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7-2-proverka-sostoyaniya-generatora.html
7.2. Check of a condition of the generatorOn a cover to the party of the generator there are the plugs designated by letters of "S", «L» and "In".
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- Make sure of completeness of a charge of the storage battery.
- Check serviceability of a condition of all safety locks and fusible inserts in the block of distribution of the capacity, located near 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 chain electroconducting on a site between the block of distribution of capacity and the generator plug "V" on existence of signs of short circuit on weight. Make necessary regenerative repair.
- Turn a key in the ignition lock in the situation RUN and observe reaction of a control lamp of a charge on an instrument guard. If the lamp does not light up, pass to performance of the following check, otherwise the following paragraph should be passed.
- Disconnect electroconducting from S and L plugs on a back cover of the generator and by means of a wire crossing point earth the last («L») on weight — if the lamp does not work, check actually its condition, and also a condition of the corresponding electroconducting and a safety lock. At operation of a lamp replace the built-in regulator of tension.
- Start the engine and lift its turns to 1500 in a minute. If the control lamp of a charge does not light up, therefore system as it should be, otherwise pass to the next stage of check.
- Muffle the engine and check effort of a tension of a driving belt of the generator, and also a condition of contact In, S and L plugs on a back cover and a safety lock of a chain of the plug "S". Execute necessary regenerative repair. If all under control elements are found in a satisfactory condition, pass to the following stage of check.
- Start the engine and leave it working at single turns. At operation of a control lamp pass to the following stage of check, otherwise system as it should be.
- Lift engine turns to 1500 in a minute and measure tension on the generator plug "V". If the result of measurement surpasses value in 15.5 In, replace a tension regulator. Underestimated in relation to onboard tension testifies to break of a field chain. Make necessary regenerative repair of the generator.
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Check on a workbench
Hitachi generator design — see the illustration Design of the Hitachi generator applied on the Infiniti QX4 models.
Anchor
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- By means of a digital multimeter check conductivity existence between sliding contact rings an anchor. In the absence of conductivity replace an anchor.
- Check conductivity between each of sliding rings and the core of anchor assembly. Conductivity should be absent, otherwise the anchor is subject to replacement.
- Measure diameter of sliding rings — the minimum admissible value is given in Specifications.
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Stator
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- By means of a digital multimeter check conductivity between wires of the core of a stator. In the absence of conductivity the stator is subject to replacement.
- Check conductivity between the core and each of stator windings. Conductivity should not be. The faulty stator is subject to replacement.
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Diode assembly
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The separation of diode assembly from a stator is made by an otpaivaniye of connecting wires — try not to overheat diodes! |
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- Connect a positive wire of a digital multimeter to a positive plate of diode assembly, a negative wire — to any diode 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 each of assembly diodes. If during any of checks conductivity takes place in both directions or is absent at both measurements, diode assembly is subject to replacement.
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Brushes
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- Check freedom of sliding of brushes in holders. In case of need smooth out directing holders.
- Attentively study brushes on existence of cracks and signs of excessive wear.
- Check integrity of shchetochny springs
- Make sure that the residual length of brushes does not leave out of the minimum admissible limit (see. Specifications) — restrictive basic labels in a look рисок can be drawn also directly on a body of brushes.
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