18:12. Starter of the diesel engine
Sequence of dismantling of a starter
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Assembly of a starter is carried out to the sequences, the return dismantling. |
Adjustment of a gap of a gear wheel
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- Disconnect a starter engine wire from the plug "M".
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- Additional wires connect plugs of the rechargeable battery to plugs S and M.
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The following check needs to be executed during 10 with as, otherwise, the coil of the traction relay can fuse. |
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- Include ignition, at the same time the gear wheel of a starter will be pushed forward. A finger remove a gear wheel back and the probe check a gap between a gear wheel and a stopper.
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- If the gap differs from demanded, adjust it, adding or removing laying between the traction relay and a forward cover. Gear wheel gap: 0,5–0,2 mm.
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Check of the traction relay of a starter
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Disconnect a starter engine wire from the plug "M". The traction relay is serviceable if the plunger is involved at connection of plugs of the rechargeable battery to the S and M plugs. If the gear wheel does not move forward, replace the traction relay.
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This check needs to be executed during 10 with as, otherwise, the coil of the traction relay can fuse. |
Check of the holding winding of the traction relay
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Disconnect a starter engine wire from the plug "M". Additional wires connect plugs of the rechargeable battery to the S plug and the case of the traction relay and manually to a stopper extend a gear wheel. If the gear wheel remains in this situation, so the holding winding of the traction relay is serviceable.
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This check needs to be executed during 10 with as, otherwise, the coil of the traction relay can fuse.
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Check of return of a plunger of the traction relay
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Disconnect a starter engine wire from the plug "M". Additional wires connect plugs of the rechargeable battery to the plug "M" and the case of the traction relay, at the same time the gear wheel of a starter has to be pushed forward. After a detachment of wires the gear wheel of a starter has to return to a starting position quickly.
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This check needs to be executed during 10 with as, otherwise, the coil of the traction relay can fuse.
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Operational tests (idling)
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- For carrying out tests of idling collect the scheme shown in the drawing.
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- Establish a rheostat cursor in such situation at which the voltmeter will show tension 11,5 B, at the same time check the current consumed by a starter and be convinced that the shaft of a starter is turned easily and smoothly. If the consumed current differs from demanded, determine by the table and remove a cause of defect.
Sign
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Possible reason
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The big consumed current with a low frequency of rotation of a shaft of a starter
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The polluted bearing |
Friction of a winding of a rotor about a pole |
The winding of a rotor and the coil of excitement are closed on "weight" |
The rotor winding is damaged |
The big consumed current in the absence of rotation of a shaft of a starter
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The solenoidal switch is closed on "weight" |
The winding of a rotor and the coil of excitement are closed on "weight" |
The bearing is jammed |
There is no consumed current and the shaft of a starter does not rotate
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Damage of a rotor and coil of excitement |
The brush is broken or the flexible conductor of a brush is torn off |
The contact between a brush and a collector is broken |
The small consumed current with a low frequency of rotation of a shaft of a starter
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Wrong connection of a winding of the coil of excitement |
The big consumed current with a high frequency of rotation of a shaft of a starter
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Short circuit in the excitement coil |
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