    • Screenshot2021-07-24at11.04.33AM.png
    • Screenshot2021-07-24at11.04.56AM.png

    Door wiper

    • Screenshot2021-07-24at11.05.29AM.png

    PROCEDURE FOR BLEEDING AIR IN HYDRAULIC SYSTEM

    Bleeding air from cylinders

    PROCEDURE FOR RELEASING INTERNAL PRESSURE OF HYDRAULIC SYSTEM

    • Screenshot2021-07-24at11.15.08AM.png

    Run the engine at low idling for about 5 seconds, and stop the engine. Move the blade control lever to back- ward, forward, right and left.

    CHECK BEFORE STARTING

Source: MaintainX (Community Member)

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