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6.3.9. Removal and installation of the fuel pump of high pressure (FPHP)

Model 463.323 (M612)

Details of the TNVD (M612) installation

1 — the Pressure head line
2 — TNVD
3 — the Carving union
4, 5 — Arms
6 — the Line of return of fuel

7 — Collars
8 — Bolts
9 — the Driving element
10 — the Sealing ring

 PERFORMANCE ORDER

  1. Remove panels of finishing of a cover of a head of cylinders.
  2. Take off a belt of the drive of auxiliary units (see the Head Dvigatel).
  3. Otboltite from TNVD (2) the pressure head line (1), - do not weaken the carving union (3) which should be held from a provorachivaniye the second key. Disconnect from a lifting eye of the power unit an arm (4).
  4. Remove from pump assembly (2) an arm (5).
  5. Release fixing collars (7) and take aside lines of return of fuel (6).
  6. Disconnect the returnable line (6) from TNVD (2), - prepare for collecting the spilled fuel.

The sealing ring is subject to replacement without fail.

  1. Turn out bolts (8) and remove assembly of TNVD (2).

TNVD is not subject to dismantling! In case of need the driving element (9) can be removed from it (prepare a replaceable sealing ring (10).

  1. Installation is made upside-down. Do not forget to replace sealing elements, track respect for purity of the interfaced surfaces and correctness of landing of a driving element (9).

The worn-out driving element (9) is replaced complete with an intermediate asterisk of the TNVD drive.

  1. In conclusion make cleaning of the processor memory of system of onboard self-diagnostics (see the Head Sistemy of electric equipment of the engine).

Model 463.333 (M628)

Details of the TNVD installation of the M628 engine (1 of 2)

1 — TNVD
2 — the Line of supply of fuel
3 — the TNVD Pressure head line
3a — the Carving union
4 — the Line of return of fuel
5 — the Bolt
6 — the Floating coupling of an advancing of an angle of injection

7 — the Sealing ring
8 — the Bolt
9 — the Preliminary fuel pump
10 — the Driving element
11 — the Sealing ring
12 — the Bolt
Y94 — the mix quality control Valve

Details of the TNVD installation of the M628 engine (2 of 2)

1 — TNVD
6 — the Floating coupling of an advancing of an angle of injection

13 — the Intermediate asterisk of the TNVD drive with the centrifugal proofreader
14 — the Nest

 PERFORMANCE ORDER

  1. Remove the air cleaner and the activator of the drive of a butterfly valve with the top air ducts (see the Section Service of Components of an Inlet Air Path).
  2. For Otboltita from TNVD (1) the pressure head line (3) and the line of return of fuel (4), - prepare replaceable sealing elements (a cone and a ring).

The carving union (3a) should be held from a provorachivaniye by means of the second key.

  1. Disconnect a line of communication (shooter) from the valve of control of amount of mix (Y94).
  2. Turn out bolts (5) and remove assembly of TNVD (1).

Do not open assembly of TNVD, - in case of need remove the floating coupling (6)!

  1. Estimate degree of wear of the coupling (6), in case of need make its replacement (assembled with an intermediate gear wheel of TNVD and the centrifugal proofreader (13)).
  2. Installation is made upside-down, - track that at the TNVD installation the nest (14) of an intermediate asterisk was developed in the same direction, as a zero tag (arrow). Do not forget to replace a sealing element of a natyazhitel. Do not forget to replace all sealing elements, track respect for purity of the interfaced surfaces.
  3. In conclusion make cleaning of the processor memory of system of onboard self-diagnostics (see the Head Sistemy of electric equipment of the engine).