Adjusting shim 445/12303 JCB, genuine

Adjusting shim 445/12303 is a genuine JCB part for the JCB machines. According to the product card, this part is an adjusting shim.

Adjusting shims set the axial position of parts and the bearing preload in gearboxes, axles and other units. Shim thickness matters to hundredths of a millimetre: too thick a shim squeezes and heats the bearings, too thin a shim leaves play and upsets gear meshing. Adjusting shims are therefore chosen to the measured value, and shims of different thicknesses may be used in one unit. The measured value is recorded in the service record.

Specifications

Compatibility

According to the product card, the part number is 445/12303. Fit is confirmed by the part number. The catalogue also has the aftermarket version of this part. Other parts are in Washers.

Fitting

Before fitting the washer, clean the seating faces and remove burrs and old seal remains. Fit the washer the right way round and tighten the joint to the specified torque. Copper and aluminium sealing washers that have been removed are not reused; new ones are fitted.