VM Motori MR 500 Serie Manual Instrucciones Para El Uso página 90

TROUBLESHOOTING
The information below are provided to facilitate the iden-
tification and solution of possible anomalies and failures
which may occur during operation.
Some of these problems can be solved by the user, while
Problem
During the ignition phase the
control board and the engine
do not start.
The engine does not
start
The starter motor runs
idle
The starter motor is not
running
English
INFORMATION ABOUT FAILURES
Cause
Flat battery
Fuse "triggered"
The electric cables are discon-
nected or they do not guarantee
continuity
Failure of engine revolution sen-
sor
Presence of air in the fuel supply
circuit
Dirty or faulty injectors
The injection pump is set incor-
rectly or is faulty
Failure of the start control
Fuse "triggered"
The engine starting relay is not
connected correctly or is faulty
Electromagnet failure
Flat battery
Interrupted electric connection
Worn brushes
Fuse "triggered"
others require specific technical skills or abilities, therefo-
re they should be exclusively dealt with by qualified tech-
nicians with extensive experience in the specific sector of
intervention.
Remedy
Recharge or replace battery
Reset the fuse (see "Reset fuses")
Check the electric connections
Replace the sensor. Apply to a service work-
Carry out bleeding (see "Fuel supply circuit
Clean or replace injectors. Apply to a service
Adjust the pump or replace it. Apply to a service
Replace the start control. Apply to a service
Reset the fuse (see "Reset fuses")
Replace the relay. Apply to a service workshop
Check the starter motor. Apply to a service
Recharge or replace battery
Check the electric connections
Replace the worn brushes. Apply to a service
Reset the fuse (see "Reset fuses")
37
MR 500
shop
bleeding")
workshop
workshop
workshop
workshop
workshop
Ed.4 - 02/2024
GB