Attention! Protect the generator from contamination. After disconnecting the pipelines and hoses, close the holes formed with special caps.
The position of the HPP relative to the valve mechanism is arbitrary and does not affect the operation of the engine.
Replacement of NVD must be carried out in the following order. Prepare fixtures «13.5.020», «13.5.191» And «13.5.192». Remove the intake manifold, fan shroud, front engine accessory guard.
Drain coolant (only from the radiator of the engine cooling system) and a plastic return tube. Remove the alternator drive belt.
Disconnect loop (1, fig. 6.112) from NVD. Loosen pipe clamps (2) fuel supply and disconnect the fuel return hose (3) from NVD. Using fixture «13.5.020», unscrew the union nut (4) high pressure pipeline.
Unscrew the screw plug (10, see fig. 6.14) access to the fastening nut of the low pressure drive sprocket.
Loosen the nut (3, see fig. 6.109) fastening of an asterisk of a drive of HP.
Screw in fixture «13.5.192» into the timing cover. Screw in the fixture by hand «13.5.191» (2, fig. 6.113), without ejector bolt (1), into the NVD asterisk. Screw in the push bolt (1) until a snug fit to the NVD.
Loosen the nuts (5, see fig. 6.109) fasteners NVD. Tighten the push bolt (1), until the HPV separates from the sprocket. Remove NVD.
Attention! To ensure the subsequent installation of HP, fixture «13.5.190» with the drive sprocket must be left on the engine and the ejector bolt removed.
The installation of HP should be carried out in the reverse order, while it is necessary. Replace seal (1, fig. 6.114), paying attention to the correctness of its position.
Sealing surfaces must be dry and free from grease.
Tighten the nut M14x1.5 for fastening the sprocket of the low-pressure drive drive to a torque of 65 Nm (6.5 kgf·m). Replace the sealing ring, lightly lubricate it with engine oil and tighten the M30x1.0 screw plug with a torque of 70 Nm (7.0 kgf·m). Tighten the union nuts on the hydraulic accumulator and HPP to a torque of 23 Nm (2.3 kgf·m).
Pay attention to the position of the rubber-metal cushion (19, see fig. 6.109) under pressure pipelines. Replace the HP fuel hose clamps and assemble the engine. To remove air from the power system, turn on the ignition for about 1 minute.