JCB Generator G33S

Safety decals in good condition

Emergency stop switches operational

Earth Leakage RCD and MCB(1) operational

Change external cartridge dry type air filter

Radiator heat-exchange surface checked

Alternator belt tension checked

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.

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

Warning: Shield the engine air intake, alternator, starter motor and any other electrical components from direct cleaning by the high pressure cleaning system.

Engine properly cleaned before service procedures?

Engine cooled for at least one hour before cleaning?

All electrical connectors correctly coupled?

Alternator covered with a plastic bag to prevent water ingress?

Engine air intake, exhaust and breather system sealed?

Oil filler caps and dipstick correctly installed?

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.

WARNING Hot oil and engine components can burn you. Make sure the engine is cool before doing this job.

Used engine crankcase lubricants contain harmful contaminants. In laboratory tests it was shown that used engine oils can cause skin cancer.

CAUTION It is illegal to pollute drains, sewers or the ground. Clean up all spilt fluids and/or lubricants.

Used fluids and/or lubricants, filters and contaminated materials must be disposed of in accordance with local regulations. Use authorised waste disposal sites.

Remove the engine oil drain plug. Drain the oil in to a suitable container.

Follow all the precautions described below, to prevent damage to the alternator and battery.

2. Make sure that the battery negative terminal is connected to the earth cable.

3. Do not connect or disconnect the battery or alternator connections, or any part of the charging circuit while the engine is in operation. If you disregard this instruction, the regulator or rectifying diodes will be damaged.

4. Main output cables are always in active state of current flow even when the engine is not in operation. If the alternator connector is removed, do not earth the moulded plug.

5. When you do arc welding on the machine, remove the moulded plug (or if the separate output cables are installed, remove the cables) to protect the alternator.

6. If it is necessary to jump start the battery then do the steps below.

6.1. Connect the secondary battery in parallel without disconnecting the vehicle battery from the charging circuit.