Doosan G20 SIIIA, Руководство по эксплуатации и техническому обслуживанию

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75 G20, 30, 40 SIIIA Operation & Maintenance Manual
Electrical system
The engine must be switched off and the power
disconnected using the master switch or battery master
switch before working on the electrical system. External
power supplies to extra equipment on the engine must
also be disconnected.
Electric welding
CAUTION
When carrying out welding work on and near the
engine, disconnect the battery and alternator leads.
Pull out the multi-pin connector for the engine
control unit as well.
Connect the welding clamp close to the component
to be welded. The welding clamp must not be
connected to the engine, or so that the current can
cross a bearing.
When welding is finished:
1) Connect the alternator and control unit cables first.
2) Then connect thee batteries.
Lubrication system
WARNING
Hot oil can cause burns and skin irritation. Wear
protective gloves and goggles when changing hot
oil.
Make sure that there is no pressure in the lubrication
system before starting work on it.
The oil filler cap must always be in place when
starting and running the engine to prevent oil being
ejected.
Environment
Always hand in used oil to an authorised waste disposal
contractor.
Cooling system
WARNING
Never open the coolant filler cap when the engine is
hot. Hot coolant and steam may spray out and cause
burns.
If the cap has to be opened do it slowly and carefully
to release the pressure before removing the cap.
Wear gloves as the coolant is still very hot.
Environment
Always hand in used coolant to an authorised waste
disposal contractor.
Fuel system
WARNING
Always wear protective goggles when testing
injectors, Fuel escaping at high pressure can
penetrate tissues and cause serious injury.