Komatsu Galeo BR380JG-1E0 Shop Manual page 418

40 Troubleshooting
Phenomena considered to be failures and troubleshooting Nos.
No. Phenomena considered to be failures
1 User code is displayed on machine monitor
When failure history is checked, error code is displayed in electri-
2
cal system
When failure history is checked, error code is displayed in
3
mechanical system
4 Engine does not start easily (It always takes time to start)
5 Engine does not crank
Engine cranks but exhaust smoke does not come
6 Engine does
out
not start
Exhaust smoke comes out but engine does not
7
start
8 Engine speed does not rise sharply
9 Engine stops during operation
10 Engine does not rotate smoothly
11 Engine lacks output (or lacks power)
12 Exhaust gas color is bad (Incomplete combustion)
13 Oil is consumed much or (exhaust gas color is blue)
14 Oil becomes dirty quickly
15 Fuel is consumed much
Coolant contains oil (or coolant spurts back or coolant level goes
16
down)
17 Oil pressure drops
18 Oil level rises (Water or fuel is mixed in oil)
19 Coolant temperature becomes too high (overheating)
20 Abnormal sound comes out
21 Vibration is excessive
22 Engine does not stop
23 Automatic warm-up function does not work
24 The engine preheater does not operate
25 Speed or power of whole work equipment and travel is low
26 Engine speed lowers extremely or engine stalls
27 All work equipment stops suddenly
28 Work equipment and travel systems do not work
29 Abnormal sound comes out from around hydraulic pump
30 Fine control performance or response is low
BR380JG-1E0
Phenomena related to user code, error code, or failure code
Phenomena related to engine
Phenomena related to work equipment and travel
Troubleshooting
Indication
E-mode H-mode
of code
Accord-
ing to
indicated
code
E-1
E-2
E-3
E-4
E-5
SEN02089-01
S-mode
S-1
S-2 a)
S-2 b)
S-2 c)
S-3
H-2 S-4
S-5
H-1 S-6
S-7
S-8
S-9
S-10
S-11
S-12
S-13
S-14
S-15
S-16
H-1 S-6
H-2 S-4
H-3
H-4
H-5
7