Nilfisk RS 502 Betriebsanleitung Seite 157

Problem
Diesel engine
The engine runs but does not start/does not
start properly
The key is inserted but the starter does not
run
The engine does not run smoothly
Glow plugs
The glow plugs do not turn on when turning
the key to ON
The display warning light does not turn off
after about 8 seconds
The display warning light does not turn on
after starting the engine
Possible cause
K14 engine off relay is welded/disconnected
The display output is damaged/disconnected
The F3.2 fuse is open
The fuel solenoid valve is damaged/disconnected
The safety electronic board output for pulldown
solenoid valve is damaged/disconnected
The K1 glow plug relay is damaged/disconnected
The F1.1 fuse is open
The safety electronic board is damaged/discon-
nected
The F3.5 safety electronic board fuse is open
The starter is damaged/disconnected
The K4 start-up relay is damaged/disconnected
The F1.4 fuse is open
The battery is disconnected
The safety electronic board output is damaged/
disconnected
The ignition switch is damaged/disconnected
The engine is running/the safety electronic board
input is active for fault
The operator is not on the driver's seat/the sensor
is faulty
The machine is not in neutral/the sensors are
faulty
The parking brake is disengaged/the sensor is
faulty
The safety electronic board is damaged/discon-
nected
The F3.5 safety electronic board fuse is open
The battery charge is insuffi cient/the battery does
not charge
The alternator is damaged/disconnected
The F1.4 alternator fuse is open
The alternator adjuster fuse is open
The battery feedback on alternator is open
The F1.1 fuse is open
The K1 glow plug relay is damaged/disconnected
The connection to the display warning light is
open
The safety electronic board output is damaged/
disconnected
The K1 glow plug relay is shorted
The safety electronic board output is damaged/
shorted
RS 502
USER MANUAL
Replace/connect
Replace/connect
Replace
Replace/connect
Replace/connect
Replace/connect
Replace
Replace/connect
Replace
Replace/connect
Replace/connect
Replace
Connect the battery cables
Replace/connect
Replace/connect
Release the ignition key/replace
The operator must sit on the driver's seat/
replace
Release the drive pedal/replace
Engage the parking brake/replace
Replace/connect
Replace
Use a proper battery charger/replace the
battery
Replace/connect
Replace
Replace
Check the connection on K14 and on alterna-
tor
Replace
Replace/connect
Connect
Replace/connect
Turn off immediately and check for proper
operation
Turn off immediately and check for proper
operation
33019741(2)2009-12 A
ENGLISH
Remedy
45