Wacker Neuson 803 Notice D'utilisation page 139

4 Malfunctions
4.1 Engine trouble
Problem
Engine does not start or is not easy to start
Engine starts, but does not run smoothly or faultless
Engine overheats. Temperature warning system
responds
OM 803 us – Edition 3.7 * 803b410.fm
The information given in this chapter is provided for maintenance personnel, for fast and
reliable detection of malfunctions and their appropriate repair.
Repairs must only be performed by authorized personnel.
Wrong SAE grade of engine lubrication oil
Fuel grade does not comply with specifications
Malfunctioning or empty battery
Loose or oxidized cable connections in starter circuit
Malfunctioning starter, or pinion does not engage
Wrong valve clearance
Malfunctioning injection nozzle
Malfunctioning cutoff solenoid
Malfunctioning fuse
Fuel grade does not comply with specifications
Dirty fuel filter
Wrong valve clearance
Air in fuel system
Injection line leaks
Malfunctioning injection nozzle
Oil level too low
Oil level too high
Dirty air filter
Dirty oil radiator fins
Coolant level too low
Cooling system leaks
Malfunctioning fan, torn or loose V-belt
Resistance in cooling system too high, flow capacity too low
Malfunctioning injection nozzle
Possible causes
Malfunctions
See
5-35
5-35
5-30
5-35
5-7
5-7
5-12
5-8
5-15
4-1