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14. Every 2400 hours: CHECKING THE INJECTORS Injectors should be inspected by trained personnel with access to the neces- Removal 1. Clean around the injectors and connections, including clamps and 2. Detach the delivery pipe bundle and leak-off fuel lines. 3. Unscrew the injector. 4. Fit protective plugs on the injector and delivery pipe. 5. Lift up the seal from the bottom of the injector seat if it does not come 6. Fit a core plug in the injector seat in the cylinder head. 7. Clean the injectors and check/adjust in a nozzle tester. Correct opening pressure, see Technical data, page 46. Fitting 1. Check that there is no old seal in place and fit a new seal in the bottom 2. Fit a new O-ring in the socket nut and a new seal under the socket nut. 3. Fit the injector. 4. Tighten the socket nut to 70 Nm (7.0 kpm). 5. Fit the delivery pipe and tighten the union nuts to 20 Nm (2.0 kpm). Fit Important Take care to fit the delivery pipe without tension and make sure 6. Fit the leak-off fuel line. Tighten the bolts to 11 Nm (1.1 kpm). 1. Delivery pipes 2. Cap nut 3. Washer 4. Cone 5. Connector on injector or 1. Socket nut 2. O-ring 3. O-ring 4. Stop ring 5. Guide pin 6. Seal The delivery pipes must not be bent. All clamps must be refitted. Always wear gloves and eye protection when testing injectors. Fuel escaping under high pressure can penetrate body tissue and cause serious injury. |