MMD Equipment 40S-8B1 - Manual (Page 57)

6. Maintenance/Adjustment
6-5
6.2.1 Engine trouble
 This unit is equipped with a controller which
memorizes details of engine troubles. When the
engine fails, the diagnosis lamp“1”glows.
Diagnosis lamp lighting pattern indicates the
states of engine failure and it causes engine to
emergency stop.
 To solve or repair failures, special knowledge is
required. Contact your nearest distributor or
directly us.
Trouble
Flickering
pattern of
trouble indicator
Functions
Excessive RPM L 1 and S 1 RPM speed: higher 115% than rated speed
Drop of engine oil
pressure
L 1 and S 2 Functioning oil pressure: less than 0.05MPa
Battery charging faulty L 1 and S 3 Disconnection of belts stops charging battery.
Rise of coolant
temperature
L 1 and S 4 When engine coolant temperature rises up to 110℃.
Protection of starter L 1 and S 7
This indicator is “ON” when starter continues to work
longer than 12 seconds.
Malfunction of RPM
sensor
L 2 and S 1
When RPM sensor is in disorder or cable connection is
cut or short-circuited.
Trouble of solenoid
sensor
L 2 and S 2
When cable of actuator is disconnected or
short-circuited.
Disconnection of coolant
temperature sensor
L 2 and S 4 When cable of coolant thermometer is disconnected.
Short-circuiting of
coolant temp. sensor
L 2 and S 5
When cable of coolant thermometer gets
short-circuited.
Disconnection of
alternator L terminal
L 2 and S 6
When cable of alternator L terminal gets
short-circuited.
Trouble of power supply
for sensors
L 2 and S 7 When power cable for ECU gets short-circuited.
Excessive voltage L 3 and S 1
When voltage of alternator rides abnormally, function
voltage: 18V.
Running out of fuel L 3 and S 2
When engine stops due to running out of fuel or fuel
system clogging.
Fuses failure L 4 and S 1 When 5A fuse fails.
※L and S mean long time and short time alternatively. Also the numbers of each L and S mean
repeated time of flickering lamp.
A100407
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