Komatsu 4D98 Series Shop Manual page 28

2. Troubleshooting
Corrective action
Trouble symptom
e Exhaust smoke
Cause
Clogged air fifter
0 0 0 0,
0 Clean.
I
Engine used at high temperatures or at high
0 0
altitude
0
0 0
Study output drop and load matching.
E
al
g
Clogged exhaust pipe
0 0
0 0
Clean.
rn
2
rIJ
iz
:
5
e
.t
a
Starting motor defect
0
Repair or replace. (See Chapter 9.)
Alternator defect
0
Repair or replace. (See Chapter 10.)
Open-circuit in wiring
0
Repair.
$ Battery voltage drop
0
Inspect and charge the battery. (See 3.10 in Chapter 3.)
5
r2
5
.o
ij
0,
w
2-3-4