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Our technical support service is always at your disposal during the opening hours.
However, if you cannot solve your problem by consulting our Troubleshooting, you can contact us.
| Cause | Remedy |
|---|---|
| Tank empty or tank vent blocked | Fill tank,bleed system, check tant vent |
| Air in fuel system | Bleed fuel system, eliminate air leaks |
| Shut off/start device defective | Repair or replace |
| Fuel filter dirty | Replace fuel filter |
| Injection lines blocked/restricted | Clean or replace |
| Fuel supply lines blocked/restricted | Test all fuel lines , flush or replace |
| Loose connections, injection lines leak or broken | Tighten the connection,eliminate the leak |
| Paraffin deposit in fuel filter | Replace filter, use winter fuel |
| Pump-to-engine timing incorrect | Readjust timing |
| Injection nozzle defective | Rapair to replace |
| Pre-heating system defective | Test the glow plugs, replace as necessary |
| Injection sequence does not correspond to firing order | Install fuel injection lines in the correct order |
| Low or uneven engine compression | Repair as nececessary |
| Fuel injection pump defective or cannot be adjusted | Remove pump and repair it |
| Cause | Remedy |
|---|---|
Tank empty or tank vent blocked | Fill tank,bleed system, check tant vent |
Air in fuel system | Bleed fuel system, eliminate air leaks |
Low idle misadjusted | Readjust idle stop screw |
Governor misadjusted or defective | Readjust or repair |
Fuel injection pump defective or cannot be adjusted | Remove pump and repair it |
| Cause | Remedy |
|---|---|
| Air in fuel system | Bleed fuel system, eliminate air leaks |
| Injection nozzle defective | Rapair to replace |
| Injection sequence does not correspond to firing order | Install fuel injection lines in the correct order |
| Delivery valve leakage | Replace delivery valve |
| Low or uneven engine compression | Repair as nececessary |
| Governor misadjusted or defective | Readjust or repair |
| Fuel injection pump defective or cannot be adjusted | Remove pump and repair it |
| Cause | Remedy |
|---|---|
Tank empty or tank vent blocked | Fill tank,bleed system, check tant vent |
Air in fuel system | Bleed fuel system, eliminate air leaks |
Fuel filter dirty | Replace fuel filter |
Injection lines blocked/restricted | Clean or replace |
Fuel supply lines blocked/restricted | Test all fuel lines , flush or replace |
Loose connections, injection lines leak or broken | Tighten the connection,eliminate the leak |
Paraffin deposit in fuel filter | Replace filter, use winter fuel |
Pump-to-engine timing incorrect | Readjust timing |
Injection nozzle defective | Rapair to replace |
Overflow valve defective or blocked | Clean the orifice or replace fitting |
Fuel injection pump defective or cannot be adjusted | Remove pump and repair it |
| Cause | Remedy |
|---|---|
Tank empty or tank vent blocked | Fill tank,bleed system, check tant vent |
Fuel filter dirty | Replace fuel filter |
Injection lines blocked/restricted | Clean or replace |
Fuel supply lines blocked/restricted | Test all fuel lines , flush or replace |
Loose connections, injection lines leak or broken | Tighten the connection,eliminate the leak |
Pump-to-engine timing incorrect | Readjust timing |
Injection nozzle defective | Rapair to replace |
Engine air filter blocked | Replace air filter element |
Injection sequence does not correspond to firing order | Install fuel injection lines in the correct order |
Maximum speed misadjusted | Readjust maximum speed screw |
Overflow valve defective or blocked | Clean the orifice or replace fitting |
Timing device defective | Repair or replace timing device |
Low or uneven engine compression | Repair as nececessary |
Governor misadjusted or defective | Readjust or repair |
Fuel injection pump defective or cannot be adjusted | Remove pump and repair it |
| Cause | Remedy |
|---|---|
Loose connections, injection lines leak or broken | Tighten the connection,eliminate the leak |
Pump-to-engine timing incorrect | Readjust timing |
Injection nozzle defective | Rapair to replace |
Engine air filter blocked | Replace air filter element |
Injection sequence does not correspond to firing order | Install fuel injection lines in the correct order |
Low idle misadjusted | Readjust idle stop screw |
Timing device defective | Repair or replace timing device |
Governor misadjusted or defective | Readjust or repair |
Fuel injection pump defective or cannot be adjusted | Remove pump and repair it |
| Cause | Remedy |
|---|---|
Shut off/start device defective | Repair or replace |
Governor misadjusted or defective | Readjust or repair |
Fuel injection pump defective or cannot be adjusted | Remove pump and repair it |
| Cause | Remedy |
|---|---|
Air in fuel system | Bleed fuel system, eliminate air leaks |
Injection lines blocked/restricted | Clean or replace |
Pump-to-engine timing incorrect | Readjust timing |
Injection nozzle defective | Rapair to replace |
Engine air filter blocked | Replace air filter element |
Injection sequence does not correspond to firing order | Install fuel injection lines in the correct order |
Timing device defective | Repair or replace timing device |
Low or uneven engine compression | Repair as nececessary |
Governor misadjusted or defective | Readjust or repair |
Fuel injection pump defective or cannot be adjusted | Remove pump and repair it |
| Cause | Remedy |
|---|---|
Tank empty or tank vent blocked | Fill tank,bleed system, check tant vent |
Air in fuel system | Bleed fuel system, eliminate air leaks |
Fuel filter dirty | Replace fuel filter |
Injection lines blocked/restricted | Clean or replace |
Paraffin deposit in fuel filter | Replace filter, use winter fuel |
Pump-to-engine timing incorrect | Readjust timing |
Injection sequence does not correspond to firing order | Install fuel injection lines in the correct order |
Timing device defective | Repair or replace timing device |
Fuel injection pump defective or cannot be adjusted | Remove pump and repair it |
| Cause | Remedy |
|---|---|
Low idle misadjusted | Readjust idle stop screw |
Maximum speed misadjusted | Readjust maximum speed screw |
Governor misadjusted or defective | Readjust or repair |
| Cause | Remedy |
|---|---|
Tank empty or tank vent blocked | Fill tank,bleed system, check tant vent |
Air in fuel system | Bleed fuel system, eliminate air leaks |
Fuel filter dirty | Replace fuel filter |
Fuel supply lines blocked/restricted | Test all fuel lines , flush or replace |
Paraffin deposit in fuel filter | Replace filter, use winter fuel |
Pump-to-engine timing incorrect | Readjust timing |
Injection nozzle defective | Rapair to replace |
Timing device defective | Repair or replace timing device |
Low or uneven engine compression | Repair as nececessary |
Governor misadjusted or defective | Readjust or repair |
| Cause | Remedy |
|---|---|
Overflow valve defective or blocked | Clean the orifice or replace fitting |
For furher information or support, please contact our technicians by filling out the form below, you will be contacted as soon as possible.
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We are a family business that has evolved over two generations into an industrial company: the intuition to anticipate the market by offering alternative products to the new ones was born in the late 80s, but began almost 10 years later with the birth of the brand DAG (acronym of Diesel Austausch Gruppe).
Pioneers of the sector, we first exhibited our project in 1998 at Automechanika Frankfurt , the most important world fair for Automotive where we are still present today.
