Environment and safety Electric welding Cooling system IMPORTANT! WARNING! When carrying out welding work on and near the engine, disconnect the battery and alternator leads. Pull out the multi-pin connector for the en- gine control unit as well. Never open the coolant filler cap when the en- gine is hot. Hot coolant and steam may spray out and cause burns. Connect the welding clamp close to the compo- nent to be welded. The welding clamp must not be connected to the engine, or so that the current can cross a bearing. If the cap has to be opened do it slowly and care- fully to release the pressure before removing the cap. Wear gloves as the coolant is still very hot.
When welding is finished: Environment 1. Connect the alternator and control unit ca- bles first. Always hand in used coolant to an authorised waste disposal contractor. 2. Then connect the batteries. Lubrication system Fuel system WARNING! WARNING! Hot oil can cause burns and skin irritation. Wear protective gloves and goggles when changing hot oil. Always wear protective goggles when testing in- jectors. Fuel escaping at high pressure can pene- trate tissues and cause serious injury. Scania recommends that Scania spare parts are used for the fuel and electrical systems. Scania spare parts are designed to minimise the risk of fire and explosion.
Make sure that there is no pressure in the lubri- cation system before starting work on it. The oil filler cap must always be in place when starting and running the engine to prevent oil be- ing ejected. Environment Always hand in used oil to an authorised waste disposal contractor. OPM 300 en-GB 10 © Scania CV AB 2015, Sweden