Error code

JCB All models code A1

For your safety

This fault is rated critical. No remote repair or do-it-yourself instructions are given; do not use the appliance or try to open or repair it.

Hazard area: brakes

If there is a risk to life, first move to a safe place, then call 112. Do not follow remote repair instructions.

Call 112

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Meaning

Pedals Locked - Compensating Operation When the brake pedals are pushed down (the brake pedals are mechanically locked together), actuation of the brake packs H and H1 is as described in Pedals Locked - Normal Operation. If however, the brakes have not worn equally, then the amount of fluid displaced from each master cylinder will vary and some form of compensation is required. Pedal application moves plungers E down the bores of master cylinders A and A1. Linings of brake H are brought into contact before the linings of brake H1 because they have not worn as severely. If further displacement took place at the linings, brake H would be applied before brake H1. Therefore master cylinder A begins to compensate for master cylinder A1. Fluid is displaced from A to A1 via bridge pipe M until the pressures are equalised. In this condition both compensating valves are open and both brakes are applied evenly. Pedals Unlocked - Normal Operation When a single brake pedal is pushed down, rod D pushes the plunger E down the bore of the master cylinder. As the plunger continues

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Solution

Solution steps are not shared for faults that may be dangerous.

No do-it-yourself solution is given for this fault. For your safety, call an authorised service.