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6.7.3. Low engine performance
Problem
Cause
Solution
Bad air supply
Air filter or air intake clogged
Clean or replace air filter, air housing and intake manifold
Bad fuel supply
Too less fuel in tank - no continous fuel supply
Refuel tank
Check injection pump and fuel tubes
Air in fuel system
Ventilate fuel system
Wrong fuel
Drain the tank entirely and refill with diesel
Fuel filter clogged
Check or replace fuel filter
Injection nozzle clogged
Clean and check injection nozzle
Wrong timing
Check injection pump position/mounting
Wrong valve clearance
Check valve clearance
Compression too low
Intake valve does not close correctly
Check valve clearance and proper closing of intake valve
Piston or piston rings worn
Send in device for repair
Wrong reading of motor performance
Using the device at above 1.000m sea level
The specification only apply to usage below 1.000m sea level.
Above 1.000m sea level the specification has to be derated.
Ambient temperature is above +25°C
The specification only apply to usage below +25°C ambient
temperature. Above +25°C the specification has to be derated.
6.7.4. Rough engine run
Problem
Cause
Solution
Fuel supply unsteady
Air in fuel system
Ventilate fuel system
Injection nozzle clogged
Clean and check injection nozzle
Injection pump not proper mounted or broken
Check injection pump position/mounting
If this is not the solution change the injection pump
Governor blocked
Speed adjust lever blocked
Check lever for easy movement
Governor system (centrifugal system) blocked
Send in device for repair
6.7.5. Engine overheating
Problem
Cause
Solution
Oil temperature too high
Motor overloaded
Reduce load
Ambient temperature too high
Cooling lamellars clogged/dirty
Clean cooling lamellars
Wrong oil level
Check oil level
Wrong engine oil
Drain oil and fill in correct oil according specification
Piston or piston rings worn
Send in device for repair
6.7.6. Engine suddenly stopps
Problem
Cause
Solution
No fuel
Tank completely empty
Fill up the tank and ventilate the injection pump
Fuel tube leakage
Check all fuel tube and pipes (including high pressure pipe)
Fuel filter clogged
Change fuel filter
Injection pump is broken
Try to ventilate injection pump to see pump function
If this is not the solution change the injection pump
Mechanical issues
Crankshaft, camshaft or piston is blocked
Send in device for repair
6.7.7. Abnormal running noise
Problem
Cause
Solution
Dejustage oder Verschleiss
Wrong valve clearance
Check and adjust valve clearance
Piston or piston rings worn
Send in device for repair
Bearing of piston pin worn
Connection rod bearing worn
Wrong injection timing
Injection nozzle clogged
