Safety information Main cables (24 V system voltage) Note. The components in the wiring diagram have the same numbers as in the perspective diagram on page 45. 1. Starter button 2. Latching relay 3. Stop button 4. Tachometer 5. Coolant temperature gauge 6. Oil pressure gauge 7. Charge warning lamp 8. Pre-heating indication 9. Engine speed potentiometer 10. Diagnostic connector 11. Regulator, position indicator 12. Regulator, position switch 13. Diagnostic button 14. Diagnostic lamp 15. Calibration button 16. Power supply 17. 16 pin connector 18. Fuse 19. Key switch 20. Warning lamp, coolant level 21. Warning lamp, coolant temperature 22.
Warning lamp, oil pressure NO = Normally open during operation. Cables shown with broken lines are not supplied by Volvo Penta Cable areas not specified = 0.5 mm 2 . NOTE! The higher-level cable installation is a rec- ommendation from Volvo Penta. Cable colours etc. are the customer’s responsibility. Introduction The workshop manual contains technical data, descrip- tions and repair instructions for specified products or product versions supplied by Volvo Penta. Make sure you use the correct workshop literature.
Be careful with hot surfaces (exhaust pipes, tur- bos, charge air pipes, starting heaters etc.) and hot fluids in pipes and hoses on an engine which is running or which has just stopped. Re-install all guards which have been removed during service work, before re-starting the engine. Read the available safety information, “General in- formation“ and “Repair instructions“ before you start to do any service work. Make sure that the warning or information labels on the product are always clearly visible.Replace labels which have been damaged or painted over. Important The following special warning signs are found in the workshop manual and on the product.
Never start an engine without the air filter in pla- ce. The rotating compressor turbine in the turbo- charger can cause severe injury. Foreign bodies in the inlet pipe can also cause severe mechani- cal damage. WARNING! Warns for the risk of personal injury, major damage to product or property, or serious malfunctions if the instruction is ignored. Never use start spray or similar products as a starting aid. Explosions could occur in the inlet manifold. Danger of personal injury. IMPORTANT! Is used to call attention to things which could cause damage or malfunctions to product or property. NOTE! Is used to call attention to important informa- tion, to facilitate work processes or operation.
Only start the engine in a well-ventilated area. When operated in a confined space, exhaust fu- mes and crankcase gases must be ventilated from the engine bay or workshop area. To give you a perspective on the risks which always need to be observed and precautions which always have to be taken, we have noted them below. Avoid opening the coolant filling cap when the en- gine is hot. Steam or hot coolant can spray out at the same time as the pressure which has built up is lost. Open the filler cap carefully if necessary, and release the excess pressure in the cooling system. Be extremely careful if a tap, plug or coolant hose has to be removed from a hot engi- ne.
Steam or hot coolant can stream out in an unexpected direction. Make it impossible to start the engine by cutting system current with the main switch(es) and lock it (them) in the off position before starting service work. Fix a warning sign by the helmsman’s seat. All service work should normally be done on a stationary engine. Some work, such as adjust- ments, need the engine to be running, however. Going close to a running engine is a safety risk. Remember that loose clothes, long hair etc. can catch on rotating components and cause severe injury. Hot oil can cause burns. Avoid skin contact with hot oil. Make sure that the oil system is de-pres- surised before doing any work on it.
Never start or run the engine with the oil filler cap removed, because of the risk of oil spillage. If work is done adjacent to a running engine, a careless movement or a dropped tool can lead to personal injury in the worst case. Stop the engine before doing any work on the cooling system. Control panel layout 2 51