320/A8513
  • Brand
    JCB
  • Article
    320/A8513
  • Machine system
    Electrics
  • Part type
    Alternator
  • Machine brand
    JCB
  • Manufacturing type
    Original
  • All the features
In stock
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For the JCB 455ZX wheeled loader: alternator 320/A8513, a genuine JCB part.

Alternators differ in voltage (12 V or 24 V), current output, pulley type and mounting lugs, so the alternator is chosen by part number and compared with the old one. The number of grooves and the diameter of the pulley must suit the engine belt, since a wrong pulley makes the belt slip and wear. Over time the bearings, brushes and diodes wear, and bearing noise or a rustle as it turns is the first sign of bearing wear. The alternator label shows the maker's code, voltage and current rating, which are compared with the old unit when choosing. The pulley's groove count must suit the belt.

Specifications


Part number320/A8513
Production typeOriginal
Part typeAlternator
System / groupElectrics
Machine makeJCB

Compatibility

The product card lists it as the genuine alternator for the 455Z. Other parts are in Alternators.

Fitting

Before removing the alternator, disconnect the battery negative and label the cables. Fit the new alternator, tighten its bolts and set the belt to the specified tension. After connecting the cables, reconnect the battery, start the engine, measure the charging voltage at the battery terminals and check that the charge lamp goes out.

Specifications

  • Machine system
    Electrics
  • Part type
    Alternator
  • Machine brand
    JCB
  • Manufacturing type
    Original
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JCB 3CX / 4CX Electrics: Fuses, Relays, Battery, Alternator and Starter Motor Tests
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Starter, battery and alternator on a JCB 3CX/4CX: checks before replacing
If the machine is hard to start or the battery does not charge, do not rush to replace the starter or the alternator. Simple voltmeter readings often show that the cables, the earth or the battery itself are to blame. The data comes from the JCB service manual for 3C, 3CX and 4CX backhoe loaders. It covers machines with the JCB Dieselmax 4.4 l engine and a 12 V electrical system.
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