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| Close shut-off tap -arrow- on pressure gauge. Pressure must rise to min. 3.9 bar. When 4.2 bar is reached, open shut-off tap again immediately. |
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| Fuel pump is OK. Pressure limiting valve in fuel filter is defective. Renew fuel filter. |
If pressure does not rise: |
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| Fuel pump defective, renew fuel pump unit . |
Note Before removing pressure tester, place a cloth around the connections to be loosened. |
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