

The Komatsu Bulldozer D51PX-24 is a versatile and powerful piece of heavy machinery designed for construction and earthmoving tasks. Known for its reliability and efficiency, this bulldozer excels in various applications, making it an essential asset for any construction fleet.
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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 D51PX-24
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Integrate maintenance plans directly into your work orders in MaintainX.
4000 Hourly Bulldozer Maintenance
REPLACE DEFINED LIFE PARTS
Material quality of these parts can change as time passes and they are likely to wear out or deteriorate. Replace them every 2 years or every 4000 hours, whichever comes sooner.
METHOD FOR CHECKING WATER PUMP
Check around the water pump for water leakage. If any abnormality is found, ask your Komatsu distributor for repair or replacement of the parts.
METHOD FOR CHECKING STARTING MOTOR
Ask your Komatsu distributor to have the starting motor checked. If the engine is started frequently, have this inspection performed every 1000 hours.
METHOD FOR REPLACING ACCUMULATOR (FOR CONTROL CIRCUIT)
The accumulator is charged with high-pressure nitrogen gas, so mistaken operation may cause an explosion, which will lead to serious injury or death, or damage. For handling, always observe the following.
NOTICE
4500 Hourly Bulldozer Maintenance
Warning: This maintenance check requires trained personnel with PPE!
DEF tank cleaned by Komatsu distributor?
DEF tank mounting portion cleaned by Komatsu distributor?
Sign off on the bulldozer maintenance
When Required Bulldozer Maintenance
Warning: This maintenance check requires trained personnel with PPE!
Warning: If inspection, cleaning, or maintenance is performed while the engine is running, dust enters into the engine and damages it. Be sure to stop the engine before performing these works.
Warning: When using compressed air, there is a danger that dirt may scatter and cause personal injury. Always wear protective equipment such as protective eyeglasses and dust mask.
Warning: When working in high places or where the foothold is poor, be careful not to fall because of the reaction when pulling out the element.
Air cleaner clogging caution lamp lights up
Inside yellow piston of dust indicator laps over the peripheral red zone
Compressed air, high-pressure water, or steam hits your body directly or dirt is scattered by use of it
Sands and dusts removed from inside of the machine
Covers installed on the bottom of the machine with the mounting bolts
8000 Hourly Bulldozer Maintenance
METHOD FOR REPLACING FUEL SPRAY PREVENTION CAP
Ask your Komatsu distributor for replacement of the fuel spray prevention caps.
Maintenance for every 50, 250, 500, 1000, 2000 and 4000 hours service should be performed at the same time.
Enter the bulldozer's hour meter reading
Sign off on the bulldozer maintenance
500 Hourly Bulldozer Maintenance
METHOD FOR CHANGING OIL IN ENGINE OIL PAN, REPLACING ENGINE OIL FILTER CARTRIDGE
Engine parts and oil cooled down before starting the work?
Drained oil checked for excessive metal particles or foreign material?
New filter cartridge filled with clean oil and installed correctly?
Oil level checked after running the engine at low idle?
METHOD FOR REPLACING FUEL PREFILTER CARTRIDGE
Fuel tank inspection cover opened and fuel supply valve turned to CLOSE position?
Water and sediments drained from the transparent cup and all the fuel drained from the filter cartridge?
New filter cartridge filled with clean fuel and installed correctly?
Access the parts list for your equipment in MaintainX.
Fuel Tank Breather Element
421-60-35170
Hst Oil Filter Cartridge
12Y-60-38710
Cutting Edge (Center)
12Y-72-11220
Def Filter Kit
6540-71-2320
High Capacity Blade / Wide Blade Bolt
02090-11270
Fuel Tank Breather Element
421-60-35170
Hst Oil Filter Cartridge
12Y-60-38710
Cutting Edge (Center)
12Y-72-11220
Def Filter Kit
6540-71-2320
High Capacity Blade / Wide Blade Bolt
02090-11270
Fuel Tank Breather Element
421-60-35170
Hst Oil Filter Cartridge
12Y-60-38710
Cutting Edge (Center)
12Y-72-11220
Def Filter Kit
6540-71-2320
High Capacity Blade / Wide Blade Bolt
02090-11270
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