SAFETYTNV DI Service Manual 3-17Safety PrecautionsCAUTIONProtect the air cleaner, turbocharger (ifequipped) and electric componentsfrom damage when you use steam orhigh-pressure water to clean the engine.0000014enCAUTIONNEVER use high-pressure water orcompressed air at greater than 28 psi(193 kPa; 19 686 mmAq) or a wire brushto clean the radiator fins. Radiator finsdamage easily.0000016enCAUTIONNEVER attempt to adjust the low or highidle speed limit screw. This may impairthe safety and performance of themachine and shorten its life. If the idlespeed limit screws require adjustment,see your authorized Yanmar industrialengine dealer or distributor.0000017enCAUTIONThe tightening torque in the StandardTorque Chart (see General ServiceInformation section) should be appliedonly to the bolts with a “7” head. (JISstrength classification: 7T)• Apply 60% torque to boltsthat are not listed.• Apply 80% torque whentightened to aluminum alloy.0000023enTNVDISMCAUTIONIf any indicator fails to illuminate whenthe key switch is in the ON position, seeyour authorized Yanmar industrialengine dealer or distributor for servicebefore operating the engine.0000028enCAUTIONEstablish a periodic maintenance planaccording to the engine application andmake sure you perform the requiredperiodic maintenance at the intervalsindicated. Failure to follow theseguidelines will impair the engine’s safetyand performance characteristics,shorten the engine’s life and may affectthe warranty coverage on your engine.See Yanmar Limited Warranty inWarranty Section.Consult your authorized Yanmar dealeror distributor for assistance whenchecking items marked with a z.0000024enTNVDISMCAUTIONIf the fuel filter / water separator ispositioned higher than the fuel level inthe fuel tank, water may not drip outwhen the fuel filter / water separatordrain cock is opened. If this happens,turn the air vent screw on the top of thefuel filter / water separator 2-3 turnscounterclockwise.Be sure to tighten the air vent screwafter the water has drained out.0000025en