JCB Generator G20S

CAUTION This component is heavy. It must only be removed or handled using a suitable lifting method and device.

Notice: Before you install a pair of batteries to a machine, make sure you know the machines voltage. Some machines require two batteries but have a 12 V electrical system. This means the batteries need to be connected in parallel.

For 24 V machines, the batteries must be connected in series. Incorrect voltage may result in serious damage to the electrical system.

The illustrations show typical battery connections. The actual battery connections installed on your machine may look different

Get access to the battery or batteries (depending on the specification of your machine).

If installed, move the battery isolator switch to the off position and then remove the key.

Disconnect the negative battery lead first. Refer to Figure 94. and Refer to Figure 95.

Disconnect the positive battery lead and put it away from the batteries. Refer to Figure 94. and Refer to Figure 95.

Do not attempt to wash or clean the elements, they must only be renewed.

2. Depress the clips on the cover and lift off the cover.

3. Remove the outer element. Take care not to tap or knock the element.

4. If the inner element is to be changed, lift up, pull and remove the inner element.

1. Replacement is a reversal of the removal procedure.

WARNING Never check the oil level or add oil with the engine running. Be careful of hot lubricating oil. Danger of scalding.

Notice: Do not exceed the correct level of engine oil in the sump. If there is too much engine oil, the excess must be drained to the correct level. An excess of engine oil could cause the engine speed to increase rapidly without control.

Wait for the oil to drain back into the engine sump before you take a reading. If not, a false low reading may be recorded which can cause the engine to be overfilled.

WARNING: Do not top the battery up with acid. The electrolyte could boil out and burn you.

Maintenance free batteries used in normal temperate climate applications should not need topping up.

However, in certain conditions (such as prolonged operation at tropical temperatures or if the alternator overcharges) the electrolyte level should be checked.

Open the battery access panel and get access to the battery.

Remove the battery from the machine.

Look at the level in each cell.

Enter the electrolyte level above the plates (in mm)

Warning: Follow the correct procedures to avoid contamination of the fuel system and damage to the engine.

Special precautions must be taken if the engine is to be washed using a high pressure system.

All electrical connectors are correctly coupled

Alternator is covered with a plastic bag to prevent water ingress

Engine air intake, exhaust and breather system are sealed

Oil filler caps and dipstick are correctly installed

Used a low pressure water jet and brush to soak off caked mud or dirt

Applied an approved cleaning and degreasing agent with a brush