Komatsu D51EX-24, Operation & Maintenance Manual

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Wear standards
Item Criteria ( mm)
No. Measuring point
Standard
dimension
Repair limit
1 Height of end bit 102 85
2 Height of cutting edge 102 85
REMARK
• If both sides of the cutting edge are worn out, replace
with new ones.
• If the wear extends to the mounting surface, repair the
mounting surface before installing.
5.
Loosen the nut (3) and remove the bolt (4).
6.
Remove the cutting edge and end bit.
7.
Clean the mounting face.
8.
Turn the cutting edge and end bit 180 deg. or replace them
with new ones.
9.
Install the cutting edge and end bit, and tighten them light-
ly.
If nut (3) and bolt (4) are damaged, replace them as well.
10. Press the blade against the ground to eliminate of the play
of bolt (4).
11. Tighten the bolt to the specified torque.
Tightening torque: 255±34 Nm {26±3.5 kgm}
12. After operating the machine for several hours, retighten the mounting nuts.
CLEAN AND CHECK RADIATOR FINS AND OIL COOLER FINS
If there is any mud or dirt stuck to the radiator or oil cooler, clean them.
Check the rubber hoses. If they are cracked or fragile, replace them. Also, check the hose clamp for looseness.
METHOD FOR CLEANING FIN BY ROTATING HYDRAULIC DRIVE FAN IN RE-
VERSE
NOTICE
When the hydraulic drive fan rotates in reverse, take extreme care of scattering of dust.
When stopping the engine during the Fan Reverse Mode, first run the engine at low idle, then stop it.
The dust and dirt stuck to the radiator and cooler can be blown out by rotating the hydraulic drive fan in the
reverse direction.
1.
Turn the starting switch (1) to OFF position and stop the
engine.
MAINTENANCE MAINTENANCE PROCEDURE
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