Items of Special Importance General The vehicle is equipped with a 12 volt negative ground electrical system. When replacing or fitting electrical or electronic components, always verify that they are suitable for this system voltage, polarity, and capacity. Do not disconnect the battery terminals while the engine is running; failure to observe this precaution may result in major damage to the alternator. Serious battery damage and vehicle starting difficulties will occur if the bat- teries are discharged (“drained”) below 12 volts. To prevent the batteries from being inadvertently discharged, it is essential the following precautions are observed:
System Voltage Batteries coolant additive Pencool 3000 with Stabil-Aid. As needed, fill or top off the cooling system only with a ready-mixed clean water/approved antifreeze solution using these prod- ucts. The use of other antifreeze products will void your engine, radi- ator, and cooling system warranties. The engine cooling system is thermo- statically controlled, so the use of a radiator cover in cold weather is unnecessary. If the pressure in the air reservoirs drops rapidly with the engine switched off, this indicates a leak in the com- pressed air system. Since this affects the safety of the brake system, the leak must be traced and repaired as quickly as possible.
Air Leakage Before stopping the engine, allow it to idle for one to two minutes (par- ticularly if the engine has been sub- jected to a high speed journey or high engine loadings). This proce- dure will ensure an adequate oil supply to the turbocharger bear- ings while the rotor assembly is cooling, thus improving the life span of the turbocharger bearings. Any abnormal noises or vibrations from the turbocharger must be reported immediately. CAUTION: Damage to the engine and cooling system, such as corrosion and cavi- tation erosion, will occur unless anti- freeze ZEREX PENRAY 2792 is used and maintained with supplemental Cooling System