Service Infiniti QX4 since 1996 of release
1. Introduction
2. The maintenance instruction
3. Routine maintenance
4. The engine
5. Cooling and heating systems
6. Power supply systems and managements
7. Start and charge systems
7.1. Specifications
7.2. Check of a condition of the generator
7.3. Check of serviceability of a condition of a starter
8. A transmissionnaja line
9. Brake system
10. A suspension bracket and a steering
11. A body
12. An electric equipment
 












7-2-proverka-sostoyaniya-generatora.html

7.2. Check of a condition of the generator

On a cover to the generator party there are the plugs designated by letters S, L and "In".

 PERFORMANCE ORDER

  1. Make sure of completeness of a charge of the storage battery.
  2. Check up serviceability of a condition of all safety locks and fusible inserts in the block of distribution of the capacity, located near to the right support of a rack of a forward suspension bracket in an impellent compartment of the car. If any of inserts has a brown shade, check up chain electroconducting on a site between the block of distribution of capacity and generator plug "In" on presence of signs of short circuit on weight. Make necessary regenerative repair.
  3. Turn a key in the ignition lock in position RUN and observe reaction of a control lamp of a charge to an instrument guard. If the lamp does not light up, pass to performance of the following check, otherwise the following paragraph should be passed.
  4. Disconnect electroconducting from plugs "S" and L on a back cover of the generator and by means of a wire-crosspiece earth last (L) on weight, — if the lamp does not work, check up actually its condition, and also a condition of corresponding electroconducting and a safety lock. At lamp operation replace the built in regulator of pressure.
  5. Start the engine and lift its turns to 1500 in a minute. If the control lamp of a charge does not light up, hence the system is perfectly in order, otherwise pass to the next stage of check.
  6. Muffle the engine and check up effort of a tension приводного a generator belt, and also a condition of contact plugs "In", S and L on a back cover and a safety lock of a chain of plug "S". Execute necessary regenerative repair. If all under control elements are found in a satisfactory condition, pass to a following stage of check.
  7. Start the engine and leave its working on single turns. At operation of a control lamp pass to a following stage of check, otherwise the system is perfectly in order.
  8. Lift turns of the engine to 1500 in a minute and measure pressure on generator plug "In". If the result of measurement surpasses value in 15.5 In, replace a pressure regulator. Underestimated in relation to onboard pressure testifies to breakage of a field chain. Make necessary regenerative repair of the generator.


Check on a workbench

Generator Hitachi design — see an illustration the Design of generator Hitachi applied on models Infiniti QX4.


Anchor

 PERFORMANCE ORDER

  1. By means of a digital multimeter check up conductivity presence between sliding contact rings an anchor. In the absence of conductivity replace an anchor.
  2. Check up conductivity between each of sliding rings and the core of anchor assemblage. Conductivity should be absent, otherwise the anchor is subject to replacement.
  3. Measure diameter of sliding rings, — the minimum admissible value is resulted in Specifications.


Статор

 PERFORMANCE ORDER

  1. By means of a digital multimeter check up conductivity between core wires статора. In the absence of conductivity статор is subject to replacement.
  2. Check up conductivity between the core and each of windings статора. Conductivity should not be. Faulty статор is subject to replacement.


Diodnaja assemblage

The branch диодной assemblages from статора is made by отпаивания connecting wires, — try not to overheat diodes!


 PERFORMANCE ORDER

  1. Connect a positive wire of a digital multimeter to a positive plate диодной assemblages, a negative wire — to any диодной to the plug. Consider the measuring instrument indication, then change polarity of connection and repeat check. Conductivity should take place only in one direction. Operating in a similar manner, check up each of assemblage diodes. If during any of checks conductivity takes place in both directions or is absent at both measurements, диодная assemblage is subject to replacement.


Brushes

 PERFORMANCE ORDER

  1. Check up freedom of sliding of brushes in holders. In case of need smooth out directing holders.
  2. Attentively study brushes on presence of cracks and signs of excessive deterioration.
  3. Check up integrity щеточных springs
  4. Make sure that the residual length of brushes does not leave for the minimum admissible limit (Specifications see), — restrictive basic labels in a kind рисок can be drawn also directly on a body of brushes.


On page back
7.1. Specifications
On the following page
7.3. Check of serviceability of a condition of a starter