

The Komatsu Bulldozer D65P-12 is a robust and versatile piece of heavy machinery designed for earthmoving and construction tasks. Known for its reliability and performance, this bulldozer is essential for efficient site preparation and material handling in various industrial applications.
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Tensioning Guide
Belt-diagram
C-120 pulleys
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Pre-built workflows to keep your asset running smoothly.
Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Integrate maintenance plans directly into your work orders.
Motion Industries
Applied Industrial Technologies
Electrical Brothers
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Drive Motor
B2 Rollers
Tensioning System
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Komatsu Bulldozer D65P-12
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500 Hourly Bulldozer Maintenance
WARNING: The engine is at high temperature immediately after the machine has been operated. Wait for the engine to cool down before replacing the filter. Do not bring fire or sparks near the fuel.
Prepare a filter wrench and a container to catch the fuel.
Set the container under the filter cartridge to catch the drained oil.
Using a filter wrench, turn filter cartridge (1) counterclockwise to remove it.
Clean the filter holder, fill the new filter cartridge with clean fuel, then coat the packing surface with oil and install to the filter holder.
NOTICE: When filling with fuel, use clean fuel and be careful not to let any dust or dirt get in. Portion (B) at the center is the clean side, so be particularly careful not to let any dust or dirt get in. When adding fuel, always add from small hole (A) at eight places on the dirty side.
When installing, tighten until the packing surface contacts the seal surface of the filter holder, then tighten it up 1/2 to 3/4 of a turn.
If the filter cartridge is tightened too far, the packing will be damaged and this will lead to leakage of fuel. If the filter cartridge is too loose, fuel will also leak from the packing, so always tighten to the correct amount.
Loosen the knob of feed pump (2) and operate it 50 to 60 times up and down. This will bleed the air.
50 Hourly Bulldozer Maintenance
Warning: Carry out this procedure before operating the machine.
Prepare a container to catch the fuel that is drained.
Open drain valve (1) at the bottom inside the inspection cover on the left side at the rear of the machine and drain the water and sediment accumulated at the bottom together with fuel.
Warning: When doing this, be careful not to get fuel on yourself.
When clear fuel comes out, close drain valve (1).
250 Hourly Bulldozer Maintenance
Lubricating
Power TiltDozer
Power Tilt-Power Pitch Dozer
Angle Dozer
Grease Equalizer Bar Side Pin
Grease Equalizer Bar Center Pin
Check Oil Level in Final Drive Case, Add Oil
Check Oil Level in Hydraulic Tank, Add Oil
Check Level of Battery Electrolyte
2000 Hourly Bulldozer Maintenance
CHANGE OIL IN HYDRAULIC TANK, REPLACE OIL FILTER ELEMENT
WARNING
The parts and oil are at high temperature immediately after the engine is stopped, and may cause burns. Wait for the temperature to go down before starting the work.
When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it.
Refill capacity: 55 liters (14.53 US gal)
1. Lower the blade to the ground securely, stop the engine and slowly turn the cap of oil filler (F) to release the internal pressure. Then, remove the cap.
2. Remove the cover (1) at the bottom of the hydraulic tank.
3. Loosen drain valve (2), drain the oil, tighten drain valve (2) again, then install cover (1). When loosening drain valve (2), be careful not to get oil on yourself.
4. To drain the oil in hydraulic oil filter case (7), release the grommet under the fender and remove drain plug (3). Be careful to avoid getting oil on yourself when remove drain plug (3).
4000 Hourly / 2 Yearly Bulldozer Replacement
Replace Fuel hose (fuel tank - injection pump)
Replace Fuel hose (injection pump - fuel filter)
Replace Feul retum hose (injection pump - fuel tank)
Replace Fuel return hose (injection nozzle - fuel tank)
Replace Hose (power train strainer - power train pump)
Replace Hose (power train pump - power train filter)
Replace Hose (power train filter - transmission)
Replace Hose (transmission case - steering relief valve)
Replace Hose (power train lubrication pump - steering case)
Access the parts list for your equipment in MaintainX.
Power Train Filter Element
07063-01054
Blade D65P Tiltdozer Tilt Pitch Dozer End Bit (Left)
14Y-71-11330
Blade D65P Tiltdozer Tilt Pitch Dozer Cutting Edge
14Y-71-11210
Electrical Intake Air Heater Gasket
6150-11-4820
Blade D65P Tiltdozer Tilt Pitch Dozer (Nut)
02290-11219
Power Train Filter Element
07063-01054
Blade D65P Tiltdozer Tilt Pitch Dozer End Bit (Left)
14Y-71-11330
Blade D65P Tiltdozer Tilt Pitch Dozer Cutting Edge
14Y-71-11210
Electrical Intake Air Heater Gasket
6150-11-4820
Blade D65P Tiltdozer Tilt Pitch Dozer (Nut)
02290-11219
Power Train Filter Element
07063-01054
Blade D65P Tiltdozer Tilt Pitch Dozer End Bit (Left)
14Y-71-11330
Blade D65P Tiltdozer Tilt Pitch Dozer Cutting Edge
14Y-71-11210
Electrical Intake Air Heater Gasket
6150-11-4820
Blade D65P Tiltdozer Tilt Pitch Dozer (Nut)
02290-11219
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