Method For Checking For Loose Rops Mount Bolts - Komatsu D37EX-24 Operation & Maintenance Manual

MAINTENANCE PROCEDURE
1.
Open the DEF tank filler port cover, and lock the cover se-
curely with the lock bar (1).
2.
Remove the nut (3) of breather assembly (2) on top of the
DEF filler port.
Use a tool when the nuts are so tight to remove.
3.
Remove cover (4).
4.
Replace breather element (5) with a new one.
5.
Install cover (4) and nut (3).
In order not to damage the threaded portion of nut, tighten
nut (3) by hand until it is seated. Then tighten it 15 to 30 °
by using a tool.
6.
Release the lock bar (1), and close the DEF tank filler port
cover.
CHECK AND REPLACE ALTERNATOR DRIVE BELT TENSION AND REPLACING
ALTERNATOR BELT
• Special tools are required for checking the tension of the alternator drive belt and replacing it. Ask your Ko-
matsu distributor to perform this work.
• Since the auto-tensioner is installed, tension adjustment is not required.
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.
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MAINTENANCE