jcb JS300 Service Manual page 821

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Before assembling the gear box make sure that a thorough

inspection of all the components is carried out. Remember

that although a failed component may be easy to identify,

the cause may be less easy to trace. It is also possible that

a failed component may have caused damage to other

areas of the gearbox.

Components that are subject to general wear and tear are

the following5

Gears 2-2, 2-2, 2-7, 2-9, 2-11

Pinion shaft 2-21

Bearings 2-14, 2-18

Carefully clean all components using a suitable

degreasing agent.

Carefully inspect all gears, bearings and shafts for

signs of excessive wear or damage. If wear or

damage is evident, components must be renewed.

In the case of damaged gears, for example a

planetary gear, do not proceed to replace the

individual gears but the entire assembly.

Section E - Hydraulics

Swing Gearbox

Dismantling and Assembly

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