Komatsu D51EX-24, Operation & Maintenance Manual

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Check the alternator drive belt.
If alternator drive belt shows the following conditions, it must be
replaced. Ask your Komatsu distributor to replace it.
• When vertical flaw (2) that crosses horizontal flaw (1) is
found.
• When part of the belt has tears (3).
REMARK
When only horizontal flaw (4) is found, replacement is not re-
quired.
METHOD FOR CHECKING FOR LOOSE ROPS MOUNT BOLTS
Check the bolts for looseness or damage.
Bolts (1) (4 pieces each of right and left): 1 piece is located un-
der the floor plate.
• When any bolt is loose
Tighten the bolt.
Tightening torque: 785 to 981 Nm {80 to 100 kgm}
• When any bolt is damaged
Replace the bolt with a Komatsu genuine part.
METHOD FOR CHECKING AND CLEANING FAN
k k
WARNING
• When performing cleaning, there is a danger that dirt may scatter and cause personal injury. Wear
the protective equipment such as the protective eyeglasses and dust mask.
• When performing cleaning, always stop the engine and check that the fan is not rotating. If you
touch the fan when it is rotating, it will cause serious personal injury or death.
When the compressed air cannot be used, perform the cleaning according to the following procedure.
1.
Remove the bolts (1) (2 pieces) on the lower part of the ra-
diator grille.
MAINTENANCE PROCEDURE MAINTENANCE
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